Bug 24233 - Backlight does not power off when using KMS
Summary: Backlight does not power off when using KMS
Status: RESOLVED FIXED
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/Radeon (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: xf86-video-ati maintainers
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-09-30 13:34 UTC by Konstantin Svist
Modified: 2010-10-20 05:59 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Attachments
Xorg.0.log (192.28 KB, application/octet-stream)
2009-09-30 13:34 UTC, Konstantin Svist 		no flags Details
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Description Konstantin Svist 2009-09-30 13:34:05 UTC 
When I close the laptop lid, the backlight should turn off. I've verified that xfce4-power-manager (XFCE applet responsible for this) is running and sends the appropriate command (DPMSForceLevel(GDK_DISPLAY (), DPMSModeOff)) -- but the backlight stays on.
I've also tried with xset dpms force suspend which didn't do anything either.

As per recommendation from fedora-users list, I tried booting with nomodeset -- and backlight started turning off properly.

Running Fedora 11 with default driver (radeon)


lspci -vvv:

01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility X1400 (prog-if 00 [VGA controller])
	Subsystem: Dell Device 2003
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at d0000000 (32-bit, prefetchable) [size=256M]
	Region 1: I/O ports at ee00 [size=256]
	Region 2: Memory at efdf0000 (32-bit, non-prefetchable) [size=64K]
	[virtual] Expansion ROM at efd00000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: radeon
	Kernel modules: radeon
Comment 1 Konstantin Svist 2009-09-30 13:34:50 UTC 
Created attachment 29956 [details]
Xorg.0.log
Comment 2 Alex Deucher 2010-10-19 17:56:04 UTC 
Is this still an issue with a newer kernel?
Comment 3 Konstantin Svist 2010-10-19 18:34:04 UTC 
works fine in the recent versions
Comment 4 Julien Cristau 2010-10-20 05:59:50 UTC 
Closing then, thanks.

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