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

[Gabriel Kuri]

Following up on this… after looking at the Xorg log in more detail, I
realized it was using llvmpipe for the OpenGL renderer.

I installed the version of libmesa out of debian-testing and it fixed the
issue.

The problem was the version of libmesa on debian stable, I’m assuming the
older version of libmesa didn’t like the bleeding edge Intel GPU on the
12th gen NUC.


On Fri, Nov 18, 2022 at 12:37 PM Dan Wilga <mythtv-users at dwilga.info> wrote:

> On 11/17/22 2:19 PM, Gabriel Kuri via mythtv-users wrote:
> > 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?
>
> I would look in the X server logs. The location depends on your distro,
> but one common location is /var/log/Xorg.0.log. (Substitute the correct
> X display ID for "0".)
>
> My guess is that you could be running out of memory due to the much
> higher amount required for that resolution.
>
>
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