Bug 27106 - Possibly bad BIOS in Lenovo T500
Summary: Possibly bad BIOS in Lenovo T500
Status: RESOLVED DUPLICATE of bug 27083
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/Radeon (show other bugs)
Version: 7.5 (2009.10)
Hardware: Other All
: medium normal
Assignee: xf86-video-ati maintainers
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-03-16 04:33 UTC by Christian Schmidt
Modified: 2010-03-16 06:56 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Attachments
Patch to detect Lenovo T500 and override pll parameters (2.04 KB, patch)
2010-03-16 04:33 UTC, Christian Schmidt 		no flags Details | Splinter Review
BIOS from Lenovo T500 (63.00 KB, application/octet-stream)
2010-03-16 04:34 UTC, Christian Schmidt 		no flags Details
View All

Description Christian Schmidt 2010-03-16 04:33:27 UTC 
Created attachment 34103 [details] [review]
Patch to detect Lenovo T500 and override pll parameters

Commit 86cb2bbfda2cf402aee46779ee90bbb7d915482b drm/radeon/kms: use lcd pll limits when available from drm-radeon-testing git breaks on Lenovo T500 laptop. Immediately on KMS init the screen goes white with colored lines, then fades to black.

BIOS reports 45000/60000 for LCD min/max, while normal min/max is 90000/120000. Forcing the normal values over the lcd values makes things work.
Comment 1 Christian Schmidt 2010-03-16 04:34:11 UTC 
Created attachment 34105 [details]
BIOS from Lenovo T500
Comment 2 Alex Deucher 2010-03-16 06:56:08 UTC 

*** This bug has been marked as a duplicate of bug 27083 ***

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