On Thursday 21 February 2008 12:04:48 Johnny Hughes wrote: > Anne Wilson wrote: > > On Thursday 21 February 2008 09:56, Anne Wilson wrote: > >> On Tuesday 19 February 2008 13:02, Johnny Hughes wrote: > > <snip> > > >> Maybe you are right about the driver not handling the dvi port > >> correctly. I really didn't want to go down the route of the proprietary > >> drivers, so maybe I will have to go back to the analogue cable. > >> > >> I will try your version this morning and let you know whether it helps. > >> This is the last ditch. If it doesn't help, I'll change the cable back > >> and re-run system-config-display. > > > > Comparing your scripts with what I'd actually put into xorg.conf, there > > were some extra modelins from knoppix, but the only real difference was > > that I'd put the dri section in. I thought it unlikely that this affect > > it, but I've taken it out anyway. It still is blinking. > > If knoppix works perfectly and does not ever blink, then I would say it > is a problem with the nv Xorg driver in centos-5. If knoppix also > sometimes messes up .. still might be a nv driver issue that is common > to both OSes. > > The proprietary nvidia driver might fix that, it also adds much better > 3D performance if you are using that. > No. 3D doesn't have any attraction for me, so that's not a problem. > The modeline stuff with the CentOS-5 nv driver might also make it work > correctly, if we were able to exactly define the 14 modes that I saw the > monitor supported from your initial sheet. I have to admit that I am > not an expert on constructing these modeline settings, but google > probably can explain exactly how to construct them. Found this: > > http://xtiming.sourceforge.net > > But if the analog cable works OK, that might be the easiest option. > Agreed. > > One last thought. I did install a wireless mouse and keyboard at the > > same time as the dvi cable. I have a feeling that the blinking tends to > > happen when I move the cursor with the mouse. Is it possible that there > > is interference from the mouse? > > I have never heard of this happening before, but it would be > theoretically possible, though not probable IMHO. If you hook up a > normal mouse and it goes away ... maybe so, that should be a fairly easy > test. > I doubt if it is the culprit. Logic aside, I have watched it carefully while I was working there this morning, and it blinked occasionally when I was not touching either keyboard or mouse. OTOH, it could be a sort of ping to the transmitter, I suppose, but if it were that I'd expect a regular pattern. I'll try the old PS/2 keyboard and mouse next time I have a longish session with the server. If I get any likely answers I'll let you know. Thanks for the help. Anne
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