In recent years I have noticed that video cards die distressingly soon. Often with strange symptoms that make it appear to be something more basic. I do have to admit that the most recen time (about two weeks ago) it was in fact the monitor. That was an HP 22" LCD monitor only 5 years old. My previous monitor was a Sony CRT that went back to the early 90's.
I can only suugest that you try swapping out starting with whatever you can do cheaply. Especially if you can borrow a component for testing. I do have an extra video card but I'm not in Davis so you'd have to wait till the regular Lugod meeting. Richard On Thu, Sep 16, 2010 at 5:13 PM, Thomas Johnston <[email protected]>wrote: > I am running Kubuntu 10.04 (64 bit) on my Dell Vostro 1500 and using > an Acer AL2216W as a second monitor. Everything was working great > until last Monday morning. I powered up the computer, activated the > external monitor and the max resolution was 1280x1024 (the native > resolution is 1680x1050 - same as my laptop display). I didn't do > anything to modify any video settings so I don't know exactly what > prompted the change; however, there were about 10 "bug fixes" the day > before. Looking at the history of fixes I don't see anything that > looks likely to cause a problem, but I am certainly not a Linux > expert. > > Anyway, I have spent the last 4 days doing everything I can to make it > work again: updated drivers, uninstalled/reinstalled drivers, deleting > the xorg.conf file and having one auto generated, manually editing the > xorg.conf .... nothing has worked. In fact, the situation is now > worse. I can't even get the monitor to display anything anymore - just > a black screen. I think the monitor itself is fine, if I turn it on I > see the "ACER" logo appear, then I briefly see a dialog box that says > "no signal", and then it goes blank. I don't have a great > understanding of the xorg.conf file, but I was very careful when > editing it. I read all of the NVIDIA documentation online and I found > examples of xorg.conf files online from people with this same monitor > who claimed to have it working, so I don't think I used a refresh/sync > rate beyond what the monitor is capable of (I didn't smell any > smoke!). My Google searches have indicated that many people have had > problems reading EDID data from this monitor. I have even plugged it > into a Windows machine with an ATI graphics card and same > thing...blank screen. > > I checked the /var/log/Xorg.0.log file and I see this warning: > (WW) Sep 16 15:07:43 NVIDIA(GPU-0): Unable to read EDID for display device > CRT-0 > > there are no errors (EE) generated. > > Other system details in case it is relevant: > The monitor is connected to my graphics card via the VGA port (my > laptop doesn't have any other display ports; however the monitor does > have a DVI-D connection) > NVIDIA Driver Version: 256.53 > Server Version: 1.7.6 > NV-CONTROL Version: 1.23 > Graphics Card: GeForce 8600M GT > > > My question is: do you think the monitor is toast or would work again > if I could get a working EDID.bin and/or xorg.conf file (perhaps from > kind soul on the interwebs)? > > > thanks in advance, > > Thomas > _______________________________________________ > vox-tech mailing list > [email protected] > http://lists.lugod.org/mailman/listinfo/vox-tech >
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