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ZZAP69
Registered: Feb 2002
Posts: 30 |
Best LCD TV-set for the C64?
Most people I've talked to, doesn't recommend a LCD TV as a C64 monitor, but my question is: which is the best one? I'm looking forward to a slick C64 setup with 1541U and a very portable monitor. :D
Tobias |
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MagerValp
Registered: Dec 2001
Posts: 1074 |
Some LCDs have a setting called "Game Mode", which typically disables deinterlacing and other image "enhancements" that interferes with game consoles (and thus also C64s). Try looking for something like that in the spec sheet.
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WVL
Registered: Mar 2002
Posts: 898 |
Maybe to show what I mean :
I tried my c64 on my LCD-tv (a JVC LT37P80b), and the picture looks really fine. But. The tv is really fixed to displaying either 50 or 60hz. So you get frameskip with the 50.12 Hz c64 signal (about every 8 seconds, the screen jumps). It's really really really annoying and I doubt other tv's are any better at stuff like that.. It's like watching VICE on a 50hz lcd monitor.. exactly the same kind of frameskips. |
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macx
Registered: Mar 2002
Posts: 253 |
Mr. Schoenfeld more specifically on the Chameleon Cart:
"The video chip shares the bus with the CPU, and this shared bus is on the expansion port. Chameleon will sniff the bus and see all the data that the VIC is pulling from memory. This data will be used to build a new picture, which is to be written to a frame buffer. The frame buffer will be output to a VGA monitor at a higher frame rate in order to have VGA-compatible frequencies." |
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WVL
Registered: Mar 2002
Posts: 898 |
Quote: Mr. Schoenfeld more specifically on the Chameleon Cart:
"The video chip shares the bus with the CPU, and this shared bus is on the expansion port. Chameleon will sniff the bus and see all the data that the VIC is pulling from memory. This data will be used to build a new picture, which is to be written to a frame buffer. The frame buffer will be output to a VGA monitor at a higher frame rate in order to have VGA-compatible frequencies."
Yesyesyes, but you still cannot find lcd-screens that will do 50.12 hz. |
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macx
Registered: Mar 2002
Posts: 253 |
Quote: Yesyesyes, but you still cannot find lcd-screens that will do 50.12 hz.
Please re-read the final sentence in that last post of mine. |
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Radiant
Registered: Sep 2004
Posts: 639 |
A non-matching refresh rate means you will either have tearing or a reoccuring irregularity in the framerate, unless you use some kind of interframe blending, and that's not possible if you display the graphics in real time. Could be solved by delaying the output by one frame though. |
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WVL
Registered: Mar 2002
Posts: 898 |
Quote: Please re-read the final sentence in that last post of mine.
OK, then please find a lcd that does 100.24 Hz ;) What I'm trying to say : you will get frameskips, no matter what. |
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macx
Registered: Mar 2002
Posts: 253 |
Quote: OK, then please find a lcd that does 100.24 Hz ;) What I'm trying to say : you will get frameskips, no matter what.
You may be right, I just thought that the guy would have given the problem a thought when saying "the complete VIC-II is cloned in Chameleon in order to generate the exact same picture", and come up with a solution. But I dunno.. and it seems like the cart is delayed anyhow. |
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Radiant
Registered: Sep 2004
Posts: 639 |
macx: Thing is, the timing in a PAL C64 is hardwired to run against a 50.12 Hz screen, so you will run into display skewing problems unless you can find a screen which allows for a refresh rate that's evenly dividable by 50.12. There is no clever way around it, the "best" solution is to compensate for the skew by blending the would-be-skewed frames into an accurate intermediate.
(Edit: Why does no emulator feature this as of yet?) |
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Frantic
Registered: Mar 2003
Posts: 1646 |
tss.. swappers... ;) |
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