I have a convertible laptop/tablet with graphics tablet screen, which often logs out of the current X session whilst using GIMP 2.6. I am dropped back to the login prompt without a system wide restart. All unsaved work is lost, making this a real problem for me.
This only seems to happen whilst reaching over the keyboard to draw on the screen. I have disabled the CTRLAltBackspace shortcut so I don't believe leaning on the keyboard is causing the problem.
There is no output to dmesg or xsession-errors when the restart occurs. Any advice on how to track down or deal with this problem would be appreciated.
OS: Linux mint 13, 64 bit (up to date)
Hardware: unmodified HP Compaq 2710p, (laptop/wacom graphics tablet), no external devices connected.
I have sought an answer at the XFCE forums but with no response after two weeks.