More Info: david@david-HPdv7:~$ grep -r . /proc/acpi/video grep: /proc/acpi/video: No such file or directory
david@david-HPdv7:~$ ls /sys/class/backlight acpi_video0 intel_backlight david@david-HPdv7:~$ sudo acpidump -o acpidump.txt david@david-HPdv7:~$ acpixtract acpidump.txt Acpi table [DSDT] - 50515 bytes written to DSDT.dat Acpi table [SSDT] - 1311 bytes written to SSDT1.dat Acpi table [SSDT] - 1986 bytes written to SSDT2.dat Acpi table [SSDT] - 2454 bytes written to SSDT3.dat Acpi table [SSDT] - 730 bytes written to SSDT4.dat Acpi table [SSDT] - 861 bytes written to SSDT5.dat david@david-HPdv7:~$ iasl -d DSDT.dat The program 'iasl' is currently not installed. You can install it by typing: sudo apt-get install iasl david@david-HPdv7:~$ sudo apt-get install iasl ...[snip]... david@david-HPdv7:~$ sudo fwts > fwts ...[snip]... ((at this point I assume the doc to redirect to fwts method is a mistake so I add an underscore)) david@david-HPdv7:~$ sudo fwts method > fwts_method ...[snip]... david@david-HPdv7:~$ dmesg | grep 'ACPI: Video' [ 16.668893] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) david@david-HPdv7:~$ dmidecode > dmidecode.log /dev/mem: Permission denied ((doc seems wrong here as well, requires sudo)) david@david-HPdv7:~$ sudo dmidecode > dmidecode.log david@david-HPdv7:~$ cat /proc/version Linux version 3.5.0-999-generic (apw@gomeisa) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #201206270421 SMP Wed Jun 27 08:22:11 UTC 2012 ** Attachment added: "acpidump.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1014915/+attachment/3205959/+files/acpidump.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1014915 Title: ACPI Error when changing screen brightness To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1014915/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
