[Mahdi2016]

Hi Michal,

I have tested as native desktop and with ssh.

Here is the output from 'example' command of the terminal window is at follows:

sudo /bin/example /home/pi/EDIDv1_1440x900
[libevdi] ioctl: drop_master error=-1
Attempting to use device /dev/dri/card1...
[libevdi] ioctl: drop_master error=-1
Press Enter or Ctrl+C to quit...

In the same time the other window is at follows:

pi@raspberrypi:~ $ xrandr
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 2048 x 2048
HDMI-0 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 359mm x 287mm
   1280x1024     60.02*+
   1280x960      60.00
   1024x768      60.00
   800x600       60.32
   640x480       60.00
   720x400       70.08

pi@raspberrypi:~ $ xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x43 cap: 0x2, Sink Output crtcs: 3 outputs: 1 associated providers: 0 name:modesetting
Provider 1: id: 0x270 cap: 0x2, Sink Output crtcs: 1 outputs: 1 associated providers: 0 name:modesetting

pi@raspberrypi:~ $ xrandr --setprovideroutputsource 1 0
X Error of failed request:  BadValue (integer parameter out of range for operation)
  Major opcode of failed request:  140 (RANDR)
  Minor opcode of failed request:  35 ()
  Value in failed request:  0x43
  Serial number of failed request:  16
  Current serial number in output stream:  17

 pi@raspberrypi:~ $ xrandr --auto
(without output)

And here is the output from 'monitorsim' command of the terminal window is at follows:

pi@raspberrypi:~ $ sudo /bin/monitorsim /home/pi/EDIDv1_1440x900
[libevdi] ioctl: drop_master error=-1
[libevdi] ioctl: drop_master error=-1
[libevdi] ioctl: drop_master error=-1
No protocol specified
QXcbConnection: Could not connect to display :0

I hope this information will help you.. i havent any ideas anymore.

Best regards
Michael