Messages in this thread |  | | | From | "Rafael J. Wysocki" <> | | Subject | Re: 2.6.38-rc2: acpi backlight control missing | | Date | Sat, 22 Jan 2011 20:43:07 +0100 |
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On Saturday, January 22, 2011, Thomas Meyer wrote: > with 2.6.38-rc2 the acpi backlight is gone: > > $ ll /sys/devices/virtual/backlight > ls: cannot access /sys/devices/virtual/backlight: No such file or directory > > $ ll /sys/class/backlight/ > total 0 > > with 2.6.37: > $ ll /sys/devices/virtual/backlight > insgesamt 0 > drwxr-xr-x. 3 root root 0 22. Jan 2011 acpi_video0 > > $ ll /sys/class/backlight/ > insgesamt 0 > lrwxrwxrwx. 1 root root 0 22. Jan 2011 acpi_video0 > -> ../../devices/virtual/backlight/acpi_video0 > > dmesg: > > $ grep -i video dmesg-3*.txt > dmesg-37.txt:[ 0.216370] pci 0000:00:02.0: Boot video device > dmesg-37.txt:[ 1.102662] input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A08:00/LNXVIDEO:00/input/input4 > dmesg-37.txt:[ 1.102670] ACPI: Video Device [OVGA] (multi-head: yes rom: no post: no) > dmesg-37.txt:[ 18.843946] Linux video capture interface: v2.00 > dmesg-37.txt:[ 19.189825] uvcvideo: Found UVC 1.00 device WebCam (064e:a102) > dmesg-37.txt:[ 19.207062] usbcore: registered new interface driver uvcvideo > dmesg-37.txt:[ 19.207065] USB Video Class driver (v1.0.0) > dmesg-38.txt:[ 0.215527] pci 0000:00:02.0: Boot video device > dmesg-38.txt:[ 19.466882] Linux video capture interface: v2.00 > dmesg-38.txt:[ 19.503083] uvcvideo: Found UVC 1.00 device WebCam (064e:a102) > dmesg-38.txt:[ 19.520292] usbcore: registered new interface driver uvcvideo > dmesg-38.txt:[ 19.520295] USB Video Class driver (v1.0.0) > > $ grep ACPI_VIDEO /boot/config-2.6.3[78]* > /boot/config-2.6.37:CONFIG_ACPI_VIDEO=y > /boot/config-2.6.38-rc2:CONFIG_ACPI_VIDEO=y > > any ideas?
Not really, but Matthew may have some (CCed).
Thanks, Rafael
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