Using a HD 4670 still possible?

[Alex Deucher]

On Wed, Sep 17, 2014 at 3:30 AM, Michel Dänzer <michel at daenzer.net> wrote:
> 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?
>

Also mention what chipset your system uses and whether the card is AGP or not.

Alex