https://bugs.freedesktop.org/show_bug.cgi?id=73528
Priority: medium Bug ID: 73528 Assignee: dri-devel@lists.freedesktop.org Summary: Deferred lighting in Second Life causes system hiccups and screen flickering Severity: major Classification: Unclassified OS: Linux (All) Reporter: sonichedgehog_hyperblast00@yahoo.com Hardware: x86-64 (AMD64) Status: NEW Version: git Component: Drivers/DRI/R600 Product: Mesa
I compiled Mesa with libdrm from their GIT repositories (10.1, commit 2dc35a619c50139d07ad96fc4dfe456e5811c84e). I started up the Second Life viewer through it (Kokua x64, 3.6.12.30743, Dec 12 2013 05:51:00) and logged in.
Upon enabling Advanced Lighting Model from Preferences - Graphics, the system froze and the screen started flickering, turning black then recovering every few seconds. The scene also got covered in pink pixels, meaning it also failed to render correctly. I was barely able to move the mouse pointer and shut the viewer down. Once I did, everything returned to normal.
This does not happen with Mesa 9.2.3, and other Graphics options in the viewer work fine (like "Basic shaders" or "Atmospheric shaders"). Shadows were disabled and likely not a cause.
If someone has Second Life, please try the deferred lighting system under the 10.1 development version of Mesa. Currently, I don't have any more information on the problem apart from having experienced the described symptoms.