Screen tear/glitch following mouse pointer.

lordofchaos · 20 May 2019, 14:30

Just noticed this strange glitch when using latest WinUAE (4.2.1)

Standard A500 config, nothing exotic. Noticed this playing Desert Strike and The Settlers. Both floppy and WHDLoad.

When moving my mouse pointer up and down I get this slight offset that effects the screen, kind of like screen tearing, but this follows position of the mouse. Can't say I noticed this before on previous version so maybe new bug?

Picture enclosed highlighting area where it happens.

Toni Wilen · 20 May 2019, 16:36

Remove anything unneeded from your config first, it has too many "extra" features like vsync and fullscreen. Too many unknown variables. Windowed mode?

EDIT: Does it stop happening if you disable scaling or adjust scaled screen smaller?

(I probably know where it comes from but I don't see how)

lordofchaos · 21 May 2019, 10:05

Tried your suggestions and removed "vsync" and "scaling" from the config but kept full screen mode. Issue no longer occurs with this config.

Toni Wilen · 22 May 2019, 17:17

Does it only happen if lagless vsync is enabled (with more than 1 slice, does not happen if only 1 slice?) and filter settings are not full overscan horizontally?

lordofchaos · 23 May 2019, 00:55

With lagless vsync enabled the issue is present, also changing the slices from 1 and upwards doesn't make any difference. Even with no sync or standard vsync the shifted/offset pixels remain. Seems to happen when I change the filter.

Changing filter settings yields the following:

Scaling off = No issue
Full screen (TV) = Has issue
Full screen (Max) = No issue
Automatic Resize = Has issue
Automatic Centre = Has issue
Integer scaling = No issue
Auto Integer scaling = Has issue

Also changing from Windowed, Fullscreen and Full Window in combination with the filter settings doesn't seem to effect it.

Toni Wilen · 24 May 2019, 20:03

I managed to duplicate it. Yet another side-effect of "alien breed 3d" fix. It seems it can't be fully fixed without larger rewrite..

20 May 2019, 14:30	#1
lordofchaos TinkerTailorContentMaker Join Date: Nov 2009 Location: Bedfordshire Age: 45 Posts: 1,205	Screen tear/glitch following mouse pointer. Just noticed this strange glitch when using latest WinUAE (4.2.1) Standard A500 config, nothing exotic. Noticed this playing Desert Strike and The Settlers. Both floppy and WHDLoad. When moving my mouse pointer up and down I get this slight offset that effects the screen, kind of like screen tearing, but this follows position of the mouse. Can't say I noticed this before on previous version so maybe new bug? Picture enclosed highlighting area where it happens. Attached Thumbnails Last edited by lordofchaos; 19 July 2019 at 15:19.

20 May 2019, 16:36	#2
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,504	Remove anything unneeded from your config first, it has too many "extra" features like vsync and fullscreen. Too many unknown variables. Windowed mode? EDIT: Does it stop happening if you disable scaling or adjust scaled screen smaller? (I probably know where it comes from but I don't see how) Last edited by Toni Wilen; 20 May 2019 at 17:56.

23 May 2019, 00:55	#5
lordofchaos TinkerTailorContentMaker Join Date: Nov 2009 Location: Bedfordshire Age: 45 Posts: 1,205	With lagless vsync enabled the issue is present, also changing the slices from 1 and upwards doesn't make any difference. Even with no sync or standard vsync the shifted/offset pixels remain. Seems to happen when I change the filter. Changing filter settings yields the following: Scaling off = No issue Full screen (TV) = Has issue Full screen (Max) = No issue Automatic Resize = Has issue Automatic Centre = Has issue Integer scaling = No issue Auto Integer scaling = Has issue Also changing from Windowed, Fullscreen and Full Window in combination with the filter settings doesn't seem to effect it. Last edited by lordofchaos; 23 May 2019 at 01:05. Reason: clarity

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22 May 2019, 17:17	#4
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,504	Does it only happen if lagless vsync is enabled (with more than 1 slice, does not happen if only 1 slice?) and filter settings are not full overscan horizontally?

24 May 2019, 20:03	#6
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,504	I managed to duplicate it. Yet another side-effect of "alien breed 3d" fix. It seems it can't be fully fixed without larger rewrite..

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