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Author Topic: Picasso and custom screen modes  (Read 4309 times)

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Offline Hyperspeed

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Re: Picasso and custom screen modes
« on: February 21, 2007, 05:42:21 AM »
Yeah, I'm interested in this since I've fancied a nice large LCD screen but they come in 1280x1024 native resolutions. The writeup will say 4:3 but 1280x1024 is not a 4:3 aspect ratio...

Shame about the Picasso-IV not being able to do 1280x1024 24-bit at a decent refresh rate. Does the horizontal refresh rate show up as bad as it would on a CRT?

The thing with 1280x1024 is that it's a direct double of 640x512 so would be cool for when the AGA modes kick in on the scandoubler (no constant screen resizing).

Speaking of screen resizing, most LCDs I've seen don't offer horizontal/vertical resizing or positioning which is a real pain. Auto-sizing rarely gets it right.

Can anyone reccommend a good LCD for Amiga (that Dell one doesn't count!).
 

Offline Hyperspeed

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Re: Picasso and custom screen modes
« Reply #1 on: February 22, 2007, 01:48:41 AM »
Eeek!

I bought a silver 19" Samsung TV/LCD before Christmas. It could do 1280x1024 but when I tried the SCART lead from the A1200's video port the picture was very blurry compared to the VGA port with my scandoubler.

Resizing was limited to horizontal only and then it was called 'Sync' or something. I'm not sure whether this monitor's colour settings were based on ambient light detection but the brightness setting didn't allow me to brighten it anywhere near enough - the picture was quite dark.

Not a screen for 15Khz modes I must say, I took it back and now I'm looking at NEC and Philips screens as those companies have a heritage with Amiga.

As for 49Hz vertical refresh on the Picasso-IV... on my basic A1200 PAL:High Res Laced was hideously flickery. Is this 49Hz mode non-interlaced?

I could live with a low refresh if it meant giving me a huge Workbench/TurboCalc screen to play with. Only trouble is I've seen 4MB AGP cards struggling in that resolution in terms of memory. Wonder if the ChipMem kicks in at all when the RTG mem is gone?