[Bug 26927] New: Blank LVDS Dell Studio 17

[Bug 26927] New: Blank LVDS Dell Studio 17

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=26927

           Summary: Blank LVDS Dell Studio 17
           Product: DRI
           Version: XOrg CVS
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@lists.sourceforge.net
        ReportedBy: dm@mirabel-sil.com


When using linux-next-20100305 with drm/radeon/kms, the LVDS panel of my laptop
(Dell Studio 17) gets blank, and occasionally displays some brief artifacts
when the KDM login screen supposed to pop up.

Maybe it needs some quirks (as Alex Daucher did for Dell Studio 15) ?


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[Bug 26927] Blank LVDS Dell Studio 17

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=26927





--- Comment #1 from Alex Deucher <agd5f@yahoo.com>  2010-03-06 09:26:48 PST ---
Does radeon.new_pll=0 fix it?


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[Bug 26927] Blank LVDS Dell Studio 17

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http://bugs.freedesktop.org/show_bug.cgi?id=26927





--- Comment #2 from Damien Mir <dm@mirabel-sil.com>  2010-03-06 09:56:42 PST ---
(In reply to comment #1)
> Does radeon.new_pll=0 fix it?
> 

No it doesn't, same result.

Note that KMS with mainline 2.6.33 is OK. Seems to occur since recent merges in
linux-next.


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[Bug 26927] Blank LVDS Dell Studio 17

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=26927





--- Comment #3 from Alex Deucher <agd5f@yahoo.com>  2010-03-06 15:08:11 PST ---
Can you attach the output of lspci -vnn and your video bios?  To dump your
video bios do the following (as root):
cd /sys/bus/pci/devices/<pci bus id>
echo 1 > rom
cat rom > /tmp/vbios.rom
echo 0 > rom


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[Bug 26927] Blank LVDS Dell Studio 17

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=26927





--- Comment #4 from Damien Mir <dm@mirabel-sil.com>  2010-03-06 19:28:48 PST ---
Created an attachment (id=33822)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=33822)
requested vbios dump


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[Bug 26927] Blank LVDS Dell Studio 17

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=26927





--- Comment #5 from Damien Mir <dm@mirabel-sil.com>  2010-03-06 19:30:02 PST ---
Created an attachment (id=33823)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=33823)
lspci output


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[Bug 26927] Blank LVDS Dell Studio 17

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=26927


Damien Mir <dm@mirabel-sil.com> changed:

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




--- Comment #6 from Damien Mir <dm@mirabel-sil.com>  2010-03-11 19:14:54 PST ---
Somehow I cannot reproduce with 2.6.34rc1, or even with next + glisse/drm-next.

I am closing the bug report.


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