mythtv-setup screen does not full draw - I assume it's to do with backing store

[bib1963]

If I reboot, then start the FE, any future attempts to run mythtv-setup fails with the attached screen. The view is not being properly updated. If I switch to another virtual desktop, then back to the original, mythtv-setup does get redraw correctly. I have to do this every time I change something.

The FE has always worked correctly, just not mythtv-setup.

I could get round this my resetting changing from OpenGL to QT and back again, but these were removed a while ago.

This has been happening for a few years, however with the removal, I now find it intolerable.

This is with opensuse 15.1/packman updates. I'm sure this went back to the opensuse 14 days.

[bib1963]

FWIW, the only thing I get back when starting setup which I think is relevant is...

QOpenGLContext::swapBuffers() called with non-exposed window, behavior is undefined QOpenGLContext::swapBuffers() called with non-exposed window, behavior is undefined QOpenGLContext::swapBuffers() called with non-exposed window, behavior is undefined

[Mark Kendall]

Based on your description, I cannot reproduce this.

Can you be clear on what triggers it?

Are you attempting to run mythtv-setup while mythfrontend is still running? or do you run mythfrontend, exit and then run mythtv-setup?

Needless to say, it should work without issue with both behaviours.

[bib1963]

It does not matter whether, what is or has been running.

If mythtv-setup gets run twice in same session, the screen does not redraw properly.

I have found though, that deleting ~/.mythtv/cache/contextcache.xml allows mythtv-setup to run properly every time.

[Mark Kendall]

Can you attach copies of:-

• the contents of contextcache.xml (when the problem happens)
• the complete output of mythtv-setup log (again when the problem happens)

Thanks

[bib1963]

3 files attached.

contextcache.xml mythtv-setup.log.zip - git on mythtv-20200118 mythtv-setup-1.log.zip - git on 20200126

Even with today's git update, "programs: Add shared pre-QApplication setup for GUI applications", it still happens.

[Mark Kendall <mark.kendall@…>]

In 3da3ded47/mythtv:

programs: Add shared pre-QApplication setup for GUI applications

• MythDisplay::ConfigureQtGUI holds common code that should be called

before any GUI app is created and replaces inconsistent approach across
the MythTV gui binaries

• refs #13553

[bib1963]

That did not fix it.

The log mythtv-setup-1.log.zip - git on 20200126, has that patch in place.

[Stuart Auchterlonie]

Moving open tickets v31.0 -> v31.1

[Klaas de Waal]

This is caused by the mythfrontend setting StartupScreenDelay? being zero. This value is passed along in contextcache.xml and this value is then used by mythtv-setup. Then mythtv-setup sometimes fails to start correct.

The workaround is to set the StartupScreenDelay? to a value of at least one second.

See the complete discussion in the mailing list in: ​https://forum.mythtv.org/viewtopic.php?f=36&t=4470 with the discussion of the StartupScreenDelay? starting here: ​https://forum.mythtv.org/viewtopic.php?f=36&t=4470&start=30#p22105

[Stuart Auchterlonie]

We have moved all bug tracking to github [1]

If you continue to have this issue, please open a new issue at github, referencing this ticket.

[1] - ​https://github.com/MythTV/mythtv/issues