From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <399D5780.99375EB4@FWS.Gov> Date: Fri, 18 Aug 2000 11:34:24 -0400 From: "Mark C. Otto" MIME-Version: 1.0 To: 9fans@cse.psu.edu Subject: [9fans] Monitors and VGADB References: , , <399D2F7F.AD34496D@compaq.com> <8njg4q$rob$1@nnrp1.deja.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Topicbox-Message-UUID: fcaf460a-eac8-11e9-9e20-41e7f4b1d025 I have a Micron 700FGx 17" monitor, and I was trying to work through the second part of the vgadb(6) to see if vga(8) will recognize my monitor. I found an entry in the database for a Micron 17FGx. I cannot figure out how to go from the information in the monitor manual to VGADB entry, particularly how to get shb, ehb, ht, vrs, vre, vt, hsync, and vsync. Since the VGADB specifications are in terms of character clocks, this seems to be from the generation of character terminals, which I cannot find a description of. I have been reading the PC Upgrade Bible to get an idea of how the video cards and monitors work. Ferraro, Richard E., Programming Guide to the EGA, VGA and Super VGA Cards is out of print. Could someone could give me a time period in the 9fans archives or an another book or article that would explain how to go from a monitor description like the one below to a VGADB monitor entry. Russ has talked about updating the graphics part of Plan9, but until then some conversion formulas would help, especially when I do not have the system installed to experiment with it. Thanks for any references or information someone can provide. Mark Otto Display 300x225mm of viewable area. Dot pitch 0.26mm (gives only one and does not specify horizontal or vertical) Horizontal frequency 30.0-69.0kHz Vertical frequency 50.0-160.0Hz Video band width 86MHz Maximum resolution 1280x1024@60Hz Preset modes: Frequency Signal Polarity Mode Resolution Horzontal Vertical Horz Vertical VGA 480@60Hz 640x480 31.47kHz 59.94Hz - - 640x480@75Hz 640x480 37.50kHz 75.00Hz - - 800x600@75Hz 800x600 46.88kHz 75.00Hz + + 832x624@75Hz 832x624 49.73kHz 74.55Hz - - 1024x768@70Hz 1024x768 56.48kHz 70.07Hz - - 1024x768@75Hz 1024x768 60.24kHz 74.93Hz - - 1024x768@75Hz 1024x768 60.02kHz 75.03Hz + + 1280x1024@60Hz 1280x1024 63.98kHz 60.02Hz + + There is no mention of interlacing in the monitor manual.