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- From: kevinm@ocf.berkeley.edu (Kevin Miller)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: REALLY confused about monitors - for a1200
- Message-ID: <1e1a84INNavr@agate.berkeley.edu>
- Date: 13 Nov 92 22:29:24 GMT
- References: <1992Nov13.135835.29442@decuk.uvo.dec.com>
- Organization: U.C. Berkeley Open Computing Facility
- Lines: 65
- NNTP-Posting-Host: tornado.berkeley.edu
-
- In article <1992Nov13.135835.29442@decuk.uvo.dec.com> hilton@bahtat.dec.com writes:
- >
- >1200 has a number of different modes:
- >
- Here's the way I understand it. If I've made any mistakes, feel free to
- correct me.
-
- > 1280 x 400
- Will work on 1084 (interlaced) or VGA (non-i)
-
- > 1280 x 200
- Will work on 1084 (with scan lines) and VGA (no scan lines). Games will not
- work with VGA monitor.
-
- > 800 x 600
- Multi-sync required.
-
- > 640 x 690
- MS required.
-
- > 640 x 480
- 1084 (interlaced), VGA (non-interlaced)
-
- > 640 x 400
- Same as 640x400
-
- > 640 x 200
- Same as 320x200
-
- > 320 x 400
- > 320 x 200
- 1084 will work with both, but 320x400 will flicker and 320x200 will have scan
- lines. VGA will work wil both, without flicker and scan lines. In general,
- games will not run if you use the VGA monitor because they games
- don't tell the computer to promote the screen.
-
- > All modes offer 256,000 colours from a palette of 16.7m.
-
- Yep.
-
- > Would a SVGA monitor be able to DISPLAY all of these,
- > with/without flicker?
- > Would a multisync be able to DISPLAY all of these
- > with/without flicker?
- >Would the 'standard' C= 1084 monitor work ok?
-
- A proper multi-sync will work in all modes (like the C= 1960), but opting
- for either a VGA or 1084 limits you to certain modes. If you have the money,
- get the MS; otherwise look at the screens that the 104 and VGA screen will
- give you and choose.
-
- >If anyone could explain what overscan and interlace mean,
- >and what they would mean to a user, I would also be grateful.
-
- Interlace is a way of displaying images. Non-interlaced images are displayed
- line after line. Interlaced images are a little differen: First the odd lines
- are displayed, and then the computer/monitor goes back and displays the even
- lines. This causes the characteristic "flicker" that most people hate.
- Flicker in the 640x400 modes will be worse than flicker in the 800x600 modes.
-
- Overscan means that the screen goes beyond the edge of the viewable monitor
- space. This is the case on TV's for example. Look at most IBM clones. There
- will be a 1" or so strip all around the screen that it black. An overscan
- screen would have the image fill the entire screen plus a little more. This
- is very important for video work.
-