ThinkPad L420 on startup Blackscreen after kernel update (3.2.1-1)

pfeilmann · 2012-01-21 11:25:24

Hey

If i start my ThinkPad L420 i see the BootMenu and a few lines from the kernel boot and then I got a black screen. If i connect a VGA monitor on the leptop i can boot fine.

Additional information:
Arch
Kernel: 3.2.1-1
KDE
Thinkpad L420
ProcessorCore: i3 i3-2310M / 2.1 GHz
Chipset: Mobile Intel HM65 Express

Alex

PS: sorry for my bad english ^^

Gusar · 2012-01-21 12:14:28

I could swear there was already a thread about this problem. It's a bug in the kernel. There's a patch available, but I don't currently have a link to it.

Edit: Indeed there already is a thread: https://bbs.archlinux.org/viewtopic.php?id=133905. And the patch is here: http://thread.gmane.org/gmane.comp.free … focus=7979

Last edited by Gusar (2012-01-21 12:32:07)

pfeilmann · 2012-01-21 12:56:04

I´m must compile a new Kernel with the patched "intel_display.c" correct ?

Gusar · 2012-01-21 13:08:33

pfeilmann wrote:

I´m must compile a new Kernel with the patched "intel_display.c" correct ?

Yes.

pfeilmann · 2012-01-21 13:54:30

Can you send me a direct download link intel_display.c i compile a new kernel an it faild. -.-

Gusar · 2012-01-21 14:57:40

You'll have to provide a bit more info. I compiled a 3.3-rc1 kernel, the patch applied and the kernel compiled without errors. I assume it works with the 3.2.1 kernel too.

pfeilmann · 2012-01-21 15:29:11

Ah ok in the 3.3rc1 Kernel is the patch includet or ?

Alex

Last edited by pfeilmann (2012-01-21 15:29:52)

Gusar · 2012-01-21 15:32:02

No, the patch isn't included anywhere yet. I just provided an example that the patch works. So if it doesn't for you, you need to provide information regarding what exactly went wrong.

pfeilmann · 2012-01-21 16:06:54

Can you upload your intel_display.c ?

I'm too stupid for edit. ^^

Gusar · 2012-01-21 16:23:25

This is how patches are applied:

patch -p1 < /path/to/patch/file.patch

But here you go, the full file, already patched: http://pastebin.com/UcuzYZgv

Arch Linux

#1 2012-01-21 11:25:24

ThinkPad L420 on startup Blackscreen after kernel update (3.2.1-1)

#2 2012-01-21 12:14:28

Re: ThinkPad L420 on startup Blackscreen after kernel update (3.2.1-1)

#3 2012-01-21 12:56:04

Re: ThinkPad L420 on startup Blackscreen after kernel update (3.2.1-1)

#4 2012-01-21 13:08:33

Re: ThinkPad L420 on startup Blackscreen after kernel update (3.2.1-1)

#5 2012-01-21 13:54:30

Re: ThinkPad L420 on startup Blackscreen after kernel update (3.2.1-1)

#6 2012-01-21 14:57:40

Re: ThinkPad L420 on startup Blackscreen after kernel update (3.2.1-1)

#7 2012-01-21 15:29:11

Re: ThinkPad L420 on startup Blackscreen after kernel update (3.2.1-1)

#8 2012-01-21 15:32:02

Re: ThinkPad L420 on startup Blackscreen after kernel update (3.2.1-1)

#9 2012-01-21 16:06:54

Re: ThinkPad L420 on startup Blackscreen after kernel update (3.2.1-1)

#10 2012-01-21 16:23:25

Re: ThinkPad L420 on startup Blackscreen after kernel update (3.2.1-1)

Board footer