[ltp] T520 Ubuntu 11.10 x64 - can't connect external monitor

Micha linux-thinkpad@linux-thinkpad.org
Mon, 06 Feb 2012 12:35:31 +0200

On 06/02/2012 04:50, Marius Gedminas wrote:
> On Sun, Feb 05, 2012 at 12:47:42PM -0500, Fen Labalme wrote:
>> 2012/2/4 Marius Gedminas <marius@gedmin.as>
>>>> Will the VGA be able to drive a 1920x1200 display?



>> (BTW: I had to remove the xorg.conf during the switch from Discrete to
>> Integrated graphics, and even after fooling with the setup a while, no new
>> xorg.conf file was created.)
> Right, that's normal.  The open world of Linux graphics has progressed
> to the point where almost everything is autodetectable, hotpluggable,
> and configurable at runtime, so Xorg.conf is rarely needed.
> NVidia's proprietary drivers are still stuck in the past in that sense,
> (the though goes, I believe, because why waste money on engineering
> when things already work sufficiently well for them).  They do get
> better 3D performance with fewer bugs, at the cost of poorer integration
> with the rest of the system.

The problem is actually with X and not NVIDIA AFAIK, or at least with
the way NVIDIA integrates their drivers. Not sure why, but X ignores the
fact that it has NVIDIA drivers and thus they need to be forced.

>> System specs:
>> T520 with i7-2760QM running Ubuntu 11.10
>>    Intel HD 3000 Integrated GPU
>>    Nvidia NVS 4200M w/ Optimus and 1GB DDR3 Memory
>> Thinkpad monitor has 1600x1200 display (HD+)
>> Samsung monitor has 1920x1200 display
> Marius Gedminas