*** This bug is a duplicate of bug 415023 ***
https://bugs.launchpad.net/bugs/415023
I figured out a solution that works indefinitely, at least till an
update comes along anyway. Go to applicationssettingsXfce 4 Settings
ManagerPower Management and all settings for monitor and brightness to
never. So far this has worked, as long as I don't try to adjust the
brightness because that would trigger our little problem again which I don't
wanna do. So until there is a fix this works fine, actually I'll keep my
settings this way just in case. Hope this helps.
On Tue, Nov 3, 2009 at 4:04 AM, Samuel G. I. amuch...@gmail.com wrote:
*** This bug is a duplicate of bug 415023 ***
https://bugs.launchpad.net/bugs/415023
** Also affects: gnome-power-manager (Arch Linux)
Importance: Undecided
Status: New
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brightness autonomously toggles after increasing brightness
https://bugs.launchpad.net/bugs/460062
You received this bug notification because you are a direct subscriber
of a duplicate bug (via bug 415023).
Status in “gnome-power-manager” package in Ubuntu: New
Status in “gnome-power-manager” package in Arch Linux: New
Bug description:
Binary package hint: gnome-power-manager
This bug is very similar to bug 456057, but there are a couple of critical
differences that I think warrant a new bug:
a) The user in bug 4567057 found that he couldn't change brightness without
gnome-power-manager running. I can on my laptop.
b) Bug 456057 could apparently be reproduced without gnome-power-manager
(i.e. xubuntu/xfce), whereas I've found killing gnome-power-manager actively
solves my problem.
On to my bug:
I have an MSI Wind U100 laptop (model MS-N011 according to the sticker on
the bottom). The laptop has hot-keys to control the backlight brightness
(Fn+F4/F5). If I lower the brightness this way, everything is OK. If I raise
the brightness, something autonomously keeps toggling the brightness up/down
one level (or some fairly small amount). I am running a standard Gnome
desktop in Karmic UNR (dist-upgrade'd from Jaunty UNR). Things I have
observed:
1) The toggling starts soon after the gdm login screen starts after reboot
2) The toggling starts when I increase the brightness using the keyboard
3) The toggling starts if I execute .
/usr/share/acpi-support/key-constants; sudo acpi_fakekey $KEY_BRIGHTNESSUP
4) The toggling lasts while (many seconds;maybe 10-30) and usually stops on
its own. Just occasionally it doesn't ever stop on it's own.
5) The toggling stops within a few seconds if I VT-switch to a console
6) The toggling stops immediately if I kill `pidof gnome-power-manager`
7) The toggling doesn't start if I adjust the brightness using the keyboard
whilst in a VT console
8) The toggling doesn't start if I execute the commands from (3) above in a
VT console (and those commands have no effect)
9) The toggling doesn't start if I log into a Gnome failsafe session.
10) The toggling doesn't start if I log into an Xterm session.
11) I can adjust the brightness using the keyboard after having killed
gnome-power-manager.
12) If I restart gnome-power-manager, the brightness immediately shoots up
to full, and starts toggling between max and max-1.
I have gnome-power-manager package 2.28.1-0ubuntu1.
--
brightness autonomously toggles after increasing brightness
https://bugs.launchpad.net/bugs/460062
You received this bug notification because you are a member of Ubuntu
Desktop Bugs, which is subscribed to gnome-power-manager in ubuntu.
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