You have been subscribed to a public bug:
Binary package hint: hal
The brightness applet now causes the screen to flicker on a Toshiba
Satellite A105-S4254. When using the applet, the screen flashes on and
off between two brightnesses. Going through it a step at a time shows
that the brightness appears to wrap around a bunch and flicker back and
forth. (With a switch every 3-4 clicks)
I know the screen is capable of more than two settings because the Fn-keys
worked on the Windows side and I can cat from and echo into
/proc/acpi/video/GFX0/LCD/brightness to change things. (Although the latter
isn't very uniform. I don't remember if the settings are the same as the
Windows ones; haven't booted there for a while. Will check sometime later.)
-- For the record, the Fn-keys report Fn-less keycodes in Gutsy, and in Feisty
they blanked the screen and made it come back in about half a second with no
change in brightness.
When unplugging the AC cord, the screen flickers a ton and then settles
on the lower setting. This hurts my eyes a lot. I can work around this
by making it only dim the screen by 7%. Except that the dim screen when
idle option still makes it flicker, and I'd like it to work.
The brightness applet does not appear to affect
/proc/acpi/video/GFX0/LCD/brightness at all.
In Feisty, it didn't work at all.[1]
The contents of /proc/acpi/video/GFX0/LCD/brightness:
levels: 75 35 10 25 35 50 60 75 90 100
current: 100
[1] Actually, the bug may have existed in a form in Feisty as well:
Background: So, when I first installed Feisty, the brightness applet did
absolutely nothing. In fact it had a little crossed out sign. I added
little scripts in /etc/acpi/{ac,battery}.d to brighten and dim the
screen with /proc/acpi/video/GFX0/LCD/brightness and all was well.
Reasonably.
Some time later I noticed that it would flicker a bit when I pulled the
cord, but I paid little attention to it. It wasn't as bad as the Gutsy
default. Also, the little brightness notify thing didn't appear on the
screen then. (The popup was what prompted me to play with the brightness
applet in Gutsy.)
My guesses are that what changed between the two events is hal, because
I at some point enabled feisty-backports and there is a new hal in
there. Although, the brightness popup didn't appear in Feisty. I don't
know if that's because the brightness applet still didn't work or if the
old gnome-power-manager didn't display those. (And doing a downgrade and
then an upgrade and so on is kind of annoying.)
(Because of that, and the fact that the brightness applet's source code shows
that it's just a dbus frontend to hal, I set the package to hal instead of
gnome-power-manager.)
** Affects: gnome-applets (Ubuntu)
Importance: Undecided
Status: Incomplete
** Tags: brightness toshiba
--
Brightness applet flickers on Toshiba Satellite A105 (A105-S4254)
https://bugs.launchpad.net/bugs/155030
You received this bug notification because you are a member of Ubuntu Desktop
Bugs, which is subscribed to gnome-applets in ubuntu.
--
desktop-bugs mailing list
desktop-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
