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

[jlistspam]

On 11/29/2018 6:32 PM, jlistspam wrote:
> On 11/29/2018 9:26 AM, Greg Oliver wrote:
>> On Thu, Nov 29, 2018 at 8:03 AM John Pilkington 
>> <johnpilk222 at gmail.com <mailto: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>
>>     > <mailto: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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>
> Thank you for bringing up this issue.  I had the same problem on one 
> of my machines after upgrading three of them from Fedora 28 to 29.  I 
> couldn't figure out what the issue was after removing and installing 
> the nvidia drivers and myth itself. Based on this info, I rebooted and 
> selected the 4.18.16-200 kernel and the playback works now.
>
> You saved me a lot of time as I was preparing to rebuild the whole 
> machine this weekend.  It looks like the 4.19.5 kernel in Fedora has 
> the patch.   Hopefully that will hit the main updates soon.
>
> Thank you!
>
> John
>
Hi,

Just an FYI that my machines received the 4.19.6-300 kernel in the 
updates today.  That kernel plays back videos correctly.

John

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