Screen Tearing Ubuntu 18.04
For Firefox do this:
- Type "about:config" on the address bar.
- Search for
layers.acceleration.force-enabled
(default isfalse
). - Change it to
true
by double-clicking. - Save and restart Firefox.
Make sure that you have hardware acceleration enabled in your browser and supported by your GPU driver.
Google Chrome / Chromium
- Go to
Settings
->Advanced
->System
- Check
Use hardware acceleration when available
For debug open this URL (paste it into your address bar):
chrome://gpu/
Firefox
- Go to
Preferences
->Performance
- Un-check
Use recommended performance settings
- Check
Use hardware acceleration when available
For debug open this URL (paste it into your address bar):
about:support
and look for Graphics
info
Checking GPU drivers
To check what driver is in use open terminal and type:
lspci -v | less
then press /, type VGA
and press ENTER
In the VGA section you'll see your video card model, available drivers and drivers in-use.
Example:
01:00.0 VGA compatible controller: NVIDIA Corporation [GeForce] (rev a1) (prog-if 00 [VGA controller]) (...) Kernel driver in use: nvidia Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia
Depending on your graphics card you may want to switch between open source and proprietary driver.
Open source drivers are better for 2D rendering, but have lower performance for 3D acceleration.
Switching drivers
Go to System settings
-> Updates
-> Settings
-> Additional drivers
.
You should be able to also open this tab via terminal with:
/usr/bin/python3 /usr/bin/software-properties-gtk --open-tab 2
Then you can switch between drivers, then reboot your PC.
Intel graphics
For Intel integrated graphics go to https://01.org/linuxgraphics/downloads/
NVIDIA screen tearing
You may find these answers useful:
- https://askubuntu.com/a/992333/950482
- https://askubuntu.com/a/1110975/950482
There is a video here that fixed it for me. The short version for Ubuntu 19, is that I had to open "Startup Applications" and add a new item with the command:
nvidia-settings --assign CurrentMetaMode="nvidia-auto-select +0+0 { ForceFullCompositionPipeline = On }"