[Intel-gfx] Issues with 2nd display being treated as primary (when not plugged in)

[Bryan Hoyt | Brush Technology]

Some more useful info here. I've tried this card in the very latest
pre-release of Ubuntu 11.04, and the problem is solved. 2 questions: 1) How
can I figure out what caused it, and what was fixed? 2) How can I get the
goodness from 11.04 into my current installation of 10.04? Upgrading isn't
really an option for me at this stage.

Can anyone help out? Much appreciated!

 - Bryan

On Thu, Jan 27, 2011 at 21:42, Bryan Hoyt | Brush Technology <
bryan at brush.co.nz> wrote:

> Also, here's my dmesg from booting the 2.6.38 kernel, in case it's useful
> to help someone find out more about the issue:
> http://pastebin.com/qgqd6iT4
>
> <http://pastebin.com/qgqd6iT4> - Bryan
>
>
> On Thu, Jan 27, 2011 at 21:34, Bryan Hoyt | Brush Technology <
> bryan at brush.co.nz> wrote:
>
>> Hello,
>>
>> I have an all-in-one tablet-like PC with a builtin monitor (LVDS1) and 2nd
>> hotpluggable monitor (VGA1), using the intel graphics driver.
>>
>> My problem in a few words: if I don't have a 2nd screen plugged in at
>> boot, I can't see a thing once X loads. If I have a 2nd screen plugged in at
>> boot, everything works more-or-less ok.
>>
>> Details of unit:
>>
>>    - Xorg: 1.7.6
>>    - Linux: 2.6.32-27-generic (and I've also tried with the very latest
>>    2.6.38 Ubuntu Natty Narwhal kernel, same problem)
>>    - Ubuntu: 10.04 Lucid Lynx
>>    - Graphics card: Intel Mobile 945GM/GMS/GME, 943/940GML Express
>>    Integrated Graphics Controller (rev 03)
>>    - Unit: Axiomtek     GOT-5100T-830    All-in-One    10.4” SVGA TFT
>>    Fanless Touch Panel Computer with Intel® AtomTM N270 Processor Onboard
>>
>>
>> More detail: If I have VGA1 unplugged at boot, X detects it (VGA1) as
>> primary for some reason, and shows a blank screen on LVDS1 (but during BIOS
>> load, grub, and plymouth splash, the picture shows on LVDS1 as expected. I'd
>> expect X to do the same, but it doesn't). When I plug in VGA1, the picture
>> shows up fine on there, but no pic on LVDS1 until I load up Monitor
>> Preferences or use xrandr. If VGA1 is plugged in during boot, then both
>> screens operate as expected.
>>
>> I want it to boot smoothly, with no flicker, in both situations (2nd
>> screen plugged & unplugged), so using xrandr dynamically after X loads isn't
>> really an option.
>>
>>    - Xorg.conf: none (I've tried various xorg.conf settings, but none
>>    help, so it works just as badly with no config file)
>>    - lspci: http://pastebin.com/n6bPhupW
>>    - xrandr --verbose: http://pastebin.com/0gmRWARM
>>    - Xorg.log withOUT 2nd monitor attached: http://pastebin.com/J9adGpjb<http://pastebin.com/pyx5y2g0>
>>    - Xorg.log WITH 2nd monitor attached: http://pastebin.com/wP1VEvHJ
>>
>> <http://pastebin.com/n6bPhupW>
>>  <http://pastebin.com/pyx5y2g0>
>> Can anyone help me delve further into the problem? Perhaps even help fix
>> it? ;-)
>>
>> I'd be very keen to chat with someone in person (Skype or something), if
>> that's appropriate -- but I'm more than happy to discuss via this list if
>> that's better.
>>
>> Kind regards,
>> Bryan
>>
>> --
>> PS. Check out the Brush newsletter: *Subscribe or read our previous
>> newsletters* <http://brush.co.nz/newsletters>
>>
>> Bryan Hoyt, *Web Development Manager*  --  Brush Technology
>> *Ph:* +64 3 741 1204     *Mobile:* +64 21 238 7955
>> *Web:* brush.co.nz
>>
>
>
>
> --
> PS. Check out the Brush newsletter: *Subscribe or read our previous
> newsletters* <http://brush.co.nz/newsletters>
>
> Bryan Hoyt, *Web Development Manager*  --  Brush Technology
> *Ph:* +64 3 741 1204     *Mobile:* +64 21 238 7955
> *Web:* brush.co.nz
>



-- 
PS. Check out the Brush newsletter: *Subscribe or read our previous
newsletters* <http://brush.co.nz/newsletters>

Bryan Hoyt, *Web Development Manager*  --  Brush Technology
*Ph:* +64 3 741 1204     *Mobile:* +64 21 238 7955
*Web:* brush.co.nz
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