boot fails after installation on x86_64

[GeorgeBeshers]

This is for Lucid beta1 and 3/22/10 nightly.

Existing x86_64 system with a dual GeForce GTX 295 graphics driver.
Two monitor's on the driver:
 - ViewSonic VX2000 @1600x1200 60Hz, and
 - Dell 3007WFP.@2560x1600 59.86 Hz

System installs and works find under Karmic. After I install Lucid beta1 (or
the nightly) I try to bring up the system and it hangs either in upstart or
the graphics driver.

I tried using chroot to 'apt-get dist-upgrade' and also install a few
additional packages with no luck.

I did not try to install the nvidia driver during installation---the only thing
special was tri-boot with a shared /boot and multiple / partitions for
different ubuntu versions. The last install I attempted I used a partition for /
and the existing 2G /boot partition and left the major XFS filesystems

[GeorgeBeshers (gbeshers-gmail)]

Further investigation,

1st I removed the second (older) Nvidia card on the grounds to
eliminate that as a possible issue--but this did not directly solve
the problem.

I then upgraded the BIOS on my P6TD MB from what came w/
the MB to the most recent one from ASUS (501) and that has
solved the problem.

I have not tried re-installing the second graphics card to verify
that piece of the puzzle.

George

[bbordwell (benbordwell)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug NUMBER, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.

2 work arounds to this bug. Detach the second monitor, or press alt+sysreq+k

Once you boot once you should be able to install the restricted drivers and get both displays working.