[Debian-eeepc-devel] 1005P camera won't disable
Trent W. Buck
twb at cybersource.com.au
Tue Apr 6 10:59:04 UTC 2010
I don't use my 1005P's camera, so I want to power it down.
The normal technique doesn't work:
# dmesg -c >/dev/null
# cat /sys/devices/platform/eeepc/camera
cat: /sys/devices/platform/eeepc/camera: No such device
# echo 0 >/sys/devices/platform/eeepc/camera
# cat /sys/devices/platform/eeepc/camera
cat: /sys/devices/platform/eeepc/camera: No such device
# dmesg # the above didn't generate anything
#
Here are some diagnostics:
# powertop -dt15 | grep ^100.0%
100.0% USB device 1-6 : USB2.0 UVC VGA WebCam (Image Processor)
100.0% USB device usb1 : EHCI Host Controller (Linux 2.6.32-3-amd64 ehci_hcd)
# uname -r
2.6.32-3-amd64
# aptitude search -F%v linux-image-`uname -r`
2.6.32-9
# grep -o acpi_osi=Linux /proc/cmdline
acpi_osi=Linux
# ls -l /sys/devices/platform/eeepc/camera
-rw-r--r-- 1 root root 4096 Apr 6 20:51 /sys/devices/platform/eeepc/camera
# dmesg -c | egrep 'uvc|video|v4l'
[ 0.284302] pci 0000:00:02.0: Boot video device
[ 2.746072] ACPI Warning: _BQC returned an invalid level (20090903/video-631)
[ 4.114592] Linux video capture interface: v2.00
[ 4.136972] eeepc_laptop: Backlight controlled by ACPI video driver
[ 4.206002] uvcvideo: Found UVC 1.00 device USB2.0 UVC VGA WebCam (13d3:5111)
[ 4.208653] usbcore: registered new interface driver uvcvideo
The behaviour is the same with experimental's
linux-image-2.6.33-2-amd64=2.6.33-1~experimental.4, except that the
write also fails.
I can't see any camera option in the BIOS (unlike my 701). I'm running
BIOS 1005P-ASUS-0901.ROM.
Can anybody reproduce this behaviour? Is there any other information I
should include in "reportbug linux-image-2.6.32-3-amd64"?
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