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rated 0 times [  3] [ 0]  / answers: 1 / hits: 1090  / 11 Months ago, fri, november 25, 2022, 12:07:19

I recently installed Ubuntu 12.04 LTS on my SONY VAIO VPCEH (with Windows 7 Home Basic

previously installed). Sometimes when I boot in Ubuntu, following things happen:

  • Ubuntu loading screen seems to freeze.

  • Esc key doesn't show installation progress.

  • Hard-drive led doesn't glow.

  • caps lock and scroll lock keys keep blinking.

I've to manually restart my laptop. On restart, Ubuntu loads normally.

What can I do to recover from present situation?

More From » 12.04


This sounds like a IRQ Conflict Problem. But could also be a kernel Panic Problem. You should try to add some boot parameters and check if they might help. You can add those to the grub menu.

More here:

Boot Options (English)

Boot Parameters (German)

I sometimes had to use the following: (even in combination)


noapic, noagp, noapm




[#35657] Saturday, November 26, 2022, 11 Months  [reply] [flag answer]
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12 Months ago