MiSTer FPGA Forum

Hi ! I'd like to report a bug that occurs in games which temporarily switch their resolution from lowres to low-res interlaced.

- for instance, when starting Shadow of the Beast 3 with its introduction
- when enabling a multiball games in some flippers
- after the main menu in Bill's Tomato Game

the problem is, when the picture gets back to the non-interlaced mode, the picture remains way too small -- I use integer scaling and it appears the wrong scaling factor is applied.

Do you have this issue too ?
Cheers !

If you disable integer scaling or switch to 0,5-0,25x is the same?

I can check. The result will be less obvious to spot with smaller steps !
BTW, I use 1080p.

mahen wrote: ↑Mon Aug 24, 2020 9:50 am Hi ! I'd like to report a bug that occurs in games which temporarily switch their resolution from lowres to low-res interlaced.

- for instance, when starting Shadow of the Beast 3 with its introduction
- when enabling a multiball games in some flippers
- after the main menu in Bill's Tomato Game

the problem is, when the picture gets back to the non-interlaced mode, the picture remains way too small -- I use integer scaling and it appears the wrong scaling factor is applied.

Do you have this issue too ?
Cheers !

i get even worse in some demos get no screen has resolutions changing so many times the scaler in my monitor cant cope with the changes lol

Thorr posted a suggestion on the ao486 (issue, thread). Perhaps it could be helpful here, too?

Hi ! I've given a try again and this issue still occurs.
For instance, try to play Lionheart : the ingame scaling factor is still incorrect and the picture is way too small ; same as Bill's Tomato for instance.

Do you guys & gals also have this issue ?

I used the screen adjust to get a 5x scale cropped effect and noticed the screen mode switching while watching demos yesterday. I didn't notice any scaling problems, maybe because of the screen adjust, but my monitor always takes a couple of seconds to switch. I wonder if a trick would be possible to avoid interlace enable/disable switching resolution on the HDMI output.

Screen adjust doesn't always work correctly BTW, with some resolutions I still get bad looking scan lines.

Hi ! Thanks for your reply ! Did you try Uridium 2, SOTB 3, Lionheart, Bill's Tomato Game, or multiball modes in flippers ?
All four incorrectly switch back to a non-interlaced mode.
Hmm, actually, I really don't want to get a 5x scaling factor -- I prefer a smaller a finer picture
cheers

Bump !

No one has this issue at all ? What happens is some games get stuck in (I think) 3x scaling mode instead of 4x after temporarily switching to interlaced resolution back to normal non-interlaced low-res. I use a regular integer scaling mode.

As I said, titles triggering it are : Uridium 2, Shadow of the Beast 3, Lionheart, Bill's Tomato Games, after quitting multiball mode in Slam Tilt...

I think 4x scaling is the sweet spot for the Amiga. IMHO 5x looks too much pixellized (pixellated ?) and 3x is really too small

Solution found thanks to Sorgelig, check out :
https://github.com/MiSTer-devel/Minimig ... issues/123#