Haswell composite desktop - laptop+HDMI monitor - how?

[Anton Shterenlikht]

>From tijl at freebsd.org Wed Mar 30 12:37:40 2016
>
>On Wed, 30 Mar 2016 10:52:11 +0100 (BST) Anton Shterenlikht <mexas at bris.ac.uk> wrote:
>> Using xrandr as in the handbook, Sec. 5.4.6:
>>  https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/x-config.html
>> I finally got this configuration:
>> 
>> % xrandr
>> Screen 0: minimum 320 x 200, current 3286 x 1080, maximum 8192 x 8192
>> eDP1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 293mm x 165mm
>>    1366x768      60.00*+  40.00  
>>    1024x768      60.00  
>>    800x600       60.32    56.25  
>>    640x480       59.94  
>> HDMI1 connected 1920x1080+1366+0 (normal left inverted right x axis y axis) 509mm x 286mm
>>    1920x1080     60.00*+  50.00  
>>    1920x1080i    60.00    50.00  
>>    1600x900      59.98  
>>    1280x1024     75.02    60.02  
>>    1152x864      75.00  
>>    1280x720      60.00    50.00  
>>    1440x576i     50.00  
>>    1024x768      75.08    60.00  
>>    1440x480i     59.94  
>>    800x600       75.00    60.32  
>>    720x576       50.00  
>>    720x480       59.94  
>>    640x480       75.00    60.00    59.94  
>>    720x400       70.08  
>> DP1 disconnected (normal left inverted right x axis y axis)
>> HDMI2 disconnected (normal left inverted right x axis y axis)
>> DP2 disconnected (normal left inverted right x axis y axis
>> %
>> 
>> The problem is that only about the leftmost
>> 1/3 to 1/4 of the width of the HDMI is used.
>> No graphical window can be moved further to the right.
>> 
>> Am I missing something?
>> 
>> Again, this worked perfectly for me (using xorg.conf)
>> on a older laptop with nvidia driver and VGA monitor.
>
>Try specifying the virtual screen resolution in xorg.conf:
>
>Section "Screen"
>	[...]
>	DefaultDepth	24
>	[...]
>        SubSection "Display"
>		Depth	24
>		Virtual	3286 1080
>		[...]
>	EndSubSection
>EndSection

That didn't help. Although I'm not sure I follow your
instructions correctly. If I set something like this
in xorg.conf or in
/usr/local/etc/X11/xorg.conf.d/screen-resolution.conf
then it seems to be ignored on X startup.
Perhaps I have to include both what you wrote and
equivalents of:

xrandr --output eDP1 --auto
xrandr --output HDMI1 --auto
xrandr --output HDMI1 --right-of eDP1

also in a config file?

Also, I'm confused by xrandr reporting only screen0.
Previously, with nvidia, I had in xorg.conf screen0
and screen1 positioned to the right of screen0.
Perhaps xrandr uses a different terminology to xorg.conf?

Thank you

Anton