http://bugzilla.kernel.org/show_bug.cgi?id=11769
------- Comment #26 from [EMAIL PROTECTED] 2008-11-12 18:45 ------- Hi, Marc, you don't need to do the test in comment #22. (In reply to comment #21) > 23:15 - Boot. Brightness goes up to 100% good, the ACPI video driver set the brightness level to maximum if no _BQC available. > 23:17 - echo 62 > /proc/acpi/video/VGA/LCD/brightness. The actual brightness > changes, and that file has the correct value, but both backlight brightness > files (acpi_video0, acpi_video1) still say level 7 (100%). good. the ACPI control methods works on this laptop. and the "brightness" file only returns a cached value, in order to get the real brightness level, you need to run "cat actual_brightness" > 23:19 - I go to console using Ctrl-Alt-F1. The actual brightness goes to > 100%. this is strange, this is not done by ACPI driver. please do this test, unload the ACPI video driver before you go to console. does the brightness still goes to 100%? > The /proc file still says 62%, but both backlight device files say level 7 > (100%). > 23:19 - Return to xorg (Ctrl-Alt-F7). Actual brightness is still at 100%, the > file values are unchanged. > 23:21 - I press the brightness up/down switches a few times. The values in > the brightness files never change. this is weird, the dmesg shows that ACPI video driver does change the brightness level upon hotkey event, please press the brightness down button for 5 times, if the brightness doesn't change, attach the output of "cat /proc/.../brightness" BTW: please attach the output of "xrandr --verbose". please run "xrandr --verbose | grep BACKLIGHT", if the BACKLIGHT_CONTROL is not "kernel" mode, please run "xrandr --output LVDS --set BACKLIGHT_CONTROL kernel" and check if this helps. -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
