[Bug 272247] Re: System freezes during boot, unless I hold a key down

[Alex Gryson]

Intrepid running on an HP Pavillion dv6527ea. 
Suffered from this bug, tried the suggested workaround (nolapic) which didn't work, the boot sequence would stop completely and not even keystrokes would nudge it along. 
Using acpi=noirq works like a charm though, apart from a few short pauses here and there which I didn't have with Hardy. Otherwise the problem is fixed for me. 

** Description changed:

  Once the Ubuntu splash screen loads with the progress bar that moves back and forth, it freezes. Holding down any key unfreezes the system, and it continues 
  loading normally, until I release the key, at which point it freezes again. Holding a key down again unfreezes the system again.
  
  Pressing Alt+F1 to show the output also freezes, so I know it isn't just
  the splash screen freezing, but the entire system.
  
  Once X loads, it works perfectly fine though, and I don't have to keep
  holding a key down.
  
  Update : This bug happens with 2.6.26 and 2.6.27 kernels with a computer
- that has Nvidia MCP67 motherboard. A known workaround that sometime
- works is to add nolapic to GRUB boot kernel options.
+ that has Nvidia MCP67 motherboard. A known workaround that sometimes
+ works is to add nolapic to GRUB boot kernel options. acpi=noirq is also
+ known to work.
  
  ProblemType: Bug
  Architecture: amd64
  DistroRelease: Ubuntu 8.10
  NonfreeKernelModules: wl nvidia
  Package: usplash 0.5.23
  ProcEnviron:
   PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: usplash
  Uname: Linux 2.6.27-3-generic x86_64
  
  ----------
  Possible systems affected include:
  Nvidia MCP67
  HP Pavilion DV6620es
  HP Pavillion DV9700z
  Compaq Presario F700
  Sony Vaio PCG-GRT-815E - from the Mandriva errata
  HP DV6745us - from a duplicate
  HP DV6545eg Notebook - from duplicate
  HP DV6736nr

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System freezes during boot, unless I hold a key down
https://bugs.launchpad.net/bugs/272247
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