<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - 2500U: Graphics corruption on kernel 5.2" href="https://bugs.freedesktop.org/show_bug.cgi?id=111122#c6">Comment # 6</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - 2500U: Graphics corruption on kernel 5.2" href="https://bugs.freedesktop.org/show_bug.cgi?id=111122">bug 111122</a> from <a class="email" href="mailto:nicholas.kazlauskas@amd.com" title="Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>"> Nicholas Kazlauskas</a> <pre>(In reply to Brian Schott from <a href="show_bug.cgi?id=111122#c3">comment #3</a>) > I think that I'm seeing something related with my 2700u Inspiron 7375. > > If I have compositing enabled in XFWM4, the system will immediately stop > responding after logging in with LightDM. If the window manager compositing > is disabled, I'm able to log in, but then there is graphical corruption. > > With git bisect I traced the problem back to > <a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/">https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/</a> > ?h=df8368be1382&id=df8368be1382b442384507a5147c89978cd60702 > > I can edit the source file, and by only changing the KMS_DRIVER_MINOR > definition from 32 to 30, get the system working correctly with 5.2.0. Your issue in particular is likely unrelated - it's an issue in userspace. The bisected commit is the one that allowed xf86-video-amdgpu to start scanning out DCC compressed buffers that mesa produces, with the caveat that mesa needs a hook on present for the re-tile. My guess is that hook isn't running when you aren't using "compositing". I'm not sure if mesa or xf86-video-amdgpu have options yet to disable DCC or not, but for that particular setup you'd probably want it disabled.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>