System micro stutters when alternating between backspace key and letter keys
v.redd.it/7soktwu3cxz41
v.redd.itPosted May 20, 2020, 1:47 PM UTC
15911
v.redd.itYou probably need to install a good display compositor and check if your free sync is latest or not.
I had a screen tearing issue using awesome and xfce versions of manjaro but fixed them by using Compton screen compositor
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Installing Compton actually fixed it. I never had this problem when I use KDE so should've realised it must've been something to do with the display rather than the kernel.
Thanks!
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Glad it worked, Kde has a built in compositor.
Generally all desktop environments except minimal ones or window managers have a built in screen compositor.
These screen compositors enable smooth display motion and window animation effects, blur effects etc.
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I used to have this issue a long time ago. It was with a cooler master keyboard and I think it had to do with N key rollover stuff. Also because cooler master hates linux
Cool to see proof from this video tho
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Try disabling N-key rollover in your keyboard, if you have that option
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Is that feature purely controlled by the hardware? I see other keyboards have some special key combination that allows you to change to 6KR, but there's no description of how to do it for the osmium in the manual (or anywhere on Google).
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You can also try our live chat tech support. Also the wiki, the official forum, or r/linuxquestions or r/linux4noobs here on Reddit.
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What's that test? I think I'm experiencing something similar and would like to check
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When you actually go on the website, the text will flash very quickly between red and cyan so it appears gray (at least for me). So for me it doesn't look exactly how it did in the video, but what was captured still shows the stuttering behavior I wanted, at least.
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Alternating between backspace and other keys causes my system to temporarily freeze, as I've tried to show in this video. When just typing regular letter keys, the vsync pattern is constant, but after I press backspace there is a stutter. Similarly when typing backspace and switching to a letter key.
I have a Gigabyte Osmium keyboard, which shows up as a bunch of different inputs when doing "sudo evtest":
/dev/input/event23: A1 Gaming keyboard
/dev/input/event24: A1 Gaming keyboard
/dev/input/event25: A1 Gaming keyboard
/dev/input/event26: Osmium Interface Mouse
/dev/input/event27: Osmium Interface
/dev/input/event28: Osmium Interface Consumer Control
<Backspace> is on event23, whilst normal keys are on event25. This must have something to do with it??
$ uname -a
Linux acer-manjaro 5.6.12-1-MANJARO #1 SMP PREEMPT Sun May 10 14:36:43 UTC 2020 x86_64 GNU/Linux
I've tried some older kernels (5.4.40-1 and 4.14.180-1) and the problem still occurs.
Any ideas on how I can fix this? The problem doesn't occur when I use my laptop keyboard.
What is your display environment? (GNOME? KDE?)
XFCE. I'm going to try some different DE's via live CD today, and also check if it reproduces in the XFCE live CD.