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Wilfred

Member

Registered: 2009-05-19

Posts: 5

[SOLVED] Screen corruption on boot following kernel upgrade

I upgraded my kernel (and x drivers IIRC) earlier this week on my Dell Vostro laptop. It's now showing severe screen artifacts on boot (specifically when after I've entered my password and it mounts the root partition):

http://i.imgur.com/kQwhJEU.jpg

then the screen goes black.

Using Ctrl-Alt-F2 doesn't give me a text console, so I suspect the newer kernel (the framebuffer?) isn't working correctly.

I can see the GRUB boot screen fine, so I don't think any hardware has suddenly failed: http://imgur.com/IaVLunk

Am I the only one seeing this? How do I go about debugging it?

-- mod edit: img->url.  Please read forum guidelines for image sizes.  Trilby --

Last edited by Wilfred (2014-07-20 13:36:03)

clfarron4

Member

From: London, UK

Registered: 2013-06-28

Posts: 2,170

Website

Re: [SOLVED] Screen corruption on boot following kernel upgrade

Have you tried downgrading your kernel and drivers for X?

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karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: [SOLVED] Screen corruption on boot following kernel upgrade

https://bbs.archlinux.org/viewtopic.php?id=183088 ?

ugjka

Member

From: Latvia

Registered: 2014-04-01

Posts: 1,952

Website

Re: [SOLVED] Screen corruption on boot following kernel upgrade

It's a bug in kernel 3.15
The workarounds are either downgrading you kernel to kernel 3.14.6 or installing linux-lts kernel

Look here
https://bbs.archlinux.org/viewtopic.php?id=184331
https://bbs.archlinux.org/viewtopic.php?id=183483
https://bbs.archlinux.org/viewtopic.php?id=183504

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https://ugjka.net

Wilfred

Member

Registered: 2009-05-19

Posts: 5

Re: [SOLVED] Screen corruption on boot following kernel upgrade

Aha, it is indeed that kernel bug. I fixed it by:

1. Adding nomodeset to my grub parameters so I could boot up with a text console.
2. Installed linux-lts
3. Added grub configuration to boot from linux-lts.

Thanks!