Resolution 640 x 480 = screens flickering

[sega_mad]

Hi all,

Hoping someone can help.

Under Mala I'm running it at 640 x 480 on a Arcade Screen (15 Khz) using soft 15Khz. At this resolution there is screen flicker (only way I can describe it). I read some where that this is a interlace resolution and will cause this symptom. I changed it to 312 x 240 and the flicker stopped, but I could only see part of the screen, as the image was way to large!!

Games don't seem to do it, just the front end.

Anyone got a fix??

Thanks in advance

[Dawgz Rule]

Correct on the interlace.  In order to display that high of a resolution, the monitor will go to interlaced mode.  I use GameEx on my front end and there is an option to set the resolution which I have at 640x288.  I would imagine this could be done by changing the Mala layout. 

[sega_mad]

Hi,

Thanks for the reply.

I tried that....no success  

On closer inspection, the games do show some flickering (all though not noticeable behind a dark tinted screen).

If I remember correctly (from ages ago), the developer of soft 15Khz said it couldn't be fixed when I asked about it.

I don't believe soft 15Khz has any display setting options, and the video card (Radeon 9600) can only go down to 640X480

How do you play your games at a lower resolution???

Thanks again for trying

[MTPPC]

Use catalyst 6.5 for the video card driver and quickres to set low resolutions. Then use this tool to create your ini files: http://www.ultimarc.com/avres.zip.

Sorry I can't give better details, but it's been a couple months since I did it and don't remember exactly how I did it. I do remember that I needed to figure out valid resolutions for my setup and then edit the avres config file to set only those that work.

[sega_mad]

Hi.

What does Catalyst 6.5 do?

how is that different to the one I'm running?

Have used Avres before, but with no luck.

Cheers..

[PaTrYcK]

Hi, disinstall driver , then install this driver
(download Radeon Omega Drivers 3.8.252  - This release is based on ATI Catalyst 6.5. )

http://www.ngohq.com/home.php?page=Files&go=cat&dwn_cat_id=14

After reboot use quickres for change resolution  (http://files.arianchen.de/soft15khz/quickres.zip)

[Dawgz Rule]

Funny, just ran into a similar issue but at all resolutions.  My fix was to remove the ATI driver and install again clean.  Probleme solved.  Go figure the luck of that one.

[sega_mad]

Hi, disinstall driver , then install this driver
(download Radeon Omega Drivers 3.8.252  - This release is based on ATI Catalyst 6.5. )

http://www.ngohq.com/home.php?page=Files&go=cat&dwn_cat_id=14

After reboot use quickres for change resolution  (http://files.arianchen.de/soft15khz/quickres.zip)

Thanks very much......all sorted now.

Just got to sort out the resolutions on CPS3 emulator. (have posted in the software section if someone can help)

Thanks again