[mythtv-users] Video quality on 0.28 worse than it was on 0.21

[Stephen Worthington]

On Sat, 25 Aug 2018 16:54:13 -0700, you wrote:

>>
>> I would recommend using the Mythbuntu 16.04.1 version from here:
>>
>>
>> Almost there. I installed 16.04.1 as you suggested and now video playback
>is smooth as it ever was.
>
>But there is still a problem.  Every time the system starts I am greeted by
>this message.
>
>I click Upgrade but the next reboot I get the same message.
>
>Not much help from Google. One post suggests doing something I already did
>to get Mythweb to work.  The other suggests that there is a corrupt
>database.  But this is a new install and I have not entered any Music, or
>even programs.
>
>But at least I have good video playback.
>
>I do need to get rid of this upgrade message though...
>
>Allen

The mythmusic plugin is a mythfrontend only one.  The upgrade of the
schema on its extra database tables should happen by running
mythfrontend.  What is the history of your database?  Is it a clean
database, or have you restored your old one?

What should happen is that on the next run of mythfrontend (with the
mythmusic plugin installed) after seeing that message, mythfrontend
should do a backup of the entire database (which can take a while if
it is large), then mythmusic will do the schema upgrade of its tables.
What happens to some people is that the database backup happening at
the start of mythfrontend takes so long that they think there is a
problem and kill mythfrontend and try again, which does not allow the
backup and upgrade to happen.  And there have been reports of what you
are seeing - the upgrade does not happen for some other reason.  You
can see what mythfrontend is doing by running "tail -f
/var/log/mythtv/mythfrontend.log" from a command prompt while it is
starting up.  You need to leave it running while the messages there
show it is still working on the backup and upgrade.

If just running mythfrontend does not do the upgrade, then the way
around the problem is to uninstall the mythmusic plugin ("apt remove
mythmusic") - shut down mythbackend first.  This does not affect the
mythmusic tables in the database.  Then run mythtv-setup (without
mythbackend running) to ensure that all other schema upgrades have
happened.  Do not make any changes while in mythtv-setup, just shut it
down again.  If it has upgrades to do, it may take a while as it will
do a database backup first.  Restart mythbackend.  Then you run
mythfrontend without mythmusic, shut it down and reinstall the
mythmusic plugin ("apt install mythmusic") and run mythfrontend again
and run tail to watch what it is doing.  That normally is sufficient
to make the schema upgrade work.