I do not know where to start on suggestions as there can be many reasons. If you run Boot-Repair and post the link to the BootInfo report we can see...
While almost all the time you can resize and move partitions around. The only time it does not work is the one time you are in a hurry and do not do...
If you download liveCD version you do not have to reinstall. But booting from the Ubuntu live DVD will not let your save it as it only is in RAM and...
I am surprised it does not work.
The link I posted above to another user with a HP Envy 6 does not mention any video issues. Perhaps he did not have...
If not already dual booting, I might put Ubuntu on the 500GB drive. Then Windows still has it boot loader on its drive and can be directly booted if...
Because of the way Windows 8 works it is difficult to dual boot when hibernated. I would just leave that drive as Windows. And boot with grub on the...
Are you booting with the nVidia chip or with the Intel chip. Some systems have that as a setting in UEFI/BIOS. And then what settings you use to boot...