Bug 582267

Summary: KMS: [Mobility X1600] Laptop LCD too dark after resuming from console blank
Product: [Fedora] Fedora Reporter: Yanko Kaneti <yaneti>
Component: xorg-x11-drv-atiAssignee: X/OpenGL Maintenance List <xgl-maint>
Status: CLOSED INSUFFICIENT_DATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: low    
Version: 13CC: xgl-maint
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Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2011-06-02 12:21:19 EDT Type: ---
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Description Flags
2.6.33.2-43.fc13.i686.PAE dmsg none

Description Yanko Kaneti 2010-04-14 10:19:18 EDT
Created attachment 406527 [details]
2.6.33.2-43.fc13.i686.PAE dmsg

Description of problem:
With KMS the LCD seem to resume into its lowest brightness setting after the kernel screen saver has blanked it.

This is a kernel issue but as I understand it its preferable to file these under -ati for now. Sorry if thats not the case.

kernel 2.6.33.2-43.fc13.i686.PAE

01:00.0 VGA compatible controller [0300]: ATI Technologies Inc M56P [Radeon Mobility X1600] [1002:71c5]

This hw also suffers from bug 571046 with the latest fc12 and fc13 kernels. I've also tried a latest rawhide kernel where the pll issue is not present but the brightness problem with KMS is the same.

System Information
        Manufacturer: Hewlett-Packard
        Product Name: HP Compaq nx9420 (EV271AA#ABB)
        Version: F.1B

Attaching a dmesg  (with radeon.new_pll=0  to workaround bug 571046)
Comment 1 Bug Zapper 2011-06-02 11:23:26 EDT
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