Ubuntu – Firefox with nvidia-driver-396 driver has no 2D acceleration

driversfirefoxgraphicsnvidia

I'm experiencing an issue with Firefox on Ubuntu 18.04 having no 2D acceleration, 3d seems to work fine, but scrolling, switching tabs, and watching YouTube and Netflix has noticeable tearing. I have the nvidia-driver-396 driver. The same issues are present with the nvidia-driver-390 driver. OpenGL games work fine, so it's not OpenGL. And I have Hardware Acceleration enabled in Firefox settings.
My GPU is an Titan Xp, and Ubuntu is up-to-date and I have third party properaty things enabled on install.(for audio codecs)

Anyone know what might be the issue?

Thanks!

Best Answer

I managed to fix this by setting the option layers.acceleration.force-enabled to true in Firefox. Apparently my driver is blocked by my platform, no idea why.

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Simple guide to solve this annoying problem :)

Create file:
```
/etc/profile.d/Tearing.sh
```
Insert this code:
```
export __GL_YIELD="USLEEP"
```
Then make it executable with:
```
chmod +x /etc/profile.d/Tearing.sh
```
Once that's done, reboot or press ctrl + alt + F2, login and run sudo service lightdm restart Or restart what ever your display manager is.

The GL_YIELD worked for me, and now vertical sync appears to be working as it should.

(https://www.kubuntuforums.net/showthread.php?63946-No-vertical-sync-with-NVIDIA&highlight=tearing)

Ubuntu – My new Nvidia card has screen tearing in games

Two steps that solved the problem for me on my gtx 960 on Kubuntu 14.04

1st try adding this to your xorg.conf file @ /etc/X11/

Section "Screen"

Option "metamodes" "nvidia-auto-select +0+0 {ForceFullComposition = On}"

If that works only sometimes or distorts clarity on internet or game video then add this and it should make a big difference and hopefully permanent fix.

Section "Screen"

Option "TripleBuffer" "1"

You can check out my research here-askubuntu.

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