Julian H. Stacey jhs at
Tue Nov 13 04:37:07 UTC 2012

> From:		Matthias Apitz <guru at> 
> Reply-to:	Matthias Apitz <guru at> 
> Date:		Sat, 10 Nov 2012 13:26:00 +0100 
> Message-id:	<20121110122600.GA3426 at tinyCurrent> 

Matthias Apitz wrote:
> El día Tuesday, November 06, 2012 a las 02:54:20PM +0100, Julian H. Stacey escribió:
> > I connect with SVGA, 
> > 	TV has HDMI, SVGA, S-VHS, Laptop has SVGA, SVHS, Neither have DVI,
> > 	I recall S-VHS gave low res, & only monochrome=B/W.
> > 
> > After you solve your connection, To share displays:
> > 	cd /usr/ports/x11/xrandr; make install ; man xrandr
> > You will notice one can move & share xterms etc between screeen,
> > but [some] video players seem sticky & wont move so easily (video
> > frame buffers I recall?, I havent had time to look into it much)
> > 
> > Cheers,
> > Julian
> Hi Julian,
> I have installed xrandr 1.3.x but do not see how to use this with the
> external VGA TV; my laptop uses 1024x600 and the TV has 1920x1080
> resolution; when I connect the TV before starting X11/KDE both screens
> show the same picture with 800x600 resolution; can you please give an
> example how to use 1920x1080 on the TV? Thanks
> 	matthias

Hi Matthias,
sorry I've been swamped in mail (a broken procmail + a spam flood)
so late reply, aniothe day gone & its gone 5 AM, so please excuse
as I've not used xrandr in a few months & had more work to do so
heres my notes file (which wasn't written to be published but well,
if anything useful, glean (grab) what you can ...

 To play a film from host=lapo Novatech to new 40" TV

 Login av av
 xhost +
 cd /av/video/2rip
 setenv DISPLAY :0
  Screen 0: minimum 320 x 200, current 1024 x 768, maximum 1024 x 1024
  VGA-0 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
     1024x768       60.0*
     800x600        60.3
     640x480        59.9
  LVDS connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
     1024x768       60.0*+   60.0
     800x600        60.3     59.9
     640x480        59.9     59.4
  S-video disconnected (normal left inverted right x axis y axis)

 xrandr --output VGA-0 --primary	# doesnt divert a running mplayer
					# but might divert a new started
					# one, not tried yet

 xrandr --output LVDS  --off 		# to force mplayer output on TV

 xrandr --output VGA-0 --left-of LVDS	# Yet to try

 gmplayer -noborder film-0:23:51-720.avi

 Yet to Do somehow
	remove window border on gmplayer	# -noborder does not work
	reduce fvwm panel
 xrandr --auto # Reset:
 xrandr --addmode S-video 800x600	# Initialise for S-VHS output to TV.
 xrandr --output S-video --mode 800x600 # Initialise for S-VHS output to TV.
 xrandr --output LVDS --off		# Turn off laptop internal.
 xrandr --output S-video --left-of LVDS # Dual headed. Then restart fvwm.
		I need to rethink FVWM placement as currently,
		Left placement results in:
			Xterm etc auto placements start on left = TV
			Lower right fvwm panel manager does not clutter TV.
			Lower left FVWM Bomb clock & frame lock not visible.
 xrandr --output LVDS --primary	# Not tried.
			Option "RROutputOrder" "DVI-I_1/digital VGA_1"
	Another incompatibility due to S-Video's not being part of
	the original SCART standard is when connecting a SCART
	output device such as a cable TV box to a TV with a mini-DIN
	S-Video input. In many cases, if this connection is made,
	the result will be a predominantly black-and-white picture,
	with most of the color (chrominance signal) washed out. An
	example of this is when connecting a SCART output of a
	FOXTEL Digital Box (Australia) to a mini-DIN S-Video input
	of a TV. An impedance mismatch between the SCART and mini-DIN
	interfaces causes the signal levels to be reduced to the
	TV, resulting in the poor picture. This problem can be
	overcome by terminating the chrominance line of the SCART
	plug with a 75-ohm resistor, correcting the mismatch. Many
	high-end sets do support this connection, however (without
	the termination), due to their inputs' having a larger
	dynamic range.
 My Novatech -8355 laptop drives my TV LCD Thomson 15LCDM03B
	from the mini DIN on laptop,
		to mini DIN on TV, in colour, (AV2 on TV controller).
		to scart on TV in monochrome (?AV-what? ) on TV controller)
		I have not yet investigated voltages & impedances
		to consider if a 75 ohm will help.

Julian Stacey, BSD Unix Linux C Sys Eng Consultant, Munich
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