[mythtv] Qt warnings on mythfrontend start

[John Pilkington]

On 04/01/2020 16:33, Paul Harrison wrote:
> 
> On 04/01/2020 16:00, Klaas de Waal wrote:
>> Hi,
>>
>> With today's master I get the following warning on start of
>> mythfrontend (3 lines before and 1 line after also shown):
>>
>> 2020-01-04 16:55:34.268534 I  Checking for theme updates every hour
>> 2020-01-04 16:55:34.268722 I  Registering HouseKeeperTask 
>> 'HardwareProfiler'.
>> 2020-01-04 16:55:34.269404 I  Starting HouseKeeper.
>> Attempted flush to non-raster surface QWidgetWindow(0x131d220,
>> name="mainwindowWindow") of type QSurface::OpenGLSurface (consider
>> using Qt::WA_PaintOnScreen to exclude from backingstore sync)
>> Attempted flush to non-raster surface QWidgetWindow(0x131d220,
>> name="mainwindowWindow") of type QSurface::OpenGLSurface (consider
>> using Qt::WA_PaintOnScreen to exclude from backingstore sync)
>> 2020-01-04 16:55:34.433313 I  Bonjour: Service registration complete:
>> name 'Mythfrontend on modu' type '_mythfrontend._tcp.' domain:
>> 'local.'
>>
>> This is with mythfrontend running in  a 1280x720 window on a 1920x1200
>> screen, Intel graphics only.
>>
>> Groetjes,
>> Klaas.
> 
> 
> I see something similar using an NVidia card.
> 
> Early in the log I see these errors
> 
> [AVHWDeviceContext @ 0x562dd8ad6cc0] libva: va_getDriverName() failed 
> with unknown libva error,driver_name=(null)
> [AVHWDeviceContext @ 0x562dd8ad6cc0] Failed to initialise VAAPI 
> connection: -1 (unknown libva error).
> 
> 
> Then later  same as Klaas
> 
> Attempted flush to non-raster surface QWidgetWindow(0x562dd85e7270, 
> name="mainwindowWindow") of type QSurface::OpenGLSurface (consider using 
> Qt::WA_PaintOnScreen to exclude from backingstore sync)
> Attempted flush to non-raster surface QWidgetWindow(0x562dd85e7270, 
> name="mainwindowWindow") of type QSurface::OpenGLSurface (consider using 
> Qt::WA_PaintOnScreen to exclude from backingstore sync)
> 
> 
> Paul H.

Paul's VAAPI report has been showing up on my systems, which don't have 
that hardware, for several weeks.  The 'flush' ones look as if they 
might be related to another oldish report of 'I  Display: New main 
window/W  Display: Widget does not have a window!'

John P