lucid and monitors

[Jacob Schmude]

Mike
It goes crazy with both. OS X will boot without a monitor, but it runs 
slow and anything that tries to initialize the video card won't work and 
will crash. Ubuntu, naturally, will simply not start X at all.
This isn't specific to Ubuntu or even Linux, any system such as FreeBSD, 
Opensolaris, etc that is based on X11 is going to do this.
What graphics hardware do you have? If I know that I can find what 
driver it's using, and maybe that driver specifically has an option to 
ignore that error.
Another workaround is to get a composite video connector and attach that 
to where your monitor would normally connect. These adapters have enough 
basic circuitry in them that the video card believes them to be monitors 
and will not generate the error in the first place. Depending on your 
connector type, you'll need either a VGA to composite or a DVI to 
composite. Apple sells one for DVI (for the Mac Mini, but it will work 
on any DVI connector) but not sure who sells a VGA to composite adapter 
these days.


On 02/02/2010 06:33 PM, Mike Coulombe wrote:
> Does the mac mini go crazy with their software or ubuntu. I have been thinking about getting one of those.
> Mike.
> X-Antivirus: avast! (VPS 100202-1, 02/02/2010), Outbound message
> X-Antivirus-Status: Clean
>
>
> ----- (Original Message) -----
> From: "Jacob Schmude"<j.schmude at gmail.com>
> Date: Tuesday, February 2,  at 6:27 PM
> To: ubuntu-accessibility at lists.ubuntu.com
> Subject: Re: lucid and monitors
>
>
> Mike, do you know what video driver your system is trying to use? I've
> found that some video drivers with certain video cards (usually
> integraded GPUs) won't allow you to start X if a monitor isn't
> connected. On a slightly related note, something similar happens if you
> attempt to use a Macintosh Mini without a monitor connected, the system
> goes crazy. I believe the video card itself sends an error if a monitor
> isn't connected, essentially they have an open circuit that is completed
> when a monitor is plugged in. I've seen this on Intel GPUs for the most
> part, but it's probably not limited specifically to them.
>
> On 02/02/2010 06:00 PM, Mike Coulombe wrote:
>    
>> Hi, I am still having a problem with lucid not getting to the login screen for gnome if I don't have a monitor connected. It does let me login to the consul, but I don't get the login sound for gnome. Any idea what could be causing this. My monitor doesn't have to be on, but it does have to be connected.
>> Mike.
>>
>>
>>      
>
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