集成摄像头已经好几个星期无法使用了。以前它能用，但有时突然就不工作了，现在它直接就不工作了。
以下是一些命令的输出，可以为您提供更多信息：
lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.3 LTS
Release: 20.04
Codename: focal
uname -r
5.11.0-37-generic
$ cheese
** (cheese:17881): CRITICAL **: 22:02:42.699: cheese_preferences_dialog_on_source_change: assertion '_tmp2_ > ((guint) 0)' failed
(cheese:17881): cheese-CRITICAL **: 22:02:42.699: cheese_camera_device_get_name: assertion 'CHEESE_IS_CAMERA_DEVICE (device)' failed
(cheese:17881): GLib-CRITICAL **: 22:02:42.699: g_variant_new_string: assertion 'string != NULL' failed
(cheese:17881): GLib-CRITICAL **: 22:02:42.699: g_variant_ref_sink: assertion 'value != NULL' failed
(cheese:17881): GLib-GIO-CRITICAL **: 22:02:42.699: g_settings_schema_key_type_check: assertion 'value != NULL' failed
(cheese:17881): GLib-CRITICAL **: 22:02:42.699: g_variant_get_type_string: assertion 'value != NULL' failed
(cheese:17881): GLib-GIO-CRITICAL **: 22:02:42.699: g_settings_set_value: key 'camera' in 'org.gnome.Cheese' expects type 's', but a GVariant of type '(null)' was given
(cheese:17881): GLib-CRITICAL **: 22:02:42.699: g_variant_unref: assertion 'value != NULL' failed
** (cheese:17881): CRITICAL **: 22:02:42.699: cheese_preferences_dialog_setup_resolutions_for_device: assertion 'device != NULL' failed
$ guvcview
libv4l2: error getting pixformat: Invalid argument
V4L2_CORE: ERROR opening V4L2 interface for /dev/video0
GUVCVIEW: version 2.0.6
GUVCVIEW: couldn't open /home/gisele/.config/guvcview2/video0 for read: No such file or directory
libv4l2: error getting pixformat: Invalid argument
V4L2_CORE: ERROR opening V4L interface: Invalid argument
GUVCVIEW (1): Guvcview error
no video device found
(guvcview:50268): Gtk-WARNING **: 23:26:50.109: Theme parsing error: <data>:1:17: not a number
(guvcview:50268): Gtk-WARNING **: 23:26:50.109: Theme parsing error: <data>:1:31: Using Pango syntax for the font: style property is deprecated; please use CSS syntax
(guvcview:50268): Gtk-WARNING **: 23:26:50.109: Theme parsing error: <data>:1:17: not a number
(guvcview:50268): Gtk-WARNING **: 23:26:50.109: Theme parsing error: <data>:1:32: Using Pango syntax for the font: style property is deprecated; please use CSS syntax
$ sudo lsusb -v | grep Camera
[sudo] password for gisele:
can't get debug descriptor: Resource temporarily unavailable
Bus 001 Device 007: ID 1bcf:0b13 Sunplus Innovation Technology Inc. SPCA2087 PC Camera
iProduct 2 SPCA2087 PC Camera
iFunction 4 PC Camera
iInterface 4 PC Camera
wTerminalType 0x0201 Camera Sensor
can't get debug descriptor: Resource temporarily unavailable
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
$ dmesg | grep -i "Camera"
[ 2.061452] usb 1-6: Product: Integrated Camera
[ 11.385308] uvcvideo: Found UVC 1.00 device Integrated Camera (5986:2115)
[ 11.403237] input: Integrated Camera: Integrated C as /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6:1.0/input/input31
$ ls -ltrh /dev/video*
crw-rw----+ 1 root video 81, 0 oct 15 22:33 /dev/video0
crw-rw----+ 1 root video 81, 2 oct 15 23:34 /dev/video2
crw-rw----+ 1 root video 81, 1 oct 15 23:34 /dev/video1
$ lsmod | grep uvcvideo
uvcvideo 98304 0
videobuf2_vmalloc 20480 1 uvcvideo
videobuf2_v4l2 32768 1 uvcvideo
videobuf2_common 61440 2 videobuf2_v4l2,uvcvideo
videodev 245760 6 v4l2_fwnode,ov8856,videobuf2_v4l2,v4l2loopback,uvcvideo,videobuf2_common
mc 57344 5 videodev,ov8856,videobuf2_v4l2,uvcvideo,videobuf2_common
希望有人能帮助我。这个问题我已经困扰我好几个星期了，我却无法解决