X not working after upgrade

[Esperanto]

It might be a coincidence that X was not comming up after the last dist-upgrade I did on 1004 cause I also added some hardware recently but I thought I'd post it here in case someone else has the same issue. I got a warning in Xorg that nvidia failed to initialize the graphics device in /var/log/Xorg.0.log

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(EE) Oct 14 07:08:42 NVIDIA(0): Failed to initialize the NVIDIA GPU at PCI:3:0:0.  Please
(EE) Oct 14 07:08:42 NVIDIA(0):     check your system's kernel log for additional error
(EE) Oct 14 07:08:42 NVIDIA(0):     messages and refer to Chapter 8: Common Problems in the
(EE) Oct 14 07:08:42 NVIDIA(0):     README for additional information.
(EE) Oct 14 07:08:42 NVIDIA(0): Failed to initialize the NVIDIA graphics device!


Eventually I created a custom boot entry for grub in /etc/grub.d/40_custom by adding to the end of the linux line the option (just copy the existing one from /boot/grub/grub.cfg):

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vmalloc=256MB

then running update-grub and checking in the file /boot/grub/grub.cfg which entry number the new entry and adding that number to /etc/default/grub as the GRUB_DEFAULT (I also set the GRUB_HIDDEN_TIMEOUT=2 and GRUB_HIDDEN_TIMEOUT_QUIET=false)

then ran another update-grub and rebooted and I got X again.

[Esperanto]

I noticed that playing h264 content was still bad quality (white and red area's mainly in what had to be dark black). I increased the vmalloc to 512MB. now it does not show those strange collors anymore however sometimes the movie halts and then plays the next few seconds very fast.

Any suggestions?