Bug 486027 - Display is always dimmed to 7 on power event
Summary: Display is always dimmed to 7 on power event
Keywords:
Status: CLOSED DUPLICATE of bug 475850
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: hal
Version: 5.3
Hardware: x86_64
OS: Linux
low
medium
Target Milestone: rc
: ---
Assignee: David Zeuthen
QA Contact: desktop-bugs@redhat.com
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2009-02-17 22:22 UTC by Michael Solberg
Modified: 2013-03-06 03:57 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2009-03-11 16:57:09 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Michael Solberg 2009-02-17 22:22:18 UTC 
Description of problem:

Every time there's a "power event" like the power chord being unplugged or plugged, my Lenovo T61's display is dimmed to half it's brightness, even though I've set both "ac_brightness" and "battery_brightness" to 100.

Version-Release number of selected component (if applicable):
gnome-power-manager-2.16.0-10.el5
kernel-2.6.18-128.1.1.el5

How reproducible:
100%

Steps to Reproduce:
1. Ensure that the following gconf keys are set to 100:
  * /apps/gnome-power-manager/ac_brightness
  * /apps/gnome-power-manager/battery_brightness
2. Either unplug or re-plug the AC.
3. Check brightness in /proc/acpi/ibm/brightness
  
Actual results:
  * Screen is dim
  * /proc/acpi/ibm/brightness shows a Level of 7

Expected results:
  * Screen is bright
  * /proc/acpi/ibm/brightness shows a Level of 15


Additional info:
  Screen also dims when screensaver activates
Comment 1 Michael Solberg 2009-02-17 22:35:12 UTC 
Updating platform
Comment 2 Michael Solberg 2009-02-19 15:54:30 UTC 
Turns out this is actually a problem in HAL.

The property laptop_panel.num_levels is set to 7 on my panel.  If I do this:

hal-set-property --udi /org/freedesktop/Hal/devices/acpi_brightness --key laptop_panel.num_levels --int 15

Then gnome-power-manager behaves as expected.

Michael.
Comment 3 Richard Hughes 2009-03-11 16:57:09 UTC 

*** This bug has been marked as a duplicate of bug 475850 ***
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