[ltp] Re: how to automate xrandr with Port Replicator and second Monitor (W500)

Thomas Hartwig linux-thinkpad@linux-thinkpad.org
Wed, 02 Feb 2011 15:32:29 +0100

Have seen this in latest Ubuntu as well as I connected a beamer. The
system prompted me for a wished screen layout. So somehow it is working,
but I don't know any details. But I think it is worth investigating.


On 02/01/2011 02:23 AM, Andre Wyrwa wrote:
> Hei,
> i've got a W500, port replicator and a monitor attached to it.
> Now i have a (silly?) habit of docking/undocking the box while it's
> running. No probs, there. But...
> When it's running standalone and i dock it, it fails to automatically
> recognise the second monitor. Is there any way to trigger that? Even via
> a little snipplet? And the same the other way around?
> Likewise, when docked and i switch off the monitor, xrandr remains in
> dual display mode. I'm not sure if monitors generally send a signal back
> through the line when they are entering/leaving standby mode. Is that
> the case? If so, how do i make X react on it?
> (Distro is Gentoo, but i'm fairly comfy with my cross-distro
> interpretation skills. ;-) )
> Thanks,
> Andre.