On Sat, Oct 17, 2009 at 12:34 PM, Alan McKinnon <alan.mckin...@gmail.com>wrote:
> On Saturday 17 October 2009 21:26:41 Kevin O'Gorman wrote: > > On Sat, Oct 17, 2009 at 12:18 PM, Alan McKinnon > <alan.mckin...@gmail.com>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
