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Thread: How I Got My ThinkPad W520 To Reliably Boot in 12.04


good afternoon ubuntu community

i'd share piece of wisdom picked today. i've been troubleshooting ubuntu 12.04 lts on thinkpad w520 in spare time past month. ran 10.04 lts reliably year, after installing 12.04 had manner of issues.

thinkpad has nvidia quadro 2000m discrete graphics card, had been blaming partially problems, contradictory resources regarding nouveau vs. nvidia-current , nvidia optimus. digress. running nouveau driver, , it's working great far.

laptop not reliably boot. show blinking cursor, or purple screen, or black screen. after awhile recovery mode didn't work, freeze @ "starting udevd" phase.

way fixed thinkpad boot process editing /etc/default/grub:

code:
grub_cmdline_linux_default="nox2apic quiet splash"
then, obviously, running update-grub.

after adding nox2apic switch, laptop seems reliably boot again.

few other sources on internet confirm ongoing problem, not ubuntu:
https://bbs.archlinux.org/viewtopic.php?id=142191
https://bugzilla.redhat.com/show_bug.cgi?id=827164
https://bugs.launchpad.net/ubuntu/+s...ux/+bug/776999

hope see issue resolved soon, hope else out there thinkpad w520 comes across thread , saves them time.

cheers,
kirk



Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Hardware [SOLVED] How I Got My ThinkPad W520 To Reliably Boot in 12.04


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