Failed to open vchiq instance

silaspokemon

So I've had my raspberry pi 3b+ for 2 months soon with retropie. I've used it quite a lot. But today when I tried to boot it up, emulation station never started up. And I got taken to a screen where I got the failed to open vhiq instance. I considered reinstalling, but then I would loose all my games and the progress in all my games. Please help.

mitu

Please add more details about your system, as requested in https://retropie.org.uk/forum/topic/3/read-this-first.

Do you have enough disk space available ? Check with df -h if the / partition has enough free space.

Puffball

Watching, I have a similar issue, except i'm dual booting with berryboot.

nEwb_24

I came across this exact issue this weekend. My situation is, honestly I was curious about having OctoPi for my 3D printing and RetroPi to test some games.

To keep it short:

I was using a 128gb Samsung EVO SD card while dual booting (using berryboot)with Retropie and Octopi.
After trying to get it working by uninstalling and re-installing amongst other things, I decided to try another 32GB SD card also a Samsung Evo.
I installed RetroPie (From berryboot) first. Verified that the images booted successfully.
I added the octopi image from the berryboot images page and copied that over successfully.
I applied updates to RetroPie first then to OctoPi.
After configuring OctoPi to the way I needed it (after many hours of researching) after rebooting, both images still booted with no issue.
I made a backup of the SD card with my desired setup then restored that backup to the 128gb chip. I plan to test this chip to see if I have the same results.

Sidenote: In further research of this issue, the problem seems to be with permissions. This command seems to have worked for those getting the error. A reboot was required afterwards:

sudo usermod -a -G video yourusername