[mythtv-users] mythtv issues at 4K (Intel NUC 12th Gen)

[Gabriel Kuri]

I have an Intel NUC 12th Gen that I loaded a mythfrontend on (31/fixes).
When X is running at 4K resolution (3840x2160), mythfrontend won't load.
Running it in the foreground generates the following output. The X server
didn't die, it's still there and running fine...

2022-11-17 11:11:17.555931 I  OpenGL: Initialised MythRenderOpenGL
2022-11-17 11:11:17.555932 I  OpenGL: Using full range output
2022-11-17 11:11:17.556364 I  UICache: Pruning cache directory:
/home/mythtv/.mythtv/cache/remotecache
2022-11-17 11:11:17.556374 I  UICache: Kept 0 files, deleted 0 files, stat
error on 0 files
2022-11-17 11:11:17.556375 I  UICache: Pruning cache directory:
/home/mythtv/.mythtv/cache/thumbnails
2022-11-17 11:11:17.556377 I  UICache: Kept 0 files, deleted 0 files, stat
error on 0 files
2022-11-17 11:11:17.580900 I  CECAdapter: libCEC support is disabled.
.752015 I  Qt: The X11 connection broke (error 4). Did the X11 server die?
.753197 I  UDPListener: Disabling

If I force mythfrontend to a lower geometry (ie 1080p), it comes up fine. I
can even go up to geometry 2000x1800, it loads. But as I increase either
the X or Y on the geometry, it will eventually get to the point where it
won't load and log the error "Qt: The X11 connection broke (error 4). Did
the X11 server die?".

I realize the GPU on this Nuc 12th gen is pretty new, I think it's an Iris
Xe ? I do have linux kernel 6.0.8 running to provide the latest i915 driver
and I also updated the intel-media-va-driver to 22.2.1.

I also tried myth 32/fixes with the same result.

I ran mplayer with a 4K test file and it plays.

I'm not sure how to further debug the issue at this point. Anyone running a
newer Intel NUC 12th gen with the newer Alder Lake GPU ? Any thoughts on
what's going on?
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