Graphical glitching in KDE with X11
Categories
(Core :: Widget: Gtk, defect)
Tracking
()
People
(Reporter: arusahni, Unassigned)
Details
Attachments
(2 files)
firefox.png
User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:88.0) Gecko/20100101 Firefox/88.0
Steps to reproduce:
After the Dev Edition updated to 88, it appears that WebRender is enabled by default for Linux systems with Intel on KDE and X11. This glitch occurs when I launch the browser.
Actual results:
The content area of the browser window glitches. Darker colors appear to show my desktop background with some level of transparency. There's a larger rectangular area of the center of the window that doesn't render anything. If I do anything that draws over the area (i.e. minimize a foreground window), it captures a few frames of the animation. The non-browser chrome (e.g., titlebars, window-manager-managed menus render without issue). Dragging the window via alt+click renders the content without the glitches (but transparent due to the desktop effect I have assigned to it).
I'm able to work around this by setting gfx.webrender.force-disabled to false.
Expected results:
The browser should render without glitches. I should be able to view webpages and navigate through Firefox.
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Comment 2•4 years ago
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The Bugbug bot thinks this bug should belong to the 'Core::Widget: Gtk' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.
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Comment 3•4 years ago
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Thanks for the report!
The MOZ_X11_EGL=1 environment variable currently suffers from a regression.
bug 1699864 fixes it for Mesa. (Nvidia is still broken.)
The fix would need to be backported to Beta.
Thanks for narrowing this down! For whatever reason, the terms I searched for did not surface that ticket :)
Description
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