Using a HD 4670 still possible?

[Michel Dänzer]

On 14.09.2014 03:13, Christoph Brill wrote:
> Am 08.09.2014 03:41 schrieb "Michel Dänzer" <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 Dänzer            |                  http://www.amd.com
Libre software enthusiast          |                Mesa and X developer