http://bugzilla.kernel.org/show_bug.cgi?id=12249
------- Comment #6 from tetrom...@gmail.com 2008-12-18 19:52 ------- Created an attachment (id=19368) --> (http://bugzilla.kernel.org/attachment.cgi?id=19368&action=view) dmesg output (In reply to comment #5) > Never trust the brightness value read from "brightness" > If you want to get the current backlight level, run "cat > /sys/class/backlight/acpi_video0/actual_brightness" Doesn't work, /sys/class/backlight/acpi_video0/actual_brightness always says 0, no matter what the brightness is. > please kill acpid, and run "cat /proc/acpi/event" > attach the output after pressing the brightness up/down hotkey. Each time I press "brightness down", cat /proc/acpi/event prints video LCDD 00000087 00000000 Each time I press "brightness up", it prints video LCDD 00000086 00000000 (even when it rolls over and decreases the brightness again). > please attach the dmesg output as well. There is nothing new added to dmesg when I change the screen brightness. For reference, here is the complete dmesg output (the "Lenovo SL series driver" is a driver for the multimedia hotkeys that I am writing at the moment). -- 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. ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
