[Intel-gfx] Can't start X headless

[Adam Jackson]

On Mon, 2012-07-16 at 09:23 +0100, Chris Wilson wrote:
> On Mon, 16 Jul 2012 16:18:19 +0800, Chris <tlvenn at gmail.com> wrote:
> > Hi All,
> > 
> > I am trying desperately to find a working X config that would allow me
> > to leverage the intel driver without a monitor being plugged in
> > (Headless). We need to do some opengl rendering which are later saved
> > on the disk as images and the jobs are executed on servers which by
> > nature are headless.
> > 
> > For reference, the server has an intel HD 2000 IGPU and I am using
> > Ubuntu 12.04 LTS with the latest intel driver (2.19.0).
> > I have tried everything I could think of without success.
> > Always end up with:
> > 
> > [3661641.967] (EE) No devices detected.
> > [3661641.967] Fatal server error: no screens found
> 
> This implies that it wasn't able to detect the Intel GPU at all. Can you
> please attach your dmesg and lspci? You may need to tweak your BIOS in
> case it is hiding the iGPU.

Well, no, the intel driver didn't bind because the OP booted into a
configuration that can't possibly work:

> [3661641.851] Kernel command line: BOOT_IMAGE=/boot/bzImage-3.2.13-xxxx-grs-ipv6-64 root=/dev/md1 ro text nomodeset

'nomodeset' -> no kms -> no intel driver.

Once you've fixed that, if things still don't work, refer to the static
multihead configuration guide here:

http://intellinuxgraphics.org/dualhead.html

and just pick an output to enable; or, force it one on the kernel
command line by saying "video=VGA-1:e" to force it to be considered
"enabled".

- ajax
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