I can confirm that the following command works on my Lenovo Thinkpad X12
Detachable:
```
$ sudo cheese -d "Intel MIPI Camera"
[0:27:30.096047541] [8031] INFO Camera camera_manager.cpp:327 libcamera v0.4.0
[0:27:30.395656189] [8111] INFO SimplePipeline simple.cpp:1581 No sensor found
for /dev/media0
(cheese:8031): GStreamer-CRITICAL **: 15:41:30.627:
gst_structure_get_value: assertion 'structure != NULL' failed
(cheese:8031): GStreamer-CRITICAL **: 15:41:30.627: gst_structure_get_value:
assertion 'structure != NULL' failed
[0:27:30.521238422] [8031] INFO Camera camera_manager.cpp:327 libcamera v0.4.0
[0:27:30.534204723] [8113] INFO SimplePipeline simple.cpp:1581 No sensor found
for /dev/media0
[0:27:30.657142790] [8129] INFO Camera camera.cpp:1202 configuring streams:
(0) 2592x1944-MJPEG
[0:27:30.691203479] [8129] INFO Camera camera_manager.cpp:327 libcamera v0.4.0
[0:27:30.704863193] [8134] INFO SimplePipeline simple.cpp:1581 No sensor found
for /dev/media0
[0:27:30.805630492] [8128] INFO Camera camera.cpp:1202 configuring streams:
(0) 2592x1944-MJPEG
(cheese:8031): cheese-WARNING **: 15:41:33.159: A lot of buffers are being
dropped.: ../libs/gst/base/gstbasesink.c(3146): gst_base_sink_is_too_late ():
/GstCameraBin:camerabin/GstViewfinderBin:vf-bin/ClutterGstVideoSink:cluttergstvideosink0:
There may be a timestamping problem, or this computer is too slow.
```
When I list devices, I get the following:
```
$ sudo v4l2-ctl --list-devices
ipu6 (PCI:0000:00:05.0):
/dev/video0
/dev/video1
/dev/video2
/dev/video3
/dev/video4
/dev/video5
/dev/video6
/dev/video7
/dev/video8
/dev/video9
/dev/video10
/dev/video11
/dev/video12
/dev/video13
/dev/video14
/dev/video15
/dev/video16
/dev/video17
/dev/video18
/dev/video19
/dev/video20
/dev/video21
/dev/video22
/dev/video23
/dev/video24
/dev/video25
/dev/video26
/dev/video27
/dev/video28
/dev/video29
/dev/video30
/dev/video31
/dev/video32
/dev/video33
/dev/video34
/dev/video35
/dev/video36
/dev/video37
/dev/video38
/dev/video39
/dev/video40
/dev/video41
/dev/video42
/dev/video43
/dev/video44
/dev/video45
/dev/video46
/dev/video47
/dev/video48
/dev/video49
/dev/video50
/dev/video51
/dev/video52
/dev/video53
/dev/video54
/dev/video55
/dev/video56
/dev/video57
/dev/video58
/dev/video59
/dev/video60
/dev/video61
/dev/video62
/dev/video63
/dev/media0
Integrated RGB Camera: Integrat (usb-0000:00:14.0-4):
/dev/video64
/dev/video65
/dev/video66
/dev/video67
/dev/media1
/dev/media2
```
The gst-1.0-launch command fails:
```
$ gst-launch-1.0 libcamerasrc ! autovideosinkideosink
Setting pipeline to PAUSED ...
[0:33:23.867036475] [17163] INFO Camera camera_manager.cpp:327 libcamera v0.4.0
[0:33:23.880040845] [17172] INFO SimplePipeline simple.cpp:1581 No sensor
found for /dev/media0
Pipeline is live and does not need PREROLL ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
ERROR: from element /GstPipeline:pipeline0/GstLibcameraSrc:libcamerasrc0:
Internal data stream error.
Additional debug info:
../src/gstreamer/gstlibcamerasrc.cpp(662): gst_libcamera_src_task_enter ():
/GstPipeline:pipeline0/GstLibcameraSrc:libcamerasrc0:
streaming stopped, reason not-negotiated (-4)
Execution ended after 0:00:00.031851304
Setting pipeline to NULL ...
Freeing pipeline ...
```
If I load the v4l2loopback, I am able to see the loopback device in the
list of devices
```
$ sudo modprobe v4l2loopback devices=1 video_nr=0 card_label="My Virtual Cam"
$ $ sudo v4l2-ctl --list-devices
ipu6 (PCI:0000:00:05.0):
[... same as before...
]
My Virtual Cam (platform:v4l2loopback-000):
/dev/video68
```
gst-1.0-launch still fails
```
$ gst-launch-1.0 libcamerasrc ! videoconvert !
video/x-raw,format=YUY2,width=1024,height=768,framerate=30/1 ! v4l2sink
device=/dev/video68
Setting pipeline to PAUSED ...
[0:37:52.011972554] [17261] INFO Camera camera_manager.cpp:327 libcamera v0.4.0
[0:37:52.024982864] [17267] INFO SimplePipeline simple.cpp:1581 No sensor
found for /dev/media0
Pipeline is live and does not need PREROLL ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
ERROR: from element /GstPipeline:pipeline0/GstLibcameraSrc:libcamerasrc0:
Internal data stream error.
Additional debug info:
../src/gstreamer/gstlibcamerasrc.cpp(662): gst_libcamera_src_task_enter ():
/GstPipeline:pipeline0/GstLibcameraSrc:libcamerasrc0:
streaming stopped, reason not-negotiated (-4)
Execution ended after 0:00:00.032034978
Setting pipeline to NULL ...
Freeing pipeline ...
```
If there is a way to keep working towards a solution for the next ubuntu
release, or even to run a command similar to "cheese" that lets you use
the webcam in a webbrowser, please let me know what to try next. :)
--
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https://bugs.launchpad.net/bugs/2107304
Title:
Intel MIPI Camera not working out of the box on 25.04 where it did on
24.10
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