Image freeze on full screen and floating window

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blindman
Posts: 5
Joined: Mon Nov 23, 2020 1:39 am
Location: Timisoara

Image freeze on full screen and floating window

Post by blindman »

Hello,
I found an situation of image freeze:
Preconditions:
- Freshly started AltDVB, channel playing
- double click image for full screen OR
- right click and select floating window

Image freezes, while sound keeps working.

- resizing the floating window OR
- in full screen restarting the DS chain via DS Config->Save and restart
will fix the problem from that moment on, until program restart.

I changed codecs to LAV (not internal) and Microsoft DTV-DVD decoders, with the same behavior.
Switching to Video Mixing Renderer 9 does not show this problem, only if EVR is used.

System: TBS6552 on Win7 (64 bit).
blindman
Posts: 5
Joined: Mon Nov 23, 2020 1:39 am
Location: Timisoara

Re: Image freeze on full screen and floating window

Post by blindman »

Addon:
I tested it initially on a Radeon 6850.
Updated the system to a nvidia GTX 1650 with latest drivers and full HW accelleration - the behavior is the same.
So it does not seem to be a driver issue.
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altxro
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Posts: 75
Joined: Fri Jan 03, 2020 7:25 pm
Location: Cluj-Napoca
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Re: Image freeze on full screen and floating window

Post by altxro »

Hi,
Sorry, but I cannot simulate the issue on my PC (Win10 20H2 with Intel video). I also tested in a virtual machine with Win7 (32 bit).
Could be related to EVR implementation in Win7 or with LAV hardware acceleration decoding.
Please disable HW acceleration in LAV and try again (note that the setting is not applied imediately, you have to restart video or application)
blindman
Posts: 5
Joined: Mon Nov 23, 2020 1:39 am
Location: Timisoara

Re: Image freeze on full screen and floating window

Post by blindman »

Ok. I tried that one, too.

The same behavior, with one additional observation:
After full screen + freeze, reverting from full screen will restore it to working order. Full screen again and it will freeze again.
It also freezes on drag from one display to another after reaching half of the video window.

I assumed it is actually a EVR issue, not something directly related to AltDVB, but strangely, it works correctly in ProgDVB (with the same settings in LAV), including smooth display switch.
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