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Bug 224564 - Brightness keys don't adjust LCD brightness on PowerBook G4
Summary: Brightness keys don't adjust LCD brightness on PowerBook G4
Alias: None
Product: Fedora
Classification: Fedora
Component: gnome-power-manager
Version: 6
Hardware: powerpc
OS: Linux
Target Milestone: ---
Assignee: David Zeuthen
QA Contact:
Depends On:
TreeView+ depends on / blocked
Reported: 2007-01-26 14:41 UTC by Jared Smith
Modified: 2013-03-06 03:48 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2007-06-03 14:05:19 UTC

Attachments (Terms of Use)

Description Jared Smith 2007-01-26 14:41:47 UTC
Description of problem:

Version-Release number of selected component (if applicable):

gnome-power-manager-2.16.0-4.fc6 (assuming, of course, that it's
gnome-power-manager that's responsible for this -- I'm not sure if it is or not)

How reproducible:


Steps to Reproduce:
1. Press the Brightness keys (F1 and F2)
2. Watch the Gnome on-screen display pop on the screen, and see it act like it's
changing the LCD brightness
3. Notice that the LCD brightness doesn't change at all.
Actual results:

Nothing happens

Expected results:

The LCD brightness should go up or down, as appropriate.

Additional info:

I can manually change the LCD brightness by typing:

echo -n '127' > /sys/class/backlight/*/brightness
(where you obviously change 127 if you want it darker or brighter)

Comment 1 Jared Smith 2007-01-26 14:48:27 UTC
I don't know if this should be filed as a seperate bug or not, but the keyboard
backlight doesn't work at all, either.  (I'm happy to file it as a seperate bug
-- just let me know.)  I can get the keyboard backlight to work if I install the
pbbuttonsd application, but it's not part of Fedora Core or Fedora Extras.

Comment 2 Richard Hughes 2007-01-26 16:59:43 UTC
You need to use CVS HAL for the /sys/class/backlight stuff to work. There are
rpm's in the utopia repository if you are interested.

Comment 3 Jared Smith 2007-01-26 20:44:36 UTC
I'd be happy to try the RPMs from the utopia repo, if I could find them.  Google
doesn't seem to be able to find the repo for me.  Can you please point me to the

Comment 5 Jared Smith 2007-01-29 22:29:06 UTC
There wasn't a HAL RPM for PPC in the utopia repo, so I took the SRPM and
rebuild it.  Only one problem, it requires hal-info, which I can't seem to find

Comment 6 Richard Hughes 2007-01-29 22:38:08 UTC
OOps. Sorry, should be there now:

Comment 7 Jared Smith 2007-06-03 14:04:05 UTC
This is working in FC7, so I'm going to go ahead and close this bug.

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