в продолжении этой темы.
Описываю проблему: при запуске нетбука и некоторое время спустя камера снимает в нормальном разрешении (vga), а потом --- в qqvga. Закономерности возникновения ошибки не заметил.
Сделал diff вывоводов dmesg'а до и после:
> [ 1139.113284] CE: hpet increased min_delta_ns to 7500 nsec
> [ 4540.453425] usb 1-1: USB disconnect, address 2
> [ 4540.709613] usb 1-1: new high speed USB device using ehci_hcd and address 3
> [ 4540.865134] usb 1-1: New USB device found, idVendor=0c45, idProduct=62c0
> [ 4540.865145] usb 1-1: New USB device strings: Mfr=2, Product=1, SerialNumber=0
> [ 4540.865154] usb 1-1: Product: WebCam
> [ 4540.865159] usb 1-1: Manufacturer: Sonix Technology Co., Ltd.
> [ 4540.867238] uvcvideo: Found UVC 1.00 device WebCam (0c45:62c0)
> [ 5677.701928] usb 1-1: USB disconnect, address 3
> [ 5677.956196] usb 1-1: new high speed USB device using ehci_hcd and address 4
> [ 5678.019732] hub 1-0:1.0: unable to enumerate USB device on port 1
> [ 5678.387045] usb 2-1: new full speed USB device using uhci_hcd and address 2
> [ 5678.524596] usb 2-1: not running at top speed; connect to a high speed hub
> [ 5678.578603] usb 2-1: New USB device found, idVendor=0c45, idProduct=62c0
> [ 5678.578619] usb 2-1: New USB device strings: Mfr=2, Product=1, SerialNumber=0
> [ 5678.578631] usb 2-1: Product: WebCam
> [ 5678.578639] usb 2-1: Manufacturer: Sonix Technology Co., Ltd.
> [ 5678.585721] uvcvideo: Found UVC 1.00 device WebCam (0c45:62c0)
> [10235.563185] CE: hpet increased min_delta_ns to 11250 nsec
~ $ zgrep -i video /proc/config.gz |sed '/^#/d'
CONFIG_ACPI_VIDEO=y
CONFIG_VIDEO_DEV=m
CONFIG_VIDEO_V4L2_COMMON=m
CONFIG_VIDEO_MEDIA=m
CONFIG_VIDEO_IR=m
CONFIG_VIDEO_V4L2=m
CONFIG_VIDEO_CAPTURE_DRIVERS=y
CONFIG_VIDEO_HELPER_CHIPS_AUTO=y
CONFIG_VIDEO_IR_I2C=m
CONFIG_USB_VIDEO_CLASS=m
CONFIG_VIDEO_OUTPUT_CONTROL=y
Заранее спасибо за помощь в решении проблемы.