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chovy

Banned

Registered: 2020-12-29

Posts: 62

How to turn off vsync in Gnome?

I'm getting glitches when screen recording with Kazam using Gnome/Xorg. The browser just flickers between tabs the entire video.

Someone said to disable vsync but that was for KDE. Not sure how to do it in Gnome/Xorg.

chovy

Banned

Registered: 2020-12-29

Posts: 62

Re: How to turn off vsync in Gnome?

```
Graphics:  Device-1: Intel Iris Plus Graphics G7 vendor: Lenovo driver: i915 v: kernel bus ID: 00:02.0 chip ID: 8086:8a52
           Device-2: Chicony Integrated Camera type: USB driver: uvcvideo bus ID: 3-6:3 chip ID: 04f2:b6cb serial: <filter>
           Display: x11 server: X.org 1.20.10 compositor: gnome-shell driver: intel resolution: <xdpyinfo missing>
           OpenGL: renderer: Mesa Intel Iris Plus Graphics (ICL GT2) v: 4.6 Mesa 20.2.3 direct render: Yes
Audio:     Device-1: Intel Smart Sound Audio vendor: Lenovo driver: sof-audio-pci alternate: snd_hda_intel,snd_sof_pci
```

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,351

Re: How to turn off vsync in Gnome?

If xf86-video-intel is installed, remove it. And maybe use something more modern and actively maintained for screen recording like obs-studio or so.

To literally answer the question you cannot do so on demand on gnome but I also highly doubt that to be the underlying issue.

Last edited by V1del (2020-12-29 10:22:40)

chovy

Banned

Registered: 2020-12-29

Posts: 62

Re: How to turn off vsync in Gnome?

I get the same issue with just ffmpeg which is what everything uses under the hood.

kokoko3k

Member

Registered: 2008-11-14

Posts: 2,470

Re: How to turn off vsync in Gnome?

*Double post*

Last edited by kokoko3k (2020-12-29 11:07:40)

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kokoko3k

Member

Registered: 2008-11-14

Posts: 2,470

Re: How to turn off vsync in Gnome?

it is not the vsync, it is ffmpeg and his x11grab versus the compositor.
I think you've to disable the compositor, but i don't know how to do it under gnome.
https://github.com/yshui/picom/issues/1 … -467951580

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Help me to improve ssh-rdp !
Retroarch User? Try my koko-aio shader !

chovy

Banned

Registered: 2020-12-29

Posts: 62

Re: How to turn off vsync in Gnome?

I removed that driver and couldn't get into the desktop. I re-installed it. Is there some other driver I need?

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,351

Re: How to turn off vsync in Gnome?

You need to remove config files referencing it if you've created any, and FWIW I have no issues recording with a compositor on in KDE and the nvidia drivers. xf86-video-intel is generally buggy with such usecases and I wouldn't be surprised if the issue stems from there.

chovy

Banned

Registered: 2020-12-29

Posts: 62

Re: How to turn off vsync in Gnome?

i tried it with xfce and it works fine.