[mythtv-users] MythTV playback fails in Fedora 28 4.19.2 after multi-package update today

[Greg Oliver]

On Thu, Nov 29, 2018 at 8:03 AM John Pilkington <johnpilk222 at gmail.com>
wrote:

> On 27/11/2018 17:44, Greg Oliver wrote:
> > On Thu, Nov 22, 2018 at 3:12 PM Nigel Jewell <nigel.jewell at grufty.co.uk
> > <mailto:nigel.jewell at grufty.co.uk>> wrote:
> >
> >     On 22/11/2018 20:29, John Pilkington wrote:
> >      > I'm not sure that this is the best place to report, but much of
> the
> >      > system seems ok and mythfrontend locks up with 'Please wait' on
> >      > starting playback.   Recovery seems to need power-off and reboot.
> >      >
> >      > KDE, nVidia GT 710 with 410.78, vdpau  HQ
> >      >
> >      > Reverted to 4.18.18 and it works again.
> >
> >
> >     You are probably experiencing this:
> >     https://bugzilla.redhat.com/show_bug.cgi?id=1650224 ??
> >
> >
> >     Nige.
> >
> >
> > There are several tuner related bugs as well with 4.19+
> >
> > https://lkml.org/lkml/2018/11/20/1208
> >
> > is one of them.  Might be good for everyone to stay on 4.18 until they
> > get backported.  LKML has quite a few of them today that I noticed
> > during leisurely reading..
> >
> > -Greg
>
> I had not seen problems like this while running 4.18.18, but 4.19.5 is
> now in Fedora updates-testing and is working for me.
>
> John
>

Yeah - that example was related to the flexcop cards, but they made under
the hood changes to v4l2 that affected more cards, but not all.  What sucks
is that the kernel has very strict rules regarding breaking userspace, but
apparently the multimedia (v4l2) subsections do not adhere to that policy,
so they just fix as they go..  Kind of depressing actually.
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