linux-kernel - Re: recurring problem, booting to black screen with intel GPU

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Date:	Sun, 26 Dec 2010 08:36:22 +0100
From:	Maciej Rutecki <maciej.rutecki@...il.com>
To:	"Robert P. J. Day" <rpjday@...shcourse.ca>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: recurring problem, booting to black screen with intel GPU

See:
https://bugzilla.kernel.org/show_bug.cgi?id=25242

Regards

On sobota, 25 grudnia 2010 o 23:42:59 Robert P. J. Day wrote:
>   on my ubuntu laptop (gateway NV79), a 2.6.37-rc7+ kernel i just
> built now boots to a black screen.  no text mode, no virtual consoles,
> nothing.
> 
>   this is probably the best explanation:
> 
> http://www.oblurb.com/ubuntu-dell-latitude-e6510-intel-gpu-blank-screen.htm
> l
> 
> annoyingly, i'm currently running a 2.6.37-rc5+ hand-rolled kernel
> that works fine, but this more recent kernel doesn't, and a kernel
> *earlier* also doesn't work, so this issue seems to come and go.
> 
>   here's another extended conversation on the same topic:
> 
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/600453
> 
> here's the relevant output from lspci:
> 
> 00:02.0 VGA compatible controller: Intel Corporation Core Processor
> Integrated Graphics Controller (rev 12) (prog-if 00 [VGA controller])
>         Subsystem: Acer Incorporated [ALI] Device 031c
>         Flags: bus master, fast devsel, latency 0, IRQ 41
>         Memory at d0000000 (64-bit, non-prefetchable) [size=4M]
>         Memory at c0000000 (64-bit, prefetchable) [size=256M]
>         I/O ports at 3050 [size=8]
>         Expansion ROM at <unassigned> [disabled]
>         Capabilities: <access denied>
>         Kernel driver in use: i915
>         Kernel modules: i915
> 
> if i use "nomodeset", i can boot to the command line and no further.
> i'm open to suggestions.
> 
> rday

-- 
Maciej Rutecki
http://www.maciek.unixy.pl
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