Почему лагает клавиатура: Глючит клавиатура на компьютере что делать. Сбой программного обеспечения или драйверов. Пролитая на клавиатуру жидкость и загрязнения

Почему лагает клавиатура на ноутбуке. Не работает клавиатура на ноутбуке: что делать

Нередки случаи, когда не работает клавиатура ноутбука. Причем, никакой роли не играет, какой марки ваше устройство. Это может произойти внезапно, как говорится само по себе, или же после определенных манипуляций пользователя. Что же делать и каковы причины неполадок? Рассмотрим наиболее частые из них.

Заводской брак

Одной из причин того, что не работает клавиатура ноутбука, является заводской брак. В том случае, если вы приобрели лэптоп совсем недавно и имеется на него гарантия, то следует обратиться к мастерам в сервисный центр. Нередки случаи, когда владельцы компьютеров прибегают к помощи знакомых. В этом есть свои минусы. Он может не только не починить поломку, но и сорвать пломбы. В таком случае гарантия не будет действовать, а платить за ремонт придется с собственного кошелька.

NumLK

Многие сталкивались с проблемой, когда не функционирует определенная часть клавиатуры. В таком случае просто зажмите NumLK одновременно с клавишей FN, все снова начнет работать исправно.

Вирус

Да, именно вирусы часто становятся причиной неполадок. Вирус повреждает драйвера, которые будут отвечать за ее работу. Кроме того ваш аппарат может полностью отказаться работать или тормозить.

Часто можно наблюдать, когда при включении устройства нужно определенное время для «разогрева» (минут 20-90). Все это время работать практически невозможно. Некоторые кнопки могут не срабатывать, а если и будут, то для вывода информации на экран требуется некоторое время. После истечения 20-90 минут клавиатура продолжит работать так, словно с ней ничего не было. Это свидетельствует о том, что на лэптопе есть вирус.

Все дело в работе клавиш

Если же у вас не функционируют определенные клавиши, а на компьютере нет вирусов, то рассмотрим следующее. Большинство клавиш ноутбука состоят из 3 частей: площадка, лифт, подпружинивающий элемент. Соединяются все элементы с помощью защелок. Если использовать, к примеру, отвертку, и приподнять клавишу, то снять ее не составит труда. Почистите площадку и установите клавишу обратно. Проверьте, реагирует ли она на нажатие.

Сбой

Рассмотрим тот вариант, когда клавиатура всегда работала исправно и по некоторым причинам вы не можете с ней работать в самой системе. В таком случае можно говорить о сбое. На самом деле, эта одна из частых причин, по которым пользователи обращаются к специалистам. И не секрет, что они потребуют за работу немалые деньги. Но довольно таки легко самостоятельно определить — сбой ли это.

1. Перезагрузите компьютер.
2. Зайдите в BIOS. Для этого необходимо во время включения нажать клавишу DELETE, также можно воспользоваться клавишей F2.
3. Появление окна с английскими буквами на синем, иногда сером фоне будет свидетельствовать о том, что вам удалось зайти в BIOS.
4. Вход в BIOS означает, что аппарат отреагировал на нажатие кнопок и сейчас нужно всего лишь выйти из него и заново перезагрузить. То есть, таким образом можно было определить, что это всего лишь сбой и в дальнейшем все будет работать исправно.

Шлейф

Не получилось войти в BIOS? Именно сейчас работа будет заключаться в разборке устройства. Дело, конечно, не столь сложное. Переживать по этому поводу тоже не стоит.

1. Воспользуйтесь инструкцией. Разные модели разбираются по-разному.
2. Нет инструкции? В таком случае воспользуйтесь интернетом. Введите модель вашего ПК и вопрос «Схема сборки».
3. Вынимайте клавиатуру, строго следуя инструкции.
4. Сейчас необходимо внимательно осмотреть шлейф. Нередко именно он становится причиной неисправности клавиатуры.
5. Если отошли контакты или окислились, то проблема кроется именно здесь. В таком случае необходимо заменить шлейф.

Загрязнение

Если же шлейф в порядке, то есть возможность, что причиной неработающей клавиатуры стало именно загрязнение. Для этого необходимо просто очистить ее от пыли и мусора.

Все дело в заряде

В тех случаях, если вы работаете на аккумуляторной батарее, можно говорить о следующем: при слишком низком заряде батареи клавиатура может не работать вовсе. Привести все в прежнее состояние поможет элементарная зарядка аккумулятора.

Перегрев или переохлаждение

Одной из причин может служить то, что аппарат на протяжении долгого времени находился в жарком помещении или под воздействием прямых солнечных лучей, после чего его резко переместили в прохладную среду. Либо иной вариант: лэптоп пребывал в холодном помещении, после чего благополучно «переехал» в более теплое. В таком случае можно говорить о том, что контакты просто временно заклинило. В этом нет ничего страшного, просто нужно дать технике немного «отойти» и клавиатура будет работать как прежде. Просто выключите ПК. Ни в коем случае не нужно его включать.

Пусть его компоненты охладятся до комнатной температуры именно в выключенном состоянии. Отведите на это не более 40 минут. После этого все будет работать.

«Чай, кофе, посидим?»

Очень частой причиной поломок является то, что на клавиши была пролита жидкость. В таком случае не стоит медлить. Необходимо сразу выключить устройство. Если оно долго выключается, в таком случае не остается другого выхода, как сделать аварийное выключение. Выньте аккумулятор, дайте жидкости стечь, просушите. Не забывайте о том, что питание нужно отсоединить заранее.

Просушить компьютер можно с помощью обычного фена. Очень хорошо, если в нем есть функция подачи холодного воздуха. Этим можно добиться следующего: замедлить, а некоторых случаях и вовсе избежать процесса окисления плат, микросхем и контактов. Запомните, жидкость и техника – несовместимы.

Если жидкость повредила дорожку клавиши, то иного варианта, как отнести на ремонт ноутбук нет.

Несмотря на все, если возможности самостоятельно починить клавиатуру нет, а она нужна непосредственно в данный момент, есть выход. Воспользуйтесь виртуальными клавишами ОС Windows. Они выступают эмуляторами кнопок. Для того чтобы открыть программу требуется:

Используйте мышку и нажимайте на нужные клавиши для ввода определенных символов.
Иной вариант: подключение обычной клавиатуры к ноутбуку через USB-порт или модуль Bluetooth.

Вам понадобится:

• Клавиши Num Lock, Caps Lock, Scroll Lock
• Окно «Специальные возможности»
• Руководство пользователя данного ноутбука
• Функциональные клавиши в сочетании с клавишей Fn
• Адреса сервисных центров, телефоны и адреса электронной почты техподдержки

Заблокированная на ноутбуке клавиатура это настоящая проблема. Ноутбук вообще никак не реагирует на нажатие клавиш либо откликается случайным образом на нажатие некоторых символов или цифр. Заблокированная клавиатура делает невозможным использование устройства — невозможно ввести адрес в адресной строке браузера, ответить на письмо, набрать текст в текстовом редакторе. К сожалению, вопрос как разблокировать клавиатуру на ноутбуке не имеет однозначного ответа. Варианты действий в этой ситуации отличаются в зависимости от модели ноутбука и фирмы производителя, а также зависят от ситуации, которая привела к блокировке. Некоторые действия все же можно предпринять самостоятельно, чтобы разблокировать клавиатуру на ноутбуке без обращения к специалистам.

Возможно, клавиатура перестала работать как должна в результате нажатия функциональных клавиш Num Lock, Caps Lock, Scroll Lock. Необходимо проверить, не горят ли на клавиатуре соответствующие световые индикаторы. Очень часто пользователи случайно нажимают эти клавиши, совершенно не собираясь переходить в другой режим работы клавиатуры. Например, клавиша Num Lock на клавиатурах ноутбуков, перестраивает часть буквенных клавиш и заменяет клавиши «U», «I», «O» цифрами «4», «5», «6», клавиши «J», «K», «L» цифрами «1», «2», «3» и далее подобным образом. Нужно выключить световые индикаторы Num Lock, Caps Lock, Scroll Lockнажав соответствующую клавишу на клавиатуре. Иногда дополнительно нужно удерживать нажатой кнопку Fn. Это зависит от модели ноутбука. Теперь осталось проверить клавиатуру, возможно, она вновь раб

90000 How to fix Bluetooth keyboard lag in Windows 10 90001 90002 90002 by 90004 Milan Stanojevic 90005 90006 Deputy Editor 90007 90008 90009 90009 90006 Input lag on a Bluetooth device can be very frustrating, especially when you’re working on something or playing your favorite game , and notice that something is slightly off. 90007 90006 It is already stressful enough to get your work done within the specified schedules, so when devices like your mouse or keyboard delay, they just compound the problem, and you end up getting less work done.90007 90006 Potential causes for such lags depend on factors like your computer settings, operating system, peripherals in use, and other hardware issues that pass off as keyboard problems. Another cause can be an incompatible device driver. 90007 90006 If you want to fix Bluetooth keyboard lag, try some of the solutions listed below and see if it helps. 90007.90000 why does my keyboard lag? 90001 90002 Keyboard lag at random 90003 90004 Hello, 90005 90004 I request you to try uninstalling and reinstalling the Keyboard Drivers. 90005 90004 Step 1: Uninstall the Keyboard Drivers 90005 90010 90011 Press «Windows Logo» + «X» keys on the keyboard. 90012 90011 Click on «Device Manager» from that list. 90012 90011 Search for the Keyboard from the device list, right click on it and then select «Uninstall». On the un-installation window, if you have an option: «Delete the driver software for this device» you may select that and then remove 90016 the corrupted drivers from the computer.90012 90011 Follow the on-screen instructions to complete it and then restart the computer if prompted. 90012 90011 After the restart, please go ahead with the next steps to install the latest drivers and check if that resolves the issue. 90016 90012 90023 90016 Update Driver Software from the Manufacturer’s website: 90004 Step 2: Go to the Computer manufacturer’s website and search for the latest Windows 10 drivers available for the Keyboard and then install it by following the instructions given in the website.90005 90004 If you still have the issue, install the drivers in compatibility mode. 90005 90004 Download the drivers from manufacture’s website for Windows 10, if there no drivers available for Windows 10, download the latest driver from the manufacturer’s website and 90016 try installing it in compatibility mode. 90016 Compatibility mode runs the program using settings from a previous version of Windows. 90005 90004 Follow these steps to install the drivers in compatibility mode and check if that helps.90005 90010 90011 Download the driver from the manufacturer’s website. 90012 90011 Right-click on the driver setup file and click on 90002 90016 ‘properties’ 90003. 90012 90011 Click on the 90002 ‘compatibility’ 90003 tab and check the box 90016 90002 ‘Run this program in compatibility mode for’ 90003 and select the operating system from the drop down menu and proceed with the installation. 90012 90011 Once this is done, restart the computer and check if the issue persists. 90012 90023 90016 You may also refer: 90002 Make older programs compatible with 90016 this version of Windows 90003 (Steps applies to Windows 10) 90004 I hope this helps you.If you have any further query in future, feel free to contact us. We will be happy to help you. 90005 90004 Thank you. 90005 90004 90005 .90000 python — Pygame keyboard input event lag 90001 Stack Overflow 90002 90003 Products 90004 90003 Customers 90004 90003 Use cases 90004 90009 90010 90003 Stack Overflow Public questions and answers 90004 90003 Teams Private questions and answers for your team 90004 90003 Enterprise Private self-hosted questions and answers for your enterprise 90004 90003 Jobs Programming and related technical career opportunities 90004 90003 Talent Hire technical talent 90004 90003 90004 90009.90000 What influences keyboard input speed 90001 90002 While everybody is focused on mouse lag, there’s little attention to keyboard lag. I’m going to explain to you why keyboard input latency matters, what influences it, and what you can do about it. 90003 90004 Why keyboard input latency matters 90005 90002 You know that argument that people used to have about 30 fps versus 60 fps? «The human eye can not see the difference» and you do not need more than 30 frames per second. By now you know better.90003 90002 That’s because people can perceive latencies down to 2ms or less. Moreover, the increased latency can also influence your accuracy. If you then realize that modern keyboards can still have a delay up to 60ms, you might want to be a bit more careful with your next purchase. 90003 90002 90011 90003 90002 If you’re a competitive player then this is a no-brainer. You need to have the shortest input delay possible. You’ll see competitive CSGO players using expensive 120hz + or old CRT screens, the most praised mouse (sensor) and complain about server tick rates or tweaking game settings for the least input latency.But they never stop to consider that keyboard lag is the biggest enemy of them all. 90003 90002 I’m not talking about any Windows software tweaks, or the perception that USB polling is a limiting factor that frequently appears in the CSGO community. 90003 90002 I’m talking about the actual keyboard hardware, because that’s where the real input lag starts. 90003 90019 Gaming keyboards 90020 90002 Do not be fooled by any marketing you see out there. 90022 Gaming companies like to make wild claims that are either deceptive or blatantly wrong 90023.Just so that they can tell you exactly what you want to hear, not what you get. 90003 90002 90026 90003 90002 If a product has «gaming» in its title these days, it’s for marketing, an excuse for its ridiculous design and RGB effects. It definitely does not mean it’s optimized for (competitive) gaming. 90003 90004 Input latency versus input accuracy 90005 90002 There’s a difference between the input latency and accuracy of a press. If you only need the fastest reactions, you’re looking at getting the least input lag.If you only need consistency in repeated presses, you’re looking at getting the best accuracy. 90003 90002 In Rhythm games, like OSU, you want the fastest input speed, but also the highest accuracy. Each action in OSU has a 80ms time frame to react or less for a perfect 300 score. This needs to account for your reaction time, movement, and input lag. 90003 90002 Your reaction time will likely consume the most, and the best way to combat it is by tapping at a rhythm and knowing exactly what’s going to come next.That’s why practice makes perfect. 90003 90002 You can increase your accuracy not only with the shortest input delay but also by coupling the point of most impact with the point of activation. 90003 90002 I’m going to focus solely on input latency from here on out. 90003 90004 The parameters of input 90005 90002 Before we step into what exactly influences the input latency, I’m going to dissect the steps a keyboard takes for an input to PC. It’s an oversimplification that only takes the main and most easy digestible parts.90003 90002 90047 90003 90049 90050 Key input is the actual physical press of the key. 90051 90050 Scan rate is the frequency at which the keyboard microcomputer chip (MCU) reads the keys. 90051 90050 MCU processing is the time it takes for the microcontroller (MCU) to process the input. 90051 90050 USB polling is the frequency at which the PC checks for input from the keyboard. 90051 90050 PC software is the time your operating software (OS) and the particular program / game your using needs to process the input.90051 90060 90004 Input latency influence factors 90005 90002 Now that you understand the journey of input latency, it’s time to look at what can influence it at a digestible level. 90003 90019 Switch travel distance 90020 90002 Switch travel distance influences step 1, Key input. Travel distance can have a huge impact in reaction time. According to a project about keyboard latency by Dan Luu, travel time can account to up 10ms. This is not taking into account any adjusted behaviour to minimize travel.Such as pre-loading and not pressing till the end. 90003 90002 In short, you could say 90022 a combination of the shortest travel distance and highest actuation point will result in the fastest key input. 90023 Also when you repeat a key press, any travel after the actuation point is wasted time. 90003 90002 This means that a switch type like scissor-switch with a 1 ~ 2.5mm travel distance will often have the fastest physical key input. 90003 90002 To put it in a plain comparison: 90003 90077 90078 90079 90080 90022 Switch type 90023 90083 90080 90022 Travel distance 90023 90083 90080 90022 Typical actuation point 90023 90083 90092 90079 90080 Scissor-switch 90083 90080 1 ~ 3mm 90083 90080 At end 90083 90092 90079 90080 «Low-profile» mechanical switch 90083 90080 ~ 3mm 90083 90080 1.2mm 90083 90092 90079 90080 Rubber dome 90083 90080 3.5 ~ 4mm 90083 90080 At end 90083 90092 90079 90080 Memchanical 90083 90080 4mm 90083 90080 At end 90083 90092 90079 90080 Mechanical switch 90083 90080 ~ 4mm 90083 90080 ~ 2mm 90083 90092 90133 90134 90002 But be aware, when a keyboard has rubber-dome type of switches, and any laptop with scissor switches. These are often coupled with a membrane computer board, which you should avoid at any time if you’re into the least latency with the most reliability.90003 90002 There are switches specifically made for a faster key input, such as the Cherry MX speed switches. They actuate at 1.2mm and travel up to 3.4mm. 90003 90002 Then there are unique type of keyboards that allow you to adjust the actuation point. At time of writing, limited to the Wooting one using modified Flaretech Prism switches and Topre Realforce RGB using Topre switches. 90003 90002 The Topre keyboard has 3 different actuations at 1.5, 2.2 and 3mm and 90022 the Wooting keyboard can be adjusted anywhere between the 1.5-3.6mm 90023. 90003 90002 It’s arguable that a higher actuation point might not be very practical at all times. You’ll accidentally press a key and might experience a frustrating time typing. So it’s important to take this in consideration. 90003 90019 Keyboard Scan Matrix 90020 90002 Every key on the keyboard is connected to the MCU, the brains on the keyboard. But there’s a limit to how many connections you can make to a MCU, let alone it’s very impractical to literally connect numerous keys.That’s why there’s a thing called a scan matrix. 90003 90002 90022 A scan matrix are all the keyboard keys divided in a grid layout 90023, so you will only need to connect the rows and columns instead of every key itself. It’s like a chess board that uses alphabetical columns and numbered rows to determine a chess piece location. 90003 90002 90156 90003 90002 By making only 16 connections (8 rows, 8 columns), it’s able to read 64 keys. Just enough for a 60% keyboard. 90003 90002 In terms in input latency, a matrix layout is not ideal because it’s an extra layer of complexity.It’s vunerable to ghosting and terrible non-optimized engineering. The often misinterpreted ghosting and related key-rollover do not directly influence input latency. But It’s a tell-tale for the quality of engineering and where costs were saved. A topic for another time. 90003 90002 It’s near impossible to find a keyboard that does not utilize a matrix layout. You rely on the manufacturer to make the most effective matrix layout that does not compromise input latency for lower cost. 90003 90019 Wooting keyboard scanning 90020 90002 Scanning with a matrix layout is limited to a digital signal.It does not actually read the key input itself, but by logic decides if it’s either ON or OFF. 90003 90002 The Wooting one needs to read every single key analog signal for analog input. Therefore it can not rely on a matrix layout. But connecting every key to the MCU is extremely inefficient. 90003 90002 That’s why all the Wooting one keys are divided in 6 rows, each row connected to a multiplexer. The multiplexer is a nifty component that can connect multiple keys with a single connection to the MCU.It’s like a network switch that allows more devices to connect to your router. 90003 90002 90173 90003 90002 You do not often see it in a keyboard, because it’s a more expensive solution than a matrix layout. 90003 90002 A direct connection between a key and the MCU is optimal for the least input lag. 90003 90019 Keyboard scan rate 90020 90002 Ever wondered how a keyboard knows you pressed a key? You would expect that pressing a key would send a signal to the MCU that it’s pressed, similar to how a PS / 2 connection works.But in fact, it’s more similar to USB polling. 90003 90002 The MCU will check all the keys every x amount of time for input. It’s literally asking every key, «hey have you been pressed yet?». This is referred to as the keyboard scan rate. 90003 90019 Scanning frequency 90020 90002 The keyboard scan rate can happen at different frequencies, often referred to as an x ​​amount of hertz (Hz), just like the USB polling rate. A scan rate of 1000hz is equal to 1ms. This means that the MCU will check every key, every 1ms for input.90003 90002 In theory, if a key is pressed faster than the scanning rate, it will not be detected. But in reality that’s near impossible to achieve unless you’re dealing with a real piece of junk keyboard. 90003 90002 Instead, during the time that the key is in its «on» state the keyboard scan will cycle by and pick it up. 90022 The moment the keyboard scans will never be in sync with the exact moment you activate a key. 90023 90003 90002 90196 90003 90002 This means that 90022 once you activate a key, it needs to wait for the next scan cycle to pick it up.90023 This adds a delay variable. The lower the frequency, the longer the cycles, the longer the input lag. 90003 90002 Common frequencies: 90203 • 125hz / 8ms 90203 • 250hz / 4ms 90203 • 500hz / 2ms 90203 • 1000hz / 1ms 90003 90002 A lot of keyboard manufacturers do not bother to implement a scan rate of 1000hz. It takes a higher toll on the MCU and they will argue that there’s switch debounce time. But in fact, a faster cycle means that in all cases the key will be picked up faster in its next cycle.90003 90019 Switch Debounce Time 90020 90002 Inside a mechanical switch when the two metal contacts touch each other, it has an unstable signal caused by the impact vibrations of the contacts. This is called bouncing. 90022 Debouncing is any kind of hardware or software that ensures that the signal is stable enough to read. 90023 90003 90002 Often a software solution is used. 90022 The keyboard firmware will delay reading the key until the signal is stable enough. 90023 If the implemented delay is not long enough, you will get multiple inputs from a single key press, also known as key chatter.90003 90002 Depending on the quality of the switch, the bouncing time will vary. The most popular Cherry MX switches have a bouncing time of up to 5ms. This means the software delay should at least be 5ms or higher. 90003 90002 In reality however, the manufacturer will often add a longer software delay because the switches will corrode over time and require a longer debounce time. A longer debounce time also helps them reduce the amount of defects. 90003 90002 Afterall, 100+ switches are installed on every single keyboard, if even one of those switches has chatter, the entire keyboard has to be returned.That’s a costly expense in logistics. 90003 90226 To put things into perspective. 90227 90002 If you buy an extremely cheap mechanical keyboard from Amazon, you can expect the following: 90003 90049 90050 The switches are from an unknown manufacturer with unknown quality. 90051 90050 The switches were not sorted and tested for key chatter. 90051 90050 The keyboard firmware has a very high debounce time to compensate. 90051 90060 90002 It’s also no wonder that there is not a single keyboard manufacturer that will openly talk about it.90003 90002 The Wooting one uses Flaretech optical switches, these have a bouncing time of 0.03ms. Therefore, the Wooting one scan rate is 1000hz (1ms) and is not limited to the switch bouncing time. 90003 90002 There are also other switch technologies with low bouncing times, but you better stay clear with anything that has a membrane computer board, like rubber dome keyboards. If you value input latency, stay clear of this. Just no. 90003 90019 MCU Processing Time 90020 90002 Your keyboard has a little chip inside called an microcomputer chip (MCU).It’s just like your computer central processing unit (CPU). It has the task to process every input into a keyboard firmware defined output. 90003 90002 A faster MCU can handle more processes at the same time and make calculations faster. But it’s heavily dependent on how efficient the firmware code is written. It’s similar to how you can have the exact same gaming gear (the MCU) as a professional gamer (the firmware code), but perform nowhere as good because you’re not as efficient and effective as the pro.90003 90002 Then you also have to consider that if the MCU is loaded with a lot of processes at the same time, it will slow down every other process including input latency. 90003 90002 Running a RGB effect can take a great toll on the MCU. It requires a lot of processing power and will delay other process. Just like when you live-stream playing a game with extreme graphics, your CPU will get overloaded and significantly decrease your frames per second. 90003 90002 Better turn off those RGB effects.90003 90019 USB polling versus PS / 2 interruption 90020 90002 The connection to the PC is another point of input lag. These days all keyboards use a USB connection, and previous generations used PS / 2. These two connections inherently work different. 90003 90002 PS / 2 is a interrupt type of connection. The keyboard will send a direct signal to the computer CPU interrupting any action it’s performing and telling it to execute the key input. 90003 90002 USB is a polling type of connection. The CPU will check every x amount of ms for input, just like the keyboard scan rate.90003 90002 The theory is that PS / 2 interruption is a faster input connection and USB polling. But in practice this does not have to be true anymore. It’s very hard to find any PS / 2 compatible keyboards and computers these days. Even if you make use of a keyboard that has it, it does not guarantee it’s faster than USB polling. 90003 90002 You can reread the keyboard scan rate section to further understand how USB polling works. It also applies to the connection to the PC. 90003 90002 In short: 90003 90049 90050 125hz (8ms) / 250hz (4ms) / 500hz (2ms) / 1000hz (1ms) are the most common frequencies that USB will scan.90051 90050 Always aim for 1000hz (1ms) polling 90051 90050 Input lag occurs when a signal is sent is not in sync with the scan. It will have to wait for the next scan cycle before it’s sent. 90051 90060 90019 Computer OS and Application software 90020 90002 Welcome to the biggest variable ever. If you read the MCU processing time section, then this same theory applies to your computer operating system (OS). When it receives the input it needs to process it to an output. Afterward, the application you’re using will process it to an output.90003 90002 This part entirely depends on the efficiency of the software code and how it handles input. In general, the less your CPU is burdened, the faster the input can be processed. 90003 90002 The difference in input will widely differ depending on the application you’re using. That’s why it’s not only the task of your input device to be fast, but also the developer. 90003 90002 90287 I am still in the process to get input benchmarks for different applications. I will update this section when there’s more information.90288 90003 90019 Monitor refresh rate 90020 90002 90287 Update 2019-10: We’ve been informed that the monitor refresh rate is not the full picture. On modern monitors the display needs to process the frames sent from the computer, which is a big factor in the total input lag. Since this article is focussed on the keyboard part we will refer to this excellent website for the full picture on monitor input lag: https://displaylag.com/display-database/. Credits to Tyler for pointing this out. 90288 90003 90002 Your monitor refresh rate does not directly influence your input latency, but it does influence the moment you will visually see the input.This indirectly adds to the latency and will influence your response. 90003 90002 You can find (gaming) monitors ranging from 60hz up to 240hz refresh rate. This means that the monitor is capable of refreshing the graphics from 60 up to 240 frames per second (fps). Though, your computer might not be able to reach 240 fps in the majority of games. 90003 90002 The most common monitors have 60hz refresh rate. That’s 60 frames per second, 1 frames every 17ms. If your moment of input comes in at the start of the refresh cycle, it will need to wait 17ms before you’ll see it.90022 In average, the input lag caused by a 60hz monitor will be 8.5ms. 90023 90003 90002 90305 90003 90002 On a 240hz monitor, with the ability to run a game at 240 frames per second, the input lag will average 2ms. 90003 90002 You can also calculate how much input lag your monitor causes. 90003 90002 1 / Game FPS * 1000 = maximum delay in milliseconds. If you divide it by 2, you’ll have the average. 90003 90004 How Wooting measures input latency 90005 90002 At Wooting we take input speed optimization very serious and are continuously pushing the limits but there are some limitations to what we can measure ourselves.We’re focused on what happens on the keyboard. 90003 90002 We use an oscilloscope to measure the frequency of the keyboard scan rate. This device can measure electric signals that vary over time. This is also how we can measure the latency with high accuracy. We have a bit more modern oscilloscope you can connect to your PC. 90003 90002 90320 90003 90002 The oscilloscope is connected to 1 of the 6 rows in the Wooting keyboard, when a scan happens it will trigger the electric signal. After the first row, it will scan through the 5 other rows and start back at 1 again.So to measure the scan rate, which is how fast the entire keyboard is scanned for input, we calculate the time in between two triggers on the oscilloscope. 90003 90002 90325 90003 90002 As you can see from the test results above, there’s a stable and frequent electric trigger happening every 0.96 milliseconds (ms). It’s expressed in 960 microseconds on the test result. 90003 90002 90022 This means that the keyboard scan rate is just under the 1ms (0.98ms) or at a 1000hz polling rate. 90023 90003 90002 This however only takes the scan rate into account and not any of other mentioned influence factors.90003 90002 We are working together with several parties to get accurate and more in-depth input latency results. 90003 90002 For instance, there’s a researcher, Sunjun Kim, that had tested the Wooting one from keyboard input signal to the PC receiving it within 4.2ms. He was also able to deduct the keyboard scanning + MCU calculation time to 2.5ms. 90003 90226 Testing tools on the PC are not reliable 90227 90002 As a final note to input latency and their influence factors. You can not rely on tools from the internet or PC to accurately measure input latency.These tools will only be able to measure the latency on the PC itself and are not capable of testing input lag coming from your device. 90003 90002 For the most accurate measurements, you’ll need to rely on external devices that monitor events. 90003 90019 Feedback 90020 90002 You’re welcome to leave feedback or contribute to this post. If you have more information, references or want to challenge some of the ideas mentioned, leave a comment behind or reach out to [email protected] 90003 90002 I do have to mention that this post did not go into extreme depth, to keep it light and easier to understand.90003 .