GMail no longer supports Quote Selected Text, so replies have become
laborious - bear with me.

On Mon, Aug 14, 2017 at 1:47 PM, Felix Miata <mrmazda@...> wrote:

>
> What does xrandr in a terminal report?


xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 2560 x 1440, maximum 2560 x 1440
default connected primary 2560x1440+0+0 0mm x 0mm
   2560x1440      0.00*
   1600x1200      0.00
   1280x1024      0.00
   1280x800       0.00
   1024x768       0.00
   800x600        0.00
   640x480        0.00


> Is there a firmware package for NVidia hardware that needs to be installed?

No idea.  Maybe, since the CentOS installed only works in "basic
graphics mode" (cleverly hidden under the troubleshooting menu in the
GRUB menu).  One would think that the OS installer would take care of
that or at least warn the user to go and get them if installing them
would otherwise violate someone's conscience.  You would be wrong, but
one would think.

grepping the RPMs installed, I see
xorg-x11-drv-nouveau-1.0.11-4.el7.x86_64 (in addition to many other
xorg packages including xorg-x11-server-Xorg-1.17.2-22.el7.x86_64 )


>
> Do either 'dmesg | grep fail' or 'systemctl | grep fail' provide clues?

Yes, both fail to provide clues.


> According to Wikipedia, the M2000 was released 2016-04-08. CentOS 7 provides
> server 1.17.2, which is older, and kernel 3.10, which is much older. The OP
> reports your system had been working with proprietary NVidia drivers. Could it
> be that that was because required M2000 support in FOSS hadn't been backported
> to CentOS7?

You got me.

Searching through the repos I have enabled (one of which must include
the NVidia proprietary drivers because ...) I see  kmod-nvidia.  It's
that patch that dorked my machine late last Thursday.  I'm reluctant
to put those back on.  They *work* fine, but if patches are going to
break things (which appears to be the case but I can't be certain).

I appreciate your reply!!


Peter