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)

  • @[email protected]
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    51 year ago

    Hmm, I can’t say I’ve seen that before. However, it might be worthwhile trying to just boot a live ISO of GNOME (or any other DE) just to rule out a KDE issue. Then if that doesn’t replicate the problem, try a live distro of something with a newer version of KDE (such as Fedora 39).

    At the very least, that’ll help narrow down where the problem might be coming from!