[Bug 989372] Re: 12.04 usb drive boot graphic problems

[BelJoost]

Unfortunately the workaround in #5 does not work for me. Using those
steps I seem to be able to install, but after the installation has
completed and the server has rebooted the screen stays blank and after a
while the monitor shows a message that the signal it receives is not
compatible. I tried to create an install usb with unetbootin and the
result was the same.

I tried to add "nomodeset" by editing the grub.cfg and txt.cfg. I
replaced "quiet" with "nomodeset". But it didn't help.

Because 10.04 works without a problem I gave up on 12.04 and returned to
10.04. I hope this issue is fixed before 10.04 EOL.

If copying files from the 10.04 installation usb could fix this I am
happy to try. If someone could provide the filenames of the files to
replace I will give it a shot.

I'm using an Asrock N61P-S mainboard with embedded NVIDIA GeForce 6150SE
/ nForce 430 GPU.

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https://bugs.launchpad.net/bugs/989372

Title:
  12.04 usb drive boot graphic problems

Status in “grub-installer” package in Ubuntu:
  Confirmed

Bug description:
  I am trying to boot from a USB drive containing 12.04. I created the
  boot disk from 10.04. When I boot from the USB drive instead of seeing
  the boot screen to select boot options (install, run from disc, etc.)
  I see a black screen with a grey square in the lower left corner of my
  screen.

  If I cursor down to where install is and select the install screen
  displays fine.

  If instead I wait out the boot screen and the OS continues to load I
  get a garbled screen filled with neon colored patterns, and nothing
  else is viewable. If I right click or move the mouse around the screen
  there are many changes in the patterns, but still nothing viewable
  except the neon garbled mess. (however I can flip over to terminal and
  it works fine.)

  I also had graphic issues with Natty and Oneiric, so have resorted to
  reinstalling and staying on Lucid. Would really like to find out why
  newer versions of Ubuntu (running Unity, though not sure if that is
  the issue) do not work well on this laptop though, since it is not old
  and is a pretty powerful laptop.

  Dell Inspiron 1720 laptop
  GeForce 840M GS graphics card
  4GB Ram

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