This is how the screen is set up:
...according to this document:
http://www.waveshare.com/wiki/7inch_DSI_LCD_(C)
....and I cannot force a different refresh rate. Only 60 Hz seems to be supported. :( I can modify "/boot/firmware/cmdline.txt" and confirm that my changes take effect. I get a blank screen for 30 Hz, a scrambled screen for 40 and 50 Hz, and upside down text for 60 Hz with rotation 180...
...but no WiFi unless I disconnect screen power. This is how I change screen settings, by the way:
I'm considering capacitors and ferrite rings next. :o
Code:
dtoverlay=vc4-kms-v3ddtoverlay=vc4-kms-dsi-waveshare-panel,7_0_inchC,i2c1http://www.waveshare.com/wiki/7inch_DSI_LCD_(C)
....and I cannot force a different refresh rate. Only 60 Hz seems to be supported. :( I can modify "/boot/firmware/cmdline.txt" and confirm that my changes take effect. I get a blank screen for 30 Hz, a scrambled screen for 40 and 50 Hz, and upside down text for 60 Hz with rotation 180...
...but no WiFi unless I disconnect screen power. This is how I change screen settings, by the way:
Code:
video=DSI-1:1024x600M@60,rotate=180Statistics: Posted by diastrikos — Fri Oct 24, 2025 2:54 am