broodwich82 Posted January 25, 2020 Share Posted January 25, 2020 Hello, I'm trying to use a NanoPi M4 with an old TV. When the system boots, the TV displays "Invalid resolution." However, it works with a different TV, which unfortunately I cannot use full time. I note that on the working TV, there's a line in dmesg stating "Console: switching to colour frame buffer device 240x67" which would imply that this can be configured somewhere?? However I tried searching, the only docs I get are outdated, for other hardware, or don't work. I tried adding 'disp.screen0_output_mode=1280x720p60' to /boot/armbianEnv.txt, but it had no effect. A pointer as to where these settings are actually controlled would be very helpful. Thanks Link to comment Share on other sites More sharing options...
broodwich82 Posted January 30, 2020 Author Share Posted January 30, 2020 I got as far as 'cat /sys/class/graphics/fb0/modes' and see only 1920x1080 in there ...... that seems weird. Still have not been able to figure out how to get this board to boot to console mode at a specified resolution. Edit: editing the u-boot environment in armbian-config and setting either of the following didn't work: video=HDMI-A-1:1366x768@60 video=card0-HDMI-A-1:1366x768@60 nor did choosing a standard resolution of 1024x768@60 work with either of those connector specifications. nor did setting 'drm.edid_firmware=edid/1024x768.bin' in u-boot in armbian-config. Link to comment Share on other sites More sharing options...
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