Finally fixed the problem - not 100% but I'm now happy! First of all including nomodeset in my grub config file had no effect whatsoever - perhaps this is just one of the examples that defies the usual fix. Remember my machine is a desktop with proprietary drivers(installed during the upgrade) for a NVIDEA card
So I fixed it like this - taking all http://askubuntu.com/questions/362722/how-to-fix-plymouth-splash-screen-in-all-ubuntu-releases/ the usual precautions to ensure I had a reversion path back should things go wrong. I will not pretend that I knew everything I was doing, but took things on trust as I say ensuring I could revert back. I used these 2 links as my inspiration:- http://askubuntu.com/questions/362722/how-to-fix-plymouth-splash-screen-in-all-ubuntu-releases/ http://askubuntu.com/questions/6033/enabling-nvidia-driver-messes-up-splash-screen >From within a terminal screen:- 1. sudo apt-get install v86d 2. sudo vi /etc/default/grub (I am a vi man but other editors could be used) 3. Added the following 2 lines in the appropriate place in the file - commenting out any conflicting lines and of course saving the file GRUB_GFXMODE=800x600x32 GRUB_GFXPAYLOAD_LINUX=keep 4. At the terminal prompt I then typed the following echo FRAMEBUFFER=y | sudo tee /etc/initramfs-tools/conf.d/splash sudo update-initramfs -u sudo update-grub 5. Exit the terminal screen, Shutdown and Reboot Comment:- There are ways of finding out the screen resolution capabilities of the NVIDEA graphics card and I wanted 800x600x32 because of my low vision. Read the second link above - but do not use hwinfo or install it - find out the video capabilities inside a grub command session. Added Bonus:- This fix also fixed the fsck echo also - so that is no longer displayed even though I suspect it still runs. Remaining problems:- Ubuntu logo is displayed on startup but after it disappears the flashing dots remain for a while. No Ubuntu logo appears on shutdown. All well known problems, but a fix for these will go on the backburner. Thanks for your interest.
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