gistfile1.txt

$ ls -al
total 172
drwxr-xr-x  2 geertjohan geertjohan  4096 Feb 24 16:23 .
drwx------ 52 geertjohan geertjohan 20480 Feb 24 16:25 ..
-rw-r--r--  1 geertjohan geertjohan  4443 Feb 24 11:15 :100.log
-rw-r--r--  1 geertjohan geertjohan  4443 Feb 24 11:14 :100.log.old
srw-------  1 geertjohan geertjohan     0 Feb 24 16:23 5b140a830a50-100
lrwxrwxrwx  1 geertjohan geertjohan    16 Feb 24 16:23 foizetux-100 -> 5b140a830a50-100
-rw-r--r--  1 geertjohan geertjohan    98 Feb 24 11:28 foizetux-100.log
-rwx------  1 geertjohan geertjohan  1009 Feb 24 16:23 run-xpra
-rw-r--r--  1 geertjohan geertjohan 36463 Feb 24 16:23 Xorg.:100.log
-rw-r--r--  1 geertjohan geertjohan 36265 Feb 24 16:05 Xorg.:100.log.old

$ xpra attach :100
Xlib:  extension "RANDR" missing on display ":0.0".
Server's virtual screen is too small -- (server: 5120x1200 vs. client: 5760x1200)
You may see strange behavior.
Please see https://www.xpra.org/trac/ticket/10
Attached (press Control-C to detach)
Connection lost
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/xpra/client.py", line 368, in do_configure_event
    self._client.send(["configure-window", self._id, x, y, w, h])
  File "/usr/lib/python2.7/dist-packages/xpra/client_base.py", line 121, in send
    self._protocol.source.queue_ordinary_packet(packet)
AttributeError: 'NoneType' object has no attribute 'source'
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/xpra/client.py", line 368, in do_configure_event
    self._client.send(["configure-window", self._id, x, y, w, h])
  File "/usr/lib/python2.7/dist-packages/xpra/client_base.py", line 121, in send
    self._protocol.source.queue_ordinary_packet(packet)
AttributeError: 'NoneType' object has no attribute 'source'
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/xpra/client.py", line 368, in do_configure_event
    self._client.send(["configure-window", self._id, x, y, w, h])
  File "/usr/lib/python2.7/dist-packages/xpra/client_base.py", line 121, in send
    self._protocol.source.queue_ordinary_packet(packet)
AttributeError: 'NoneType' object has no attribute 'source'
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/xpra/client.py", line 350, in do_map_event
    self._client.send(["map-window", self._id, x, y, w, h])
  File "/usr/lib/python2.7/dist-packages/xpra/client_base.py", line 121, in send
    self._protocol.source.queue_ordinary_packet(packet)
AttributeError: 'NoneType' object has no attribute 'source'