No monitor after upgrade 10.10 to 11.04

[loy66]

I upgraded from 10.04LTS to 10.10 dell display moniter worked. Then upgraded to 11.04 and get no display. I can hold the Shift key down during boot and get Grub menu, using the Linux---- (recovery) and get a command prompt. If I run "sudo startx" , I get a fatal error " nvidia module" not found. How do I get the nvidia module installed from command prompt? All my problems started originally form installing NVIDIA GeForce 210 display adapter ( for dual screen & HDMI connection to my LCD flat screen TV). My motherboard has a built-in GeForce display adapter. I was going to re-install the whole Ubuntu 11.04 but it will not boot from my CDROM. I can boot "Puppy Linix" with my CDROM. Puppy Linux works great and on my monitor. I have no idea why Ubuntu 11.04 will not boot. http://ubuntuforums.org/images/icons/icon9.gif

[moog10538]

Similar problem here.

I've just done a fresh install on a system with two nVidia GeForce 210 cards (triple-monitor setup). Ubuntu fails to boot if the proprietary driver is enabled; it boots fine if the driver is disabled.

Anybody have any ideas?

[loy66]

I spent so much time trying to get Ubuntu 11.04 to work. I just reinstalled Ubuntu 10.04LTS in a new partition. Now I am trying to reinstall all the other programs that I lost. I don't know why I am running Linux anyway. I spend more time trying to get adapter cards like GeForce 210 to work than I ever did with Windows!

[aapst12]

When trying to boot the upgraded OS, after the grub menu, I got no signal to the monitor, causing the monitor gave a message "entering power save mode".

My problem was solved as follows:
The cable at the back of the vga card is split in two, for the purpose of a dual monitor. I disconected my monitor from the "2" female cable to the "1" female cable. Then I rebooted. Everything worked.