Camera stays black - possible to restart (via terminal)?

[jojumaxx]

VP Quintus OTA-8

Every now and then the camera app does not come up and the screen stays black. I haven't figured out exactly yet, when that happens. To be able to use the camera again I have to reboot the phone.
That is not an OTA-8 thing, I had this also on OTA-7.

My question now is: Is there some command like

sudo systemctl restart camservice

or similar to restart the camera which avoids a reboot?

[Moem]

@jojumaxx This sounds like the problem I've been having. Please check out my bug report. And if you feel it's the same problem please comment and add your experience!
https://gitlab.com/ubports/development/apps/lomiri-camera-app/-/issues/210

Sorry, I've only ever been able to fix it by rebooting. Usually it takes a cold boot.

[kugiigi]

@jojumaxx Have you tried switching to the front camera then back? I've encountered this issue in some UT devices since like forever and switching to front camera always fixes it. The only camera issue that needed a reboot for me is when there's an actual error dialog that shows up.

[Moem]

@kugiigi said in Camera stays black - possible to restart (via terminal)?:

I've encountered this issue in some UT devices since like forever and switching to front camera always fixes it.

How do you do that if the screen is completely black?

[kugiigi]

@Moem Oh it's completely black. I thought only the viewport is black. Then I don't know I don't think I've ever encountered that.

[domubpkm]

Does the problem also exist on the RC channel? If not, maybe an OTA-8- RC -OTA-8 round trip could fix the problem. Or even stay on the last RC if the problem does not exist. I do not refer specifically to this problem but to a method that can (without guarantee) work to fix problem with all smartphones.

[Moem]

@domubpkm said in Camera stays black - possible to restart (via terminal)?:

Does the problem also exist on the RC channel?

Yes it does.