On Sat, Oct 17, 2009 at 12:56 PM, Richard Marza <[email protected] > wrote:
> ---- Original Message ----- > > *From:* Kevin O'Gorman <[email protected]> > *To:* [email protected] > *Sent:* Saturday, October 17, 2009 3:42 PM > *Subject:* Re: [gentoo-user] Desperately seeking modelines; xorg > 1.6.3.901-r2bleeds off the edges > > On Sat, Oct 17, 2009 at 12:34 PM, Alan McKinnon > <[email protected]>wrote: > >> On Saturday 17 October 2009 21:26:41 Kevin O'Gorman wrote: >> > On Sat, Oct 17, 2009 at 12:18 PM, Alan McKinnon >> <[email protected]>wrote: >> > > On Saturday 17 October 2009 20:58:00 Kevin O'Gorman wrote: >> > > > Modifying the monitor section made no noticeable change. There's >> still >> > > > a 24-pixel bleed off the right edge to begin with. I can fool with >> > > >> > > settings >> > > >> > > > to make it bleed left instead, but there's no setting that affects >> > > > pixel spacing. I like the cleaner monitor section, though. >> > > > >> > > > I'm back to thinking about modelines. Any better ideas? >> > > >> > > I'd try adjust the frequencies first, then try modelines. >> > > >> > > -- >> > > alan dot mckinnon at gmail dot com >> > > >> > > I'd try that too if I had a clue how to do it, let alone do it safely. >> > > Got >> > >> > any pointers to FMs? >> >> Safe frequency ranges are in the monitor's documentation. Do you have docs >> for >> your monitor (I'm using it's a CRT). >> >> You can safely reduce either horiz or vert range. As the electronics[1] >> age, >> the monitor's ability to correctly sync the start of the picture with the >> start of the display area deteriorates, especially at the upper bound. If >> reducing the upper bound of the horiz setting improves matters, that is >> indicative of this happening. >> >> [1] more specifically, electrolytic capacitors. They are temperature- >> sensitive. Silicon does not "wear out" as such. >> >> -- >> alan dot mckinnon at gmail dot com >> >> I have docs. They are not very informative. > > When I start it up, the left edge is fine, which is the sync edge. Because > of that and because I can adjust positioning left and right, and because the > problem arose abruptly with the reboot to a new Xorg, I rate the probability > of hardware problems low (but not zero of course). > > It appears to be a problem of horizontal spacing of the pixels. At it > stands there is not room for the last 24. > > -- > Kevin O'Gorman, PhD > > ------------------------------ > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.5.421 / Virus Database: 270.14.20/2441 - Release Date: 10/16/09 > 18:39:00 > > > What type of monitor do you have? > > How old is it? > > What is the screen size? > > What exactly do you mean by bleeding edges? Does the gui scroll when you > move you mouse towards the edges? is that what you mean by bleeding? > > Another thing; Do you have the monitor manual? It will tell you the proper > H and V sync rates at certain resolutions. > > Are you sure it supports that resolution? > > > It's as listed in the xorg.conf above: I can be sure because it's Westinghouse. It's a flat-screen. It's a couple of years old, I guess. It's new enough to talk to X and report: (II) MACH64(0): clock: 121.8 MHz Image Size: 410 x 308 mm which agrees with my ruler. In inches a little over 16" x 12" visible. The video card is sending all 1280 dot columns. I have a control on the monitor called "H position" and I can scroll one pixel at a time to change which 1256 dot columns I want to see of the 1280 that are sent. The image does not scroll with mouse movement. I have the manual. You are way over-optimistic about its contents. I had no better luck on the web site. The limits I've posted were acquired by X from the monitor itself. The monitor did fine until I rebooted yesterday. Its on-screen display shows it thinks it's doing 1280x1...@60hz. It's close of course, but not quite there. -- Kevin O'Gorman, PhD
