GPS Manager User Manual -- Known problems

|  |  | Known problems

## Known problems

The list of known problems (on 20 November 2001) is:

1. GPSMan relies on the use of a serial port to communicate with the GPS receiver. Some Tcl/Tk installations (e.g., in SuSe and Red Hat Linux), operating system drivers and even hardware (in some laptops) were reported not to work correctly with the serial port. In what concerns Tcl/Tk, upgrading to a newer version solved the problem in most cases. To help debugging input from a serial port a Tcl/Tk program is available from the WWW page. It must be edited before use to set the correct path to the serial port.
2. GPSMan releases 5.3 and later cannot be run under Tcl/Tk 8.0 due to bugs in the latter. The recommended version of Tcl/Tk is 8.3 or later.
3. in older Tcl/Tk versions, neither map background images nor waypoint symbols are saved to Postscript along the other map information. Upgrading to a more recent Tcl/Tk is highly recommended.
4. due to limitations imposed by Tcl/Tk, that does not implement communication with serial ports on Macintosh platforms, GPSMan will not be able to dialog with the GPS receiver on these systems.

|  |  | Known problems