On Friday, April 05, 2013 06:53:14, Sean Dague wrote: > On 04/04/2013 07:38 PM, Chris Knadle wrote: > > Briefly spoke with Sean about this last night. > > > > I've got this maddening NVIDIA driver problem; the IBM LCD screen for > > this 15.4" Phillips LP154W02-TL06 has an EDID that is SNAFU such the > > newer Nvidia driver (which checks the EDID) will only allow going to > > 1600x1050 mode. This then causes problems trying to do TwinView between > > monitors (or using a projector) whenever the other monitor doesn't > > support this resolution -- which naturally is always the case. > > > > I've tried using these options in xorg.conf: > > Option "UseEDID" "False" > > Option "UseEdidFreqs" "DFP-0:False" > > > > ... but when I use these, starting Xorg causes Xorg to hang, and the > > screen to go black. Restarting X doesn't help -- never comes back. > > > > If someone else has gone through this and thinks they might know of a fix > > (however doubtful it may be), please email this thread. I've put a lot > > of effort into this, and right now I'm down to making a custom EDID file > > by hand based on known Modelines, and it's a rediculous job. > > The following is what my Device section looks like for my laptop (using > an nvidia card): > > Section "Device" > Identifier "Device0" > Driver "nvidia" > VendorName "NVIDIA Corporation" > Option "RegistryDwords" "EnableBrightnessControl=1" > Option "ModeValidation" "AllowNonEdidModes" > EndSection > > The "ModeValidation" "AllowNonEdidModes" is the thing that makes the > nvidia driver give up negotiating Edid, and just give you a default list > which lets you select all kinds of things.
Wow. Yep, that did it! Thanks... this is a relief. :) Using this setting causes fonts to be rendered at different sizes than before, but I don't care -- I think I know how to figure that part out. The option is mentioned in the README.txt.gz for the nvidia-kernel-source package, but it's much more obscure. I'm glad I asked... I might not have found it. -- Chris -- Chris Knadle [email protected] _______________________________________________ Mid-Hudson Valley Linux Users Group http://mhvlug.org http://mhvlug.org/cgi-bin/mailman/listinfo/mhvlug Upcoming Meetings (6pm - 8pm) Vassar College Feb 6 - Raspberry Pi Mar 6 - 10th Anniversary Meeting - Linux where you least expect it Apr 3 - Typography: Physical Art to Digital Art
