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My problem is as follows: I have recently installed a fresh copy of Ubuntu 12.04 LTS, and upon booting, the DisplayPort monitor loses signal immediatedly after the Ubuntu splash screen.

A brief history of what I've done and tried:

  1. I installed Ubuntu, allowing the OS to download updates while installing, and my monitor lost signal immediately after splash the first time I booted.
  2. I re-installed Ubuntu not allowing the OS to download updates, and my computer booted through splash screen successfully.
  3. I updated the nVidia drivers, selecting "nvidia-current" and then rebooted. I was again met with no signal immediately after splash.
  4. I tried editing the boot command in grub by adding "nomodeset", disabling splash, etc. and experienced no change; the monitor still received no signal.
  5. I tried various versions of the nvidia drivers and experienced no change.
  6. I FINALLY tried removing my DisplayPort cable, instead connecting the monitor via HDMI. I have signal just fine!

Once I log in with HDMI connected, I can swap the cables for DisplayPort and I receive signal just fine as well. I just can't boot with DisplayPort connected.

Some background about my relevant (and maybe some irrelevant) hardware:

  • Motherboard: Asus Maximus V Gene
  • GPU: EVGA GeForce 660 Ti
  • Monitor: Dell S2340T

I'm still relatively inexperienced with Linux, so I'm not sure what to try to get DisplayPort working through boot. Any suggestions would be much appreciated!


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