[Bug 38478] New: r600g fails to identify the screen refresh rate

[Bug 38478] New: r600g fails to identify the screen refresh rate

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=38478

           Summary: r600g fails to identify the screen refresh rate
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: steve@sk2.org


Created an attachment (id=48172)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=48172)
Xorg log file

Hi,

With the current git tree (up to 2fe39b46e73aea37152777fe11d489e0b1bc3f92) I'm
only getting 10fps running glxgears on my HD4650; other 3D programs exhibit the
same problem.

This is an improvement over previous versions of r600g on my system: before
7.10.3 the driver causes constant freezes, and 7.10.3 works but only at 0.8fps
(constantly).

I'm attaching the Xorg log and [drm] info from my kernel log. Let me know what
other information you need and I'll happily provide it!

Regards,

Stephen

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[Bug 38478] r600g fails to identify the screen refresh rate

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=38478

--- Comment #1 from Stephen Kitt <steve@sk2.org> 2011-06-19 14:22:50 PDT ---
Created an attachment (id=48173)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=48173)
[drm] lines from dmesg

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[Bug 38478] r600g fails to identify the screen refresh rate

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=38478

Alex Deucher <agd5f@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #48172|text/x-log                  |text/plain
          mime type|                            |
  Attachment #48172|0                           |1
           is patch|                            |

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[Bug 38478] r600g fails to identify the screen refresh rate

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=38478

--- Comment #2 from Alex Deucher <agd5f@yahoo.com> 2011-06-19 14:47:05 PDT ---
Please attach the output of glxinfo.

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[Bug 38478] r600g fails to identify the screen refresh rate

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=38478

--- Comment #3 from Stephen Kitt <steve@sk2.org> 2011-06-19 14:51:40 PDT ---
Created an attachment (id=48174)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=48174)
glxinfo

Here's the information provided by glxinfo.

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[Bug 38478] r600g fails to identify the screen refresh rate

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=38478

--- Comment #4 from Alex Deucher <agd5f@yahoo.com> 2011-06-21 10:48:14 PDT ---
What kernel are you using?

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[Bug 38478] r600g fails to identify the screen refresh rate

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=38478

--- Comment #5 from Stephen Kitt <steve@sk2.org> 2011-06-21 11:41:50 PDT ---
I'm running Debian's linux-image-2.6.39-2-686-pae 2.6.39-2, which corresponds
to 2.6.39.1.

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[Bug 38478] r600g fails to identify the screen refresh rate

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=38478

Stephen Kitt <steve@sk2.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID

--- Comment #6 from Stephen Kitt <steve@sk2.org> 2011-08-13 16:06:22 PDT ---
I've just figured out what was going on - I noticed after rebooting (to check
whether the bug was fixed in 3.0) that the IRQ used by my Radeon card was
disabled. It's shared with some of the USB ports and an interrupt arrives
before all the drivers have initialised correctly. Reloading the uhci-hcd
module re-enables the interrupt and restores full functionality!

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