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I'm running Ubuntu 14 on a Macbook any my system froze so I performed a hard reboot. However when it came back up, it shows me the grub menu but no matter which kernel I pick the boot freezes with the line:

irq 22, io mem 0xd3489200

What does this mean? Is this indicating a hardware fault?

Google finds me several similar posts but no solutions.

Cerin
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  • This could be a duplicate of https://askubuntu.com/questions/508089/what-is-the-diference-between-a-normal-boot-and-resume-option-after-a-recovery-b . Could you try booting with nomodeset boot option – user.dz Oct 19 '15 at 10:14

2 Answers2

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You can try two things:

1 easy solution

Just unplug (from electricity) your computer for 10 seconds, plug again and it might work! (yes it does)

2 if it doesn't work (edit grub)

The solution was in Grub go to: Advanced Options There I went to the 'Recovery mode option' prees 'e' to go to the editor. edit the line

linux /vmlinuz-3.0.2..... nomodeset acpi=off

press F10 to boot. That way it did boot, but it didn't recognize the keyboard.

This confirmed with an 'acpi' issue.

The next thing I did is a restarted the computer and went testing the different acpi options in this guide.

The one that did it for me was

nolapic

F10 once again and then my keyboard responded from there I ran 'fsck'. and start again.

Community
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elviejo79
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0

I'm still not sure what the original issue was, but when I rebooted using a "recovery kernel", that seemed to get around the issue, and now my machine boots normally.

Cerin
  • 6,485