https://bugzilla.kernel.org/show_bug.cgi?id=42833
--- Comment #8 from Lee, Chun-Yi <j...@novell.com> 2012-03-19 03:54:58 --- (In reply to comment #7) > I run 'echo 5 > /sys/class/backlight/acpi_video0/brightness' but I get an > error > message again, that this directory doesn't exist, however it exists. In the > "brightness" file there was a 0, I change it to 5, save it but nothing > happend. > Finally you are right, if I boot the system with "acpi_backlight=vendor" > everything works fine. Please kindly list /sys/class/backlight to here: When REMOVED "acpi_backlight=vendor" # ls /sys/class/backlight When ADD "acpi_backlight=vendor" # ls /sys/class/backlight And, Please try the following 2 command when ADD "acpi_backlight=vendor": # echo 5 > /sys/class/backlight/acer-wmi/brightness # echo 5 > /sys/class/backlight/intel_backlight/brightness Which one works to change brightness on your machine? Thanks -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. ------------------------------------------------------------------------------ This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
