[CentOS] IPv6: ADDRCONF(NETDEV_UP): link is not ready after upgrading to 7.6

Tue Jan 1 10:44:31 UTC 2019
Luigi Rosa <lists at luigirosa.com>

Gordon Messmer wrote on 30/12/2018 20:59:

>> Hi, after upgrading to 7.6, kernel 3.10.0-957.1.3.el7.x86_64, at boot instead 
>> of the GUI login screen I got two lines like this: 
> The output you see is probably unrelated to the problem.  Check the output of 
> "systemctl status gdm" and /var/log/Xorg.0.log

Thank you! Your suggestion has been very helpful.

systemctl status gdm  showed GDM running as expected, but /var/log/Xorg.0.log 
had many error lines like this:

(EE) FBDEV(0): FBIOPUTCMAP: Invalid argument

The solution proposed in https://www.centos.org/forums/viewtopic.php?t=55418 was 
not applicable because fbdev is correctly installed.

Widening the search I found this: 

The solution was to create a file  /etc/X11/xorg.conf.d/99-fbdev-fix.conf with 
this content:

Section "Device"
         Identifier  "Card0"
         Driver      "fbdev"

And restart.



+--[Luigi Rosa]--