21 Jul
2017
21 Jul
'17
8:31 p.m.
Peter Laws composed on 2017-07-21 14:29 (UTC-0500):
New Dell T5810 with above card. Put Centos 7 on it
(after finding the
"use a basic video driver" selection under "Troubleshooting"). Got
TDE v.newest installed just fine (after reading all steps in the
directions - sad considering I'd done this before ...).
But how do I adjust the video? The stuff in RandR
only seems to want
to give me 1024x768 which seems ... skimpy ... on a pair of P2416Ds
which are 2560x1440 each (I've not connected the 2nd display yet).
What am I missing? Do I need to ditch the Nouveau
stuff and go for
some sort of proprietary driver? I'm not opposed to either direction,
but I really have to have better than 1995's idea of hi-res. :-)
Or is there a tool I'm missing?
Sometimes "troubleshooting" instructions say to include nomodeset on the kernel
cmdline. You do not want to do that if you want an acceptable FOSS Xorg driver
to function. Nomodeset can work with the proprietary NVidia driver, but it
blocks use of modeset and nouveau Xorg drivers.
I couldn't find whatever doc you read that in, but "use a basic video
driver"
suggests what it says, which in Xorg means either FBDEV or VESA, crude generic
drivers, with which highest video mode available is typically 1024x768. Whatever
you did to cause use of either of those needs to be undone if that's what did
happen. To find out which driver is being used, inspect /var/log/Xorg.0.log for
a large number of sequential lines beginning around two screens down from the
top of the file. Look for:
fbdev(0)
vesa(0)
modeset(0)
nouveau(0)
With that Quadro, I'm guessing modeset is most likely to be the best of the FOSS
bunch. The modeset driver is integral to the Xorg server, so typically the
easiest way to have it used is to not have the nouveau driver installed. If
neither modeset nor nouveau produce acceptable results, the proprietary NVidia
driver is called for.
Share Xorg.0.log via pastebin if the above isn't enough help.
--
Not a CentOS user.
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
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