Okay, I'm providing required data from WORKING, LIVE version of Ubuntu 8.10: ______________________________ uname -a: Linux ubuntu 2.6.27-4-generic #1 SMP Wed Sep 24 01:29:06 UTC 2008 x86_64 GNU/Linux ______________________________ cat /sys/devices/platform/acer-wmi/interface: WMID ______________________________ ls -la /proc/acpi/video: totale 0 dr-xr-xr-x 3 root root 0 2009-06-10 15:29 . dr-xr-xr-x 11 root root 0 2009-06-10 15:22 .. dr-xr-xr-x 10 root root 0 2009-06-10 15:29 GFX0 ______________________________ ls -la /sys/devices/platform/acer-wmi/backlight: ls: impossibile accedere a /sys/devices/platform/acer-wmi/backlight: Nessun file o dir..) (sorry, it's italian and it means "NO SUCH FILE OR DIRECTORY") ______________________________
ls -la /sys/devices/platform/acer-wmi/backlight/acer-wmi/: (same as previous directory, no such file or directory) ______________________________ Moreover, i found these files related to BRIGHTNESS (for complete list see attached log): /etc/acpi/thinkpad-brightness-down.sh /etc/acpi/thinkpad-brightness-up.sh /etc/acpi/video_brightnessdown.sh /etc/acpi/video_brightnessup.sh /etc/acpi/events/asus-brightness-down /etc/acpi/events/asus-brightness-up /etc/acpi/events/panasonic-brightness-down /etc/acpi/events/panasonic-brightness-up /etc/acpi/events/sony-brightness-down /etc/acpi/events/sony-brightness-up /etc/acpi/events/thinkpad-brightness-down /etc/acpi/events/thinkpad-brightness-up /etc/acpi/events/tosh-brightness-down /etc/acpi/events/tosh-brightness-up /etc/acpi/events/video_brightnessdown /etc/acpi/events/video_brightnessup /etc/acpi/resume.d/50-tosh-restore-brightness.sh /etc/acpi/suspend.d/50-tosh-save-brightness.sh /etc/laptop-mode/conf.d/lcd-brightness.conf /usr/lib/gnome-power-manager/gnome-brightness-applet /usr/lib/hal/scripts/hal-system-lcd-get-brightness /usr/lib/hal/scripts/hal-system-lcd-set-brightness /usr/lib/hal/scripts/linux/hal-system-lcd-get-brightness-linux /usr/lib/hal/scripts/linux/hal-system-lcd-set-brightness-linux /usr/share/laptop-mode-tools/modules/lcd-brightness and for instance, inside video_brightnessdown.sh, you can see the following script: #!/bin/sh test -f /usr/share/acpi-support/key-constants || exit 0 . /usr/share/acpi-support/key-constants acpi_fakekey $KEY_BRIGHTNESSDOWN but if I execute this script it doesn't do anything. I dunno what BRIGHT-FN keys are mapped to, but they DO work in this kernel. ** Attachment added: "dmesg.txt" http://launchpadlibrarian.net/27728556/dmesg.txt -- Cannot change brightness with 2.6.27-11+ kernel https://bugs.launchpad.net/bugs/333386 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs