Created attachment 1523397 [details]
kernel: cx231xx 1-4:1.1: V4L2 device video0 deregistered

1. Please describe the problem:
I'm not able to use my "AVerMedia DVD EZMaker 7" USB capture card

it appears in lsusb as
Bus 001 Device 003: ID 07ca:c039 AVerMedia Technologies, Inc.

From the kernel log it looks like the capture device /dev/video0 starts and then fails at usb 1-4: couldn't get decoder output pad for V4L I/O

2. What is the Version-Release number of the kernel:
4.20.3-200.fc29.x86_64

3. Did it work previously in Fedora? If so, what kernel version did the issue
   *first* appear?  Old kernels are available for download at
   https://koji.fedoraproject.org/koji/packageinfo?packageID=8 :
worked in kernel-4.19.15-300.fc29.x86_64, stopped working in 4.20.0-0.rc0.git7.1.fc30.x86_64

4. Can you reproduce this issue? If so, please provide the steps to reproduce
   the issue below:
I had an OBS scene that was already set up to have /dev/video0 as a capture device. When booting up with the new kernel and launching OBS, the capture device outputs nothing, black screen. Usually the device outputs a solid blue screen when it's working and not capturing anything.

/dev/video0 isn't

5. Does this problem occur with the latest Rawhide kernel? To install the
   Rawhide kernel, run ``sudo dnf install fedora-repos-rawhide`` followed by
   ``sudo dnf update --enablerepo=rawhide kernel``:
The issue still occurs in 5.0.0-0.rc3.git0.1.fc30.x86_64

6. Are you running any modules that not shipped with directly Fedora's kernel?:
I think I have uinput module enabled

7. Please attach the kernel logs. You can get the complete kernel log
   for a boot with ``journalctl --no-hostname -k > dmesg.txt``. If the
   issue occurred on a previous boot, use the journalctl ``-b`` flag.