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ezzetabi

Member

Registered: 2006-08-27

Posts: 947

rotate the screen output...

I have a notebook and I work behind a desk... often I have to show the screen contents to people in front of the desk. Since they usually stand I just push the monitor almost horizontally.
Of course they see the screen output upside down.

Can I easily reverse the screen output?
I tried

xrandr --output 0 --rotate inverted

but it seems a noop...

ideas?

Last edited by ezzetabi (2008-10-16 08:01:58)

wuischke

Member

From: Suisse Romande

Registered: 2007-01-06

Posts: 630

Re: rotate the screen output...

Hello,

please replace 0 by the name of the output (for instance LVDS on a notebook screen) or tell us about the error output using your command.

I just tried it with $ xrandr --output LVDS --rotate inverted and it worked fine.

kind regards

ezzetabi

Member

Registered: 2006-08-27

Posts: 947

Re: rotate the screen output...

How can I know the 'name of the output'?
I tried
$ xrandr --output LVDS --rotate inverted
but once again it is a noop, it also returns 0.

Trying the old syntax:

$ xrandr -o inverted
X Error of failed request:  BadMatch (invalid parameter attributes)
  Major opcode of failed request:  158 (RANDR)
  Minor opcode of failed request:  2 (RRSetScreenConfig)
  Serial number of failed request:  12
  Current serial number in output stream:  12

wuischke

Member

From: Suisse Romande

Registered: 2007-01-06

Posts: 630

Re: rotate the screen output...

Please execute just "xrandr".

$ xrandr
Screen 0: minimum 320 x 200, current 1280 x 800, maximum 1680 x 1050
VGA disconnected (normal left inverted right x axis y axis)
LVDS connected 1280x800+0+0 (normal left inverted right x axis y axis) 261mm x 163mm
   1280x800       59.9*+   60.0 
   1280x768       60.0 
   1024x768       60.0 
   800x600        60.3 
   640x480        59.9 
TMDS-1 disconnected (normal left inverted right x axis y axis)
TV disconnected (normal left inverted right x axis y axis)

All available outputs will be displayed including connection status and available resolutions. (I highlighted my outputs in above quote)

ezzetabi

Member

Registered: 2006-08-27

Posts: 947

Re: rotate the screen output...

$ xrandr 
Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 1728 x 1050
default connected 1680x1050+0+0 0mm x 0mm
   1680x1050      60.0* 
   1440x900       60.0  
   1400x1050      60.0  
   1280x1024      60.0  
............
$ xrandr --output default --rotation inverted
xrandr: output default cannot use rotation "inverted" reflection "none"

I guess there is nothing to do...

oew

Member

From: Norway

Registered: 2006-11-08

Posts: 105

Re: rotate the screen output...

For me it works with just:

xrandr -o inverted

and to switch back:

xrandr -o normal

___
oew

---

there's no place like ~/

azleifel

Member

Registered: 2007-10-28

Posts: 486

Re: rotate the screen output...

I've got a nvidia card.  To get

xrandr -o inverted

to work with the nvidia driver I just needed to add

Option    "RandRRotation" "True"

to the Device section in xorg.conf.