Read the statement by Michael Teeuw here.
Using vc4-kms-v3d lost control on tvservice
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@gregoryorciuch Yeah, it’s an ugly solution, but it works! I’d do the same, but my screen is blanking after about 25 minutes at most, and I just can’t justify a full reboot ever half hour.
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@gregoryorciuch I just remembered – are you using a PIR sensor? It seems like that’s been the source of the problem for a lot of people, and there seems to be a fix. Unfortunately, I am not so that doesn’t impact me and I didn’t remember to mention it.
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Hi Gregory
tvservice isnt compatible with the KMS driver, you need to use fkms to retain that compativility -
@cdelaorden I’ve changed the driver from kms to fkms and tvservice commands are now working as is display_rotate=1 in config.txt which is great, the issue I now have is transitions on the screen, compliments changing, news headlines etc are not smooth at all in fact they are quite jittery, any suggestions?
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@bradau no sorry, thats not my case
if you dont have any problem with the full kms maybe you will have to search of a tvservice alternative, something that works on any linux desktop and not specific to RPI
