Public bug reported: 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: hal (Ubuntu) Importance: Undecided Status: New -- 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 Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs