Bug 582267 - KMS: [Mobility X1600] Laptop LCD too dark after resuming from console blank
KMS: [Mobility X1600] Laptop LCD too dark after resuming from console blank
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-ati (Show other bugs)
All Linux
low Severity low
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Assigned To: X/OpenGL Maintenance List
Fedora Extras Quality Assurance
Depends On:
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Reported: 2010-04-14 10:19 EDT by Yanko Kaneti
Modified: 2011-06-02 12:21 EDT (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2011-06-02 12:21:19 EDT
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RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use) dmsg (43.33 KB, text/plain)
2010-04-14 10:19 EDT, Yanko Kaneti
no flags Details

  None (edit)
Description Yanko Kaneti 2010-04-14 10:19:18 EDT
Created attachment 406527 [details] 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.


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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