On 03/04/2014 01:50 PM, Carsten Haitzler (The Rasterman) wrote:
> On Tue, 04 Mar 2014 05:56:19 -0800 David Moylan <[email protected]> 
> said:
>
>> On 03/03/2014 09:15 PM, Carsten Haitzler (The Rasterman) wrote:
>>> On Mon, 03 Mar 2014 19:12:42 -0800 David Moylan <[email protected]>
>>> said:
>>>
>>>> On 03/03/2014 05:38 PM, Carsten Haitzler (The Rasterman) wrote:
>>>>> On Mon, 03 Mar 2014 16:26:10 -0800 David Moylan <[email protected]>
>>>>> said:
>>>>>
>>>>>> On my laptop I plugged in an external monitor.  Everything worked fine.
>>>>>> However, when I disconnected the external monitor it didn't revert to a
>>>>>> single monitor state.  The windows that were on the external monitor are
>>>>>> still offscreen and if I scroll off the screen in that direction the
>>>>>> mouse disappears as if it's on the phantom screen.  Only one monitor is
>>>>>> shown under screen settings.  Is there a way to manually go back to
>>>>>> single screen mode?
>>>>> screen setup dialog.
>>>> How so?  Screen Setup dialog only shows one monitor (which is correct)
>>>> but doesn't give me any options to rectify the situation.
>>> tried dragging it around? if a mini monitor icon is inside of it - click it
>>> (this indicates cloning). this dialog should be showing the current screen
>>> setup/state and let you modify it.
>> Yeah, I've tried changing the resolution by dragging the corner of the
>> single monitor shown.  That does change the resolution, but doesn't do
>> anything to affect the phantom monitor.  No other icon is shown inside
>> the single monitor. xrandr output shows only the single monitor
>> connected.  Other options are all listed as disconnected. Reconnecting
>> the external monitor is fine as well and the existing windows are all
>> still there.
> hmm ok. then we don't have an e error here...
>
> either
>
>    1. xserver is broken - randr just has no idea whats going on, and e just 
> knows
> what randr tells it, so not much we can do...
>
> OR
>
>    2. you aren't using randr... you're using old-fashioned multihead setup and
> you have another SCREEN there. xdpyinfo will list all screens - normally you
> have only screen #0, but if you have multihead you'll have screen #1 (or 
> more).
> there is no way to dynamically configure this via x, so you must have
> configured this via xorg.conf or some custom driver-specific tool, but if you
> have multihead... it's in your ballcourt as there is no way we can modify it,
> configure it or otherwise de-configure it for you.
>
I believe xrandr knows what's happening.  When external monitor is 
connected, it shows 2 monitors.  When disconnected it only shows the 
primary monitor connected.  So that's all correct.  xdpyinfo shows only 
one monitor whether the external is connected or not.  So, I don't think 
I'm using that method.  If e is using xrandr than it should have the 
correct info on the monitor config.  I assume it is getting correct info 
because the Screen Setup panel shows the correct layout of monitors 
whether the external is connected or disconnected.  However, the 
configuration of the desktops when switching from 2 monitors to 1 does 
not update.  It updated correctly when going from 1 to 2, but now it's 
stuck in that state.

-- 
David Moylan
Dax Unlimited
213.399.2979


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