[Bug 990411] Re: Ubuntu 12.04 nouveau lockup with GTX580

[Blempis]

Core i7 920, Gtx 580  - freeze and can't install

Change Gtx 580 to Gts 250 and Cd update install from 10.04 to 12.04 goes
through but with several error messages. After rebooting mouse pointer
is there - doesn't move - and disappears after a while.

Computer was connected to the internet via android phone. Now it can't
load updates.

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Title:
  Ubuntu 12.04 nouveau lockup with GTX580

Status in “libdrm” package in Ubuntu:
  Confirmed

Bug description:
  Discussion and workarounds here: http://askubuntu.com/questions/126193/ubuntu-12-04-stuck-at-the-login-screen
  specs:
  CPU: Intel i7 980x extreme edition, Motherboard: Asus Rampage III extreme, RAM: 6GB, GPUs: 2x NVidia GTX 580 in SLI, HDD: Western digital 1TB green power (20GB for root (/), 6GB for swap, all the rest for /home)

  Probably affects GTX590 too.

  
  There are two problems:
  1) During installation there is freeze right after the lightdm(?) GUI starts. I see the cog/keyboard/accessibility on the top right, but cannot click them. The Try Ubuntu/Install Ubuntu window with the languages on the left never comes up, or sometimes a distorted and unusable version of it comes up. 
  [workaround: http://askubuntu.com/a/126416/57256]

  2) If you use the workaround or the alternative installer to install (or even an upgrade from a fresh 11.10), then you get a freeze right after the lightdm login screen comes up. 
  [workaround: http://askubuntu.com/a/126336/57256]
  When pressing Ctrl-Alt-F1, the following message appears: 

  [drm] nouveau 0000:03:00.0: GPU lockup-switching to software fbcon

  The switch never happens though, I only had the lockup part.

  As outlined in the discussion, the problem is fixed with sudo-apt-get
  update, sudo-apt-get upgrade, and then installing the nvidia driver. I
  therefore assume there is something wrong in the nouveau driver. Also
  note that 11.10 does not have this problem. Also, this bug affects
  both 32-bit and 64-bit.

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