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Author Topic: What is a 640x400 LCD TV supposed to do with higher resolutions ?  (Read 18427 times)

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Offline arkpandoraTopic starter

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Re: What is a 640x400 LCD TV supposed to do with higher resolutions ?
« Reply #14 on: January 21, 2008, 03:11:38 PM »
I forgot to add that displaying 50 Hz screens through an Amiga flicker-fixer connected to the VGA input, rather than the native Amiga output connected to the RGB input, has also the advantage of preserving a 24-bit palette, which to my knowledge is reduced to something like 16 or 18-bit when it goes through the built-in flicker-fixer of a LCD monitor's RGB input.

I see that the 932MW is another (smaller - 19' instead of 20) Samsung model that has RGB inputs.
 

Offline Krusher

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Re: What is a 640x400 LCD TV supposed to do with higher resolutions ?
« Reply #15 on: January 21, 2008, 03:20:59 PM »
Quote

arkpandora wrote:
I forgot to add that displaying 50 Hz screens through an Amiga flicker-fixer connected to the VGA input, rather than the native Amiga output connected to the RGB input, has also the advantage of preserving a 24-bit palette, which to my knowledge is reduced to something like 16 or 18-bit when it goes through the built-in flicker-fixer of a LCD monitor's RGB input.


That depends on the build in scaler of the monitor. Modern hybrid tv/pc monitors won't have those issues.
 

Offline arkpandoraTopic starter

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Re: What is a 640x400 LCD TV supposed to do with higher resolutions ?
« Reply #16 on: January 21, 2008, 03:24:42 PM »
Buffy is always there when you need her.

At all hours of the day, I mean.
 

Offline Flashlab

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Re: What is a 640x400 LCD TV supposed to do with higher resolutions ?
« Reply #17 on: January 26, 2008, 02:04:12 PM »
I bought the Samsung SyncMaster 2032MW and I think it's great! Thanks Krusher for the tip!

It shows non-native resolutions quite well!
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Offline Krusher

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Re: What is a 640x400 LCD TV supposed to do with higher resolutions ?
« Reply #18 on: January 26, 2008, 02:14:13 PM »
Good to hear that! Can you post a photo of your setup?
 

Offline Flashlab

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Re: What is a 640x400 LCD TV supposed to do with higher resolutions ?
« Reply #19 on: January 26, 2008, 03:24:41 PM »
Sadly, apart from my monitor, I kind of still live in the digital stone age; I don't have a camera and my phone doesn't have one either...
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Offline Krusher

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Re: What is a 640x400 LCD TV supposed to do with higher resolutions ?
« Reply #20 on: January 26, 2008, 03:30:42 PM »
Quote

Flashlab wrote:
Sadly, apart from my monitor, I kind of still live in the digital stone age; I don't have a camera and my phone doesn't have one either...


Oh well, you can't have everything  :lol:

Too bad though, would be a nice reference for other people if they also want a tft monitor.
 

Offline Flashlab

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Re: What is a 640x400 LCD TV supposed to do with higher resolutions ?
« Reply #21 on: January 26, 2008, 03:56:55 PM »
For reference I can tell you this:

I have connected to this monitor:
- PC (DVI)
- Amiga (VGA)
- Digital TV via SCART

And I will use the S-Video port for my Amiga when I get an RGB to S-Video adapter.

The monitor has very good image quality; for TV watching you need a good quality signal because the screen quality won't hide any of the noise.

Also there's the option to switch between 16:9 and 4:3 screen proportions with the included remote.
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Offline arkpandoraTopic starter

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Re: What is a 640x400 LCD TV supposed to do with higher resolutions ?
« Reply #22 on: January 28, 2008, 09:11:23 PM »
Thanks Flashlab for your report.

The LG M1721TA and M1921TA models might suit a PAL Amiga better than the two Samsung models, because their native resolution is 1280x1024, that is both the same ratio as PAL Low and High Res modes, and an exact multiple.  Scaling would then bring better results.
 

Offline Flashlab

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Re: What is a 640x400 LCD TV supposed to do with higher resolutions ?
« Reply #23 on: January 28, 2008, 09:15:36 PM »
True but the Samsung can display 4:3 in the correct ratio. It has a switch to do that. Besides that the non-native resolutions look really good!
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Offline arkpandoraTopic starter

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Re: What is a 640x400 LCD TV supposed to do with higher resolutions ?
« Reply #24 on: January 28, 2008, 09:20:28 PM »
Good point.  But then at least the native resolution is not a multiple of the PAL one, so the monitor has to use anti-aliasing tricks, when a 1024-wide screen just uses several pixels instead of one.

OK, there isn't much difference between 1024 and 1050.
 

Offline Flashlab

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Re: What is a 640x400 LCD TV supposed to do with higher resolutions ?
« Reply #25 on: January 28, 2008, 09:28:01 PM »
Yeah I know, but somehow this monitor does that really good. I have seen some TFT screens that really suck at this but the Samsung does a great job. Damn I need pictures to show you ;-)!

Only "problem" is that I haven't been able to set a decent 320x240 resolution for now...
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Offline arkpandoraTopic starter

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Re: What is a 640x400 LCD TV supposed to do with higher resolutions ?
« Reply #26 on: January 28, 2008, 09:38:54 PM »
What's the "problem" with 320x240 ?
 

Offline Flashlab

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Re: What is a 640x400 LCD TV supposed to do with higher resolutions ?
« Reply #27 on: January 28, 2008, 09:44:21 PM »
The resolution isn't filling the screen enough (about a quarter). Must try some more tweaking in CGXMode.

This is no problem for AGA screens because those are connected through S-Video/SCART.
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Offline arkpandoraTopic starter

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Re: What is a 640x400 LCD TV supposed to do with higher resolutions ?
« Reply #28 on: January 28, 2008, 09:52:28 PM »
I thought you were talking about PAL Low Res, but if I understand you well your 320x240 is a custom mode of the graphic card.

So you can confirm that PAL Low Res 320x200(256) doesn't create problems when displayed through the SCART or S-Video input.

I will probably buy a monitor tomorrow, so the fate of my computing future is resting with you right now.
 

Offline Flashlab

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Re: What is a 640x400 LCD TV supposed to do with higher resolutions ?
« Reply #29 from previous page: January 28, 2008, 09:58:32 PM »
Yeah I mean RTG modes; for playing around with emulators. For ScummVM I use 640x480 with double size screens.

The PAL screens work fine because they are handled differently; you do have to switch manually though but that's not a big problem for me.

EDIT: Don't put too much stress on me ;-)
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