So…I have an…interesting behavior I’ve never had before with an Nvidia or integrated intel chipsets…I have now my AMD card plugged both to a normal HDMI monitor, and then to another HDMI TV. Both work well. However, when I turn the TV off… The monitor will start flickering. About three flickers every minute or so. It’s not a signal loss also, I can see it’s drawing for a brief split second the windows that were drawing on the TV area, so it’s kinda rearranging the whole desktop area…then it resets. It does this 3 times, the whole ordeal last a couple seconds, in which everything is unusable because of the flicker, and focus going to all sorts of places. If I turn the TV back on, the behavior stops immediately.
Any idea what’s causing this, and how can I sort it out? I’m using KDE Neon latest (it’s still Ubuntu 22.04), with an AMD 7800XT, with kisak’s ppa. Running an updated kernel 6.5.0-1007-oem. (I followed these instructions to get it working at all)
Id try new HDMI cables. They can be finicky sometimes. I understand that it doesn’t seem like a HDMI cable issue from what you have written. But I’d still try it to completely rule it out. Maybe put the TV on a different wall socket also just in case it’s a weird power issue. I’m no technician, just a dude who’s run into a bunch of problems lol
Well it didn’t happen on the previous PC with the same TV and cable… So I’d discard any issues with these two and assume the trouble is in the only is l part recently changed, the PC.
I know it doesn’t seem to make sense. But I’d still try it. I have some HDMI that work for 1 thing but not another. I really should start buying better cables.