1850318 - Firefox using llvmpipe instead of hardware GPU on Wayland

Status: UNCONFIRMED

(Core :: Graphics, defect, P3)

Description

[iris]

Attachment: about_support.txt

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/117.0

Steps to reproduce:

Installed version 117 from the mozillateam PPA, and opened Firefox with MOZ_ENABLE_WAYLAND set.

Actual results:

In about:support, it shows that Firefox is using llvmpipe as its GPU for WebGL, instead of the builtin one.

Expected results:

Firefox would prioritize the hardware GPU correctly.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Graphics' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Martin Stránský [:stransky] (ni? me)]

Good. Please:

1. test Mozilla binaries:
   https://fedoraproject.org/wiki/How_to_debug_Firefox_problems#Testing_Mozilla_binaries

2. Run Firefox with MOZ_GFX_DEBUG env variable and attach the log here:

MOZ_GFX_DEBUG=1 firefox > log.txt 2>&1

Thanks.

Comment 3

[iris]

Attachment: log.txt

The Mozilla binary seems to work fine - it detects the GPU correctly. I've attached the log.txt for the Firefox I have installed currently.

Comment 4

[:gerard-majax]

mozillateam PPA is not maintained by us as much as I can tell, and it's deb package not snap

Comment 5

[:gerard-majax]

at best it could impact snap packaging with wayland

Comment 6

[Martin Stránský [:stransky] (ni? me)]

Looks like mozillateam PPA is missing some gfx libraries so GL is not detected properly.