On 14.09.2014 03:13, Christoph Brill wrote: > Am 08.09.2014 03:41 schrieb "Michel D?nzer" <michel at daenzer.net > <mailto:michel at daenzer.net>>: > > On 07.09.2014 01:01, Christoph Brill wrote: > >> > >> > >> I'm currently trying to get a HD 4670 aka RV730 XT to work against X.org > >> 1.16, xf86-video-ati 7.4.0 on a Linux 3.16.1. > >> > >> Can anyone tell me: Should this card be able to handle an average Gnome > >> desktop? > > > > > > Of course. > > > > > > > >> The problem was: 3D rendering did not work at all. > >> > >> Starting gdm lead to hanging Xorg. Calling glxgears on a twm session > >> just rendered a black window, which stayed even if the process was > >> killed by CTRL+C. I managed to get glxgears do do its job by setting > >> "vblank_mode=0". > >> > >> I guessed my card does not like to play along with vsync at all. So I > >> went ahead to disable vsyncing (tearing is still better than no display > >> at all). Setting it globally in /etc/drirc seems to get glxgears > running. > >> > >> Testing Xonotic on twm showed, that the card was now able to handle 3D. > >> But: gdm still was extremely sluggish and eventually froze. Starting > >> gnome-shell directly from startx gets me to the desktop, but any action > >> freezes the process. > >> > >> Is there still hope for this card or should I get rid of it? > > > > > > It sounds like there's a problem with interrupt processing on your > system. Please provide the dmesg output. You might try > disabling/enabling MSI to see if that works around the problem. > > Thank you so much for this hint! Booting using radeon.msi=0 finally > brings the system into a usable state. The dmesg of a default boot (i.e. > radeon.msi=-1) is available at http://pastebin.com/gS1xHYPc
Can you file a bug report at https://bugs.freedesktop.org/enter_bug.cgi?product=DRI component "DRM/Radeon" and attach the dmesg output there? -- Earthling Michel D?nzer | http://www.amd.com Libre software enthusiast | Mesa and X developer
