From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 41732] New: [radeon] KMS (and X.org) detect wrong outputs
Date: Thu, 25 Aug 2011 16:53:03 GMT
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https://bugzilla.kernel.org/show_bug.cgi?id=41732

           Summary: [radeon] KMS (and X.org) detect wrong outputs
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.1-rc3
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
        AssignedTo: drivers_video-dri@kernel-bugs.osdl.org
        ReportedBy: niels_ole@salscheider-online.de
        Regression: No


On my notebook, 6520G (mobile A6 APU), KMS detects a screen on VGA-0 although
there is no attached. Because of that it chooses a lower resolution than the
internal display's native resolution. The selected mode causes the internal
display to flicker, though.

In dmesg, I can see the following:

[drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting
[drm:atom_execute_table_locked] *ERROR* atombios stuck executing E3E6 (len
2585, WS 4, PS 4) @ 0xEAD0

Other issues I have with this :
- xrandr reports a size of 0x0 inches for the internal display
- the internal display uses only 6 bit/pixel and there seems to be no way to
enable dithering
- the brightness controls do not work although there is a sysfs acpi interface
that gets updated
- the display does not come back on after standby

These issues may be unrelated and I will create further bug reports if so, but
maybe they give a hint concerning this issue.

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