Date: Sat, 25 Sep 1999 18:04:39 -0400 From: "Louis A. Mamakos" <louie@TransSys.COM> To: Chuck Robey <chuckr@mat.net> Cc: FreeBSD Hackers List <freebsd-hackers@FreeBSD.ORG>, article@daemonnews.org Subject: Re: running single freq monitors (fwd) Message-ID: <199909252204.SAA78150@whizzo.transsys.com> In-Reply-To: Your message of "Sat, 25 Sep 1999 12:08:54 EDT." <Pine.BSF.4.10.9909251155130.87332-100000@picnic.mat.net> References: <Pine.BSF.4.10.9909251155130.87332-100000@picnic.mat.net>
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I've got a similar problem, not with a particular monitor, but with an application where the VGA console is connected to a cheapo VGA-to-NTSC base-band video converter. These things usually come with a windows driver which from what I can tell, simply causes the horizontal and vertical refresh rates to be configured correctly. I my application, I don't have to worry about what things look like before X gets up and running; nothing will be damaged by the non-standard sync frequencies - you can't can't see anything that's readable on the video display. In my /etc/XF86Config file, I've got sections like this: Section "Monitor" Identifier "PC/TV-1108" VendorName "AITech" ModelName "PC/TV-1108" HorizSync 31.5 VertRefresh 60-60 # 640x480 @ 60 Hz, 31.5 kHz hsync Modeline "640x480" 25.175 640 674 760 800 480 491 493 525 EndSection Section "Device" Identifier "motion771" VendorName "Number Nine" BoardName "FX Motion 771" VideoRam 4096 s3RefClk 16 Ramdac "ibm_rgb524" DACspeed 220 EndSection Section "Screen" Driver "accel" Device "motion771" Monitor "PC/TV-1108" DefaultColorDepth 24 BlankTime 0 Subsection "Display" Depth 24 Modes "640x480" Invert_VCLK "*" 0 ViewPort 0 0 EndSubsection EndSection In my configuration, I'm using an "old" Number 9 Motion 771 board, with 4MB of memory. This easily give me a 24 bit deep display, which is way overkill once you run it into the NTSC converter and then an RF modulator. In my application, I didn't have a bizzaro hardware interface on the display, so just about any old VGA board would probably work OK. If you're wondering, this is part of my home automation system; there's a TK application (actually, [incr tcl] and [incr widgets]) which displays interesting stuff like caller-id information, temperatures, stock quotes on channel 16 of the in-home RF distribution system. louie To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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