Bug 15572 - LVDSSetBacklight turns off backlight on RS690
Summary: LVDSSetBacklight turns off backlight on RS690
Status: RESOLVED FIXED
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/radeonhd (show other bugs)
Version: unspecified
Hardware: x86 (IA32) Linux (All)
: medium normal
Assignee: Luc Verhaegen
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2008-04-17 18:50 UTC by Kevin Berry
Modified: 2008-04-18 08:03 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Attachments
Xorg configuration file which produces the result. (1.86 KB, text/plain)
2008-04-17 18:50 UTC, Kevin Berry 		no flags Details
Xorg log file of radeonhd driver that turns off backlight. (42.28 KB, text/x-log)
2008-04-17 18:52 UTC, Kevin Berry 		no flags Details
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Description Kevin Berry 2008-04-17 18:50:24 UTC 
Created attachment 15992 [details]
Xorg configuration file which produces the result.

Current git version of radeonhd at the time of this writing ends up turning off my backlight on Acer Extensa 5420 notebook with RS690M chip.  I managed to workaround this by disabling function LVDSSetBacklight in rhd_lvtma.c (I just put a return at the top of it.)  Not sure what all is needed to debug this issue, but I am attaching my xorg.conf and Xorg.0.log to this ticket.
Comment 1 Kevin Berry 2008-04-17 18:52:46 UTC 
Created attachment 15993 [details]
Xorg log file of radeonhd driver that turns off backlight.
Comment 2 Egbert Eich 2008-04-18 08:03:22 UTC 
Should be fixed with commit 0442f2d5b2e23648b51bbf659f5bcd874b2b438a.

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