You are in luck, I still have my old xorg.conf file that you can use as an example.
The key is the* Option "CustomEDID" "DFP-0:/etc/X11/VX2025WM-EDID.bin"* in the screen section of the xorg.conf combined with the binary (non-ascii) version of the edid file (named VX2025WM-EDID.bin in this example) I verified that your monitor does have the correct checksum so I am not sure why it doesn't work correctly for you. This is worth a try though. I am including the binary version of your edid that I typed in, just in case you only had the ascii version. Also, I found this was what the problem was by examining my Xorg.0.log and searched for errors, have you looked there to see if it is complaining at all? To modify the edid on my monitor, I used a boot CD provided by ViewSonic to correct a similar problem and customized it for my purpose, I think I still have the ISO around if you are interested. It's only about 25 MB if I remember correctly. Let me know if you need any more help. Jason On Sun, Nov 28, 2010 at 10:48 PM, John Jason Jordan <[email protected]>wrote: > In my peregrinations through the web I came across the possibility of > modifying the EDID in the monitor, as well as the possibility of adding > a line in xorg.conf to force the driver to read the EDID from a file. > The former can be done with a shareware tool called Powerstrip. > Unfortunately, it runs only on Windows, and I have no Windows on the > laptop. It is also scary. > > As for getting the EDID into a file, I did that with a utility called > monitor-edid. Here is the ASCII version: > > 00 ff ff ff ff ff ff 00 24 4d 87 28 00 00 00 00 00 0f 01 03 80 21 15 78 > 0a bc a5 98 58 55 8b 28 24 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 > 01 01 01 01 01 01 1c 2f 90 d0 60 1a 0f 40 20 30 13 00 4b cf 10 00 00 19 > 45 27 90 d0 60 1a 0f 40 20 30 13 00 4b cf 10 00 00 19 00 00 00 0f 00 b3 > 0a 32 b3 0a 28 14 01 00 32 0c 00 00 00 00 00 fe 00 4c 50 31 35 34 57 30 > 32 2d 54 4c 30 36 00 bf > > Not very helpful, eh? > > I can get the physical properties of the laptop display with xrandr (I > think). But I don't know how to put them into a file that the nVidia > driver will be able to understand. If you can remember anything about > how you did it, I'd be interested. > > > On Sun, 28 Nov 2010 15:59:08 -0800 > Jason Barnett <[email protected]> dijo: > > >FYI, it is possible to force X to read the edid from a file instead of > >the monitor. Had to do this for a couple of years with my Viewsonic > >monitor, finally I modified my monitor's firmware to match what the > >driver was wanting (different checksum) and have not had any problems > >sense. > > > >If you want details, let me know and I'll dig through my notes as I > >have forgotten the syntax for doing this.. > >Jason > > > >On Sun, Nov 28, 2010 at 3:00 PM, John Jason Jordan > ><[email protected]>wrote: > > > >> On Sun, 28 Nov 2010 13:55:32 -0800 > >> Bill Barry <[email protected]> dijo: > >> > >> >On Sun, Nov 28, 2010 at 12:57 PM, John Jason Jordan > >> ><[email protected]>wrote: > >> > > >> >> I want as much screen real estate as possible for my presentation. > >> >> The projector will project 1400x1050 and can accept from my > >> >> computer up to 1600x1200. Therefore, I want my laptop to do > >> >> 1400x1050 or higher, in a 4:3 ratio. The nVidia driver offers me > >> >> only 1680x1050, 1280x1050, or 1280x960, and lower resolutions. > >> >> Thus, with the nVidia driver I can project 1680x1050, which will > >> >> be distorted to the audience, or I can project 1280x960, which > >> >> will not be distorted to the audience, but gives me less screen > >> >> real estate than the projector is capable of. > >> >> > >> >> The nouveau driver gives me options of 1680x1050 or 1400x1050, and > >> >> lesser resolutions. By setting my laptop to 1400x1050 I can > >> >> project an undistorted 1400x1050 to the audience. My laptop will > >> >> be slightly distorted, but I am looking at it right now and it is > >> >> tolerable. After the presentation I can set my laptop back to > >> >> 1680x1050. > >> > >> >So there is a problem getting the nVidia driver into the resolution > >> >you want and a problem getting the nouveau driver to display on two > >> >monitors. Why not reverse the problem. Go back to the nVidia driver > >> >at 1280x960 and get dual monitors working. Then try to find out why > >> >the nVidia driver is not offering you the resolution you want. It > >> >seems the resolution problem would be easier to solve. > >> > >> That is what I tried to do from the beginning. By reading Xorg.0.log > >> I finally determined that the nVidia driver was misinterpreting the > >> EDID data from the laptop screen. In other words, fixing the > >> resolution problem in the nVidia driver required a bugfix from > >> nVidia. Meantime, I knew that the nouveau driver would give me the > >> resolution I wanted because the Lucid live CD uses the nouveau > >> driver and it offered me 1400x1050. I also knew that it was possible > >> to get the nouveau driver to connect to the projector because others > >> have done so. And from reading the troubleshooting page on nouveau's > >> site I'm pretty sure I can fix what is wrong. I've just had other > >> things to do so far today. But before the day is out I'll probably > >> have the external monitor working. (Crossing fingers.) > >> _______________________________________________ > >> PLUG mailing list > >> [email protected] > >> http://lists.pdxlinux.org/mailman/listinfo/plug > >> > >_______________________________________________ > >PLUG mailing list > >[email protected] > >http://lists.pdxlinux.org/mailman/listinfo/plug > _______________________________________________ > PLUG mailing list > [email protected] > http://lists.pdxlinux.org/mailman/listinfo/plug >
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