On Thu, 16 Apr 2009 22:13:15 -0400 Adam Stokes <adam.stokes@xxxxxxxxx> wrote: > So pressing the fn home/end for brightness alters : > > /proc/acpi/video/VID/LCD0/brightness > > doing an: > > echo '100' >/proc/acpi/video/VID/LCD0/brightness > > My .config for the kernel is set to: > > CONFIG_THINKPAD_ACPI_VIDEO=y > CONFIG_VIDEO_OUTPUT_CONTROL=m > CONFIG_ACPI_VIDEO=m > > lsmod shows: > > thinkpad_acpi 70316 0 > rfkill 11444 4 iwl3945,thinkpad_acpi > led_class 4344 3 iwl3945,sdhci,thinkpad_acpi > nvram 7868 1 thinkpad_acpi > > dmesg shows: > thinkpad_acpi: ThinkPad ACPI Extras v0.22 > thinkpad_acpi: http://ibm-acpi.sf.net/ > thinkpad_acpi: ThinkPad BIOS 7LETA7WW (2.07 ), EC 7KHT24WW-1.08 > thinkpad_acpi: Lenovo ThinkPad T61, model 6464Y1E > thinkpad_acpi: ACPI backlight control delay disabled > thinkpad_acpi: radio switch found; radios are enabled > thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness > control, supported by the ACPI video driver > thinkpad_acpi: Disabling thinkpad-acpi brightness events by default... > thinkpad_acpi: Standard ACPI backlight interface available, not > loading native one. > > kernel is 2.6.29-ARCH > > anyone know why the brightness still refuses to work? > Hi Adam, I'm using brightness control buttons every day with my ThinkPad R61. Both echo '100' >/proc/acpi/video/VID/LCD0/brightness echo 15 > /sys/class/backlight/acpi_video0/brightness work for me. "xev" shows the following: keycode 233 (keysym 0x1008ff02, XF86MonBrightnessUp) keycode 232 (keysym 0x1008ff03, XF86MonBrightnessDown) I've updated the system yesterday, but brightness control works fine for long time. I used to use custom scripts launched from /etc/acpi/handler.sh long time ago since the the regular buttons did not work properly. You may want to add: keycode 233 = XF86MonBrightnessUp keycode 232 = XF86MonBrightnessDown to your ~/.Xmodmap file (though I haven't, but check with "xev") Cheers, Sergey
