home.md

@@ -1301,6 +1301,24 @@ nvidia-smi
 * Problem: sometimes, if you start the program, the program seems to be very slow and is running at a frame rate of 1 frame per second
 * Solution: stop the program and start it again. The second time it should run at normal/smooth speed
 
+##### Remember:
+* kill you own vnc session with "vncserver -l kill:[port number] when you are done with your application
+* do not close the **bash shell** which you got with the "srun" command before you are done with your application
+* if you close your bash shell (srun), the vnc session will be terminated.
+You will see something like if you run the "vncserver -list" command:
+```
+vncserver -list
+
+TurboVNC sessions:
+
+X DISPLAY #	PROCESS ID
+
+Warning: res-hpc-gpu01.researchlumc.nl:1 is taken because of /tmp/.X1-lock
+Remove this file if there is no X server res-hpc-gpu01.researchlumc.nl:1
+:1		31636
+```
+In this case you have to manually remove the lock file.
+
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