WarriorIng64,

>From the context of your AskUbuntu thread, I understand that the root
issue here is a mismatch between your video card's preferred VBE mode
(as returned by the 'vbeinfo' command in grub2) and the modes supported
by your external monitor.  If you are seeing the splash at shutdown but
only see the "No signal" error during startup, followed briefly by the
mountall message and then X, there are a couple of different
possibilities.

 - the nouveaufb kernel driver may be using the preconfigured resolution passed 
to it by grub.  If so, this is arguably a bug in the kernel driver; it should 
instead be probing with EDID to find a resolution supported by the external 
monitor.
 - the kernel driver may be fine, but plymouth is starting so late that it 
doesn't matter because you never see it on startup (bug #540801).

Please try the following and report back the results:
 - run 'echo FRAMEBUFFER=y | sudo tee /etc/initramfs-tools/conf.d/framebuffer 
&& sudo update-initramfs -u', then reboot.  If you then see the plymouth splash 
on startup, this confirms that you're seeing bug #540801.
 - boot with plymouth:debug=file:/var/log/plymouth-debug.log added to your 
kernel commandline and attach the resulting log file to this bug.
 - check the configuration used in X with 'xrandr', and configure grub to use 
the same mode by setting GRUB_GFXMODE in /etc/default/grub and running 
update-grub.

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https://bugs.launchpad.net/bugs/850895

Title:
  [nouveaufb] Plymouth refuses to show on boot, only at shutdown
  (mountall error messages)

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