<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - gfx corruption on windowed 3d-apps running on dGPU" href="https://bugs.freedesktop.org/show_bug.cgi?id=101691#c34">Comment # 34</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - gfx corruption on windowed 3d-apps running on dGPU" href="https://bugs.freedesktop.org/show_bug.cgi?id=101691">bug 101691</a> from <a class="email" href="mailto:ben@bwidawsk.net" title="Ben Widawsky <ben@bwidawsk.net>"> Ben Widawsky</a> <pre>Just some thoughts... The corruption are x-tiled cachelines, looks like stale ones. I don't know what the vertical lines are. It looks to me like the memory is just misbehaving. I wonder if when you plug in the machine if BIOS tries to crank up DDR, or Graphics voltage. Is there some BIOS setting or update to tweak what happens on AC? Is this desktop environment using sprite planes? If the compositor is using all one plane (which I think is likely), and display was at fault, everything would be corrupt. So please see if there is anything that can be done in BIOS to tell it to not behave differently when on AC.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>