[R-sig-Fedora] rgl.snapshot only captures a small portion what's visible in the RGL device window on CentOS 7

[Tom Callaway]

On 01/11/2016 03:52 PM, Wittner, Ben, Ph.D. wrote:

> I started trying to do this, but I'm stuck.
> I started with http://us.download.nvidia.com/XFree86/Linux-x86_64/340.96/README/installdriver.html , which led me to http://us.download.nvidia.com/XFree86/Linux-x86_64/340.96/README/commonproblems.html#nouveau . I created /etc/modprobe.d/disable-nouveau.conf as instructed then rebooted, but the nvidia installer found the nouveau driver running anyway, so it wrote two more .conf files (one in /usr/lib/modproe.d and the other in /etc/modeprobe.d) and then halted. I rebooted and tried the installer again, but again it noticed the nouveau driver running.
> I suspect this is because the initial ramdisk image contains Nouveau because, even though I've done systemctl set-default multi-user.target, during boot I still see something that looks like a graphical screen display for a while before it drops back to a text mode to display the login prompt.
> So, following the instructions, I tried to rebuild the initial ramdisk image. The nvidia documentation does not say how to do that, so I Googled and found https://wiki.centos.org/TipsAndTricks/CreateNewInitrd , which unfortunately gives instructions only for CentOS 5 and CentOS 6, but not CentOS 7. I'm afraid to do the wrong thing, so I'm stuck.
> Any suggestions would be appreciated.
> \

I have not tried it personally, but these instructions seem correct:

http://www.dedoimedo.com/computers/centos-7-nvidia.html

Basically, edit the grub2 cmdline to include the extra option:

  rdblacklist=nouveau

hth,

~tom

==
Red Hat