I have bought the CHUWI Ubook X 2023 and as every reasonable person, the first thing I tried is installing linux on it.

As explained in other threads Linux on the Ubook main problems are graphic drivers and screen rotation although those are relatively easy to solve. Lid sensors, keyboard, pen etc all seem to work just fine. However, cameras are failing. I can't get none of them to work. They seem to be of type ipu3-csi2 cameras as this is the output of v4l2-ctl --list-devices -D

ipu3-imgu (PCI:0000:00:05.0):

Intel IPU3 CIO2 (PCI:0000:00:14.3):

Driver Info:
Driver name      : ipu3-cio2
Card type        : Intel IPU3 CIO2
Bus info         : PCI:0000:00:14.3
Driver version   : 6.5.3
Capabilities     : 0x84201000
    Video Capture Multiplanar
    Extended Pix Format
    Device Capabilities
Device Caps      : 0x04201000
    Video Capture Multiplanar
    Extended Pix Format
Media Driver Info:
Driver name      : ipu3-cio2
Model            : Intel IPU3 CIO2
Serial           : 
Bus info         : PCI:0000:00:14.3
Media version    : 6.5.3
Hardware revision: 0x00000000 (0)
Driver version   : 6.5.3
Interface Info:
ID               : 0x03000006
Type             : V4L Video
Entity Info:
ID               : 0x00000004 (4)
Name             : ipu3-cio2 0
Function         : V4L2 I/O
Pad 0x01000005   : 0: Sink, Must Connect
  Link 0x02000008: from remote pad 0x1000003 of entity 'ipu3-csi2 0' (Video Interface Bridge): Data, Enabled, Immutable

Neither cheese nor qcam from libcamera manage to show any image from them. I know the device is not damaged as they work just fine in windows.


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