Information from duplicate bug #368506: 1) This bug exists in Karmic Alpha 2 (see #5 below)
2) I just newly installed Ubuntu 9.04 on my Asus B80A Laptop. There I got a problem with the display brightness setting. During the bootup the display gets a lot darker and when I enter the Desktop the function keys only work between an almost black setting and a very dark one. With the brightness applet all brightness settings can be accessed (though there is heavy flickering involving during the change of brightness) 3) This happens on my Asus x5dij, too. However, i think the issue with the brightness-keys has nothing to do with gnome-power-manager, since I incidentally discovered a workaround (see bug #399675). Also, setting the brightness by writing to /sys/devices/virtual/backlight/acpi_video0/brightness works perfectly. I assume the flickering occurs because before every brightness change the value is first set to the darkest and then to the desired one. 4) the work around: A workaround is unloading/reloading the "video" kernel module, but after this the brightness-changing-OSD doesn't appear anymore and I guess there may be other issues, at least it's not the elegant way ;) 5) On karmic alpha 2 the flickering is the same. The brightness keys are reacting but both keys randomly do nothing (but flickering) or switch with the following behaviour: Using the "brightness up" key I randomly get the darkest or the almost-brightest setting. With the "brightness down" key I get the brightest or almost-darkest setting. The OSD always displays one of those values belonging to the keys, but not necessarily the current one. After booting I get an error window saying "Internal error - failed to initialize HAL" ** Summary changed: - Brightness Bug, not like all the others! + Asus brightness keys only toggle between the lowest two levels -- Asus brightness keys only toggle between the lowest two levels https://bugs.launchpad.net/bugs/224636 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
