Garmin/Taking Screenshots
Linux
For taking screenshots of your GPS device you will need QLandkarteGT. Under debian, run as root:
apt-get install qlandkartegt qlandkartegt-garmin
Now run qlandkartegt and go to Setup > General > Device & Xfer and select «Garmin» from the dropdown. Leave the serial port blank, if your GPS is connected via USB, and select your GPS device from the «Type» dropdown.
Now go to File > Device Screenshot and press «Acquire». qlandkartegt might ask you to disable the garmin kernel driver; if so, close qlandkartegt, type as root:
rmmod garmin_gps
and restart qlandkartegt to try again.
Windows
See XImage.
On-Device
Some Garmin models including the nüvi 205, 1390T and GPSMAP 62 have a builtin screen capture function. Once the screen capture is enabled in the display settings (it automatically turns off when the device is power cycled), press the GPSMAP 62's power button or the camera icon on the nüvi's screen to save a screenshot. Files are saved in the internal memory in the Garmin/scrn directory.