The Industrial Raspberry Pi Forum

Hello,
We have a problem with a RevPi Core 3 when setting resolution. We config resolution to 1280x720 (hdmi_mode=4) and it works normally....
However, it start at 640x480 sometimes. I has been working like one month without problem until a few days ago...
Do you know some way to ensure that it boots at desire resolution?

Thanks

We need more information to understand your problem. Please tell us if you are talking about command line mode or GUI mode. Please also send your config file so we can check what you have changed in that file.