Public bug reported: Binary package hint: hal
I file this bug against hal as this is probably where it will end up anyway. After loading the fujitsu-laptop module (which creates a backlight interface under /sys/class/backlight/fujitsu-laptop), gpm believes it can handle backlight settings. However, the handling is very weird as setting backlight to 100 might result in 50% brightness, 30, results in 100% and so on. I thought this might be related to the fact that the xbacklight tool wasn't working properly, so after a suggestion from the xorg mailing list I patched the intel driver so that it would be aware of the fujitsu-laptop interface. After this, xbacklight works perfectly fine (much better than gpm/hal worked), but gpm/hal stopped handling backlight alltogether. That is, gpm still believes it can handle the backlight (as hal finds the interface, I presume), but changing it results in nothing. For the record, the patch against the intel driver is this: diff -Naur xserver-xorg-video-intel-2.2.1/src/i830_lvds.c xserver-xorg-video-intel-2.2.1-new/src/i830_lvds.c --- xserver-xorg-video-intel-2.2.1/src/i830_lvds.c 2008-02-20 22:41:25.000000000 +0100 +++ xserver-xorg-video-intel-2.2.1-new/src/i830_lvds.c 2008-03-01 11:37:09.000000000 +0100 @@ -68,6 +68,7 @@ "thinkpad_screen", "acpi_video1", "acpi_video0", + "fujitsu-laptop", NULL, }; ** Affects: hal (Ubuntu) Importance: Undecided Status: New -- gnome-power-manager does not handle backlight properly https://bugs.launchpad.net/bugs/197253 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs