[BUG] Flicker screen happen when enter and exit exclusive full-screen mode

[NeilTohno]

I found no error in mpv's log file. Thanks.

Important Information

mpv version mpv-x86_64-20220206-git-0197729 Source of the mpv binary: Windows builds by shinchiro (releases and git) | https://sourceforge.net/projects/mpv-player-windows/files

Windows Version win10 21H2 64bit 2950x cpu , vega 64 Acer VG271U P monitor 2k 144Hz

Reproduction steps

I test mpv with --no-config, get the same issue.

[MPV.exe --d3d11-exclusive-fs=yes --no-config "Y:\TT3\T1.mp4"] mpv1.zip

Frequency

Always. I test old version, I found same issue.

I took a video with smartphone. In this video, I press "f" key to enter exclusive full-screen mode, success, and I press "f" key again to exit exclusive full-screen mode, failed, and flicker screen happens. V_20220209_192048_ES6.zip

[NeilTohno]

That will only work if you will disable fullscreen optimisation on mpv executable in windows. Otherwise that makes no effect as you can see from mpv -v debug

I know the "disable fullscreen optimisation", I did disable fullscreen optimisation for every DirectX program.

There is no bug.

Also on LG C9 that becasue of edid selects 120 fps 4:2:0 resolution which does not work on lg c9 in hdmi 2.0b, a bug of EDID and or LG C9 chipset. A known bug...

My computer is connected to monitor through a DisplayPort 1.4 Cable.

[NeilTohno]

for every DirectX program.

Even for mpv?

Yes. I don't know what to say, after I read those news that "Fullscreen optimisation" could causes problems in some games, I decided to never use this feature.

https://www.reddit.com/r/Amd/comments/issh9o/enabling_disable_fullscreen_optimizations_fixed/ https://mspoweruser.com/tip-fullscreen-optimizations-might-hurting-game-performance-windows-10/

[NeilTohno]

Even for mpv?

I did it before you speak that. (｀・ω・´)

[NeilTohno]

You need to disable it per exe and it only works since quite new version of windows 10.

I did it. If you must kown.

[NeilTohno]

So how does it change the behaviour?

Nothing happened, the problem remains unsolved.

[na-na-hi]

This happens to all programs on Windows which enter exclusive fullscreen mode. There is nothing can be done from mpv side. Just don't use exclusive fullscreen.

[kasper93]

This happens to all programs on Windows which enter exclusive fullscreen mode. There is nothing can be done from mpv side. Just don't use exclusive fullscreen.

Correct.