Hello,
First of all, I am unable to get the device ID.
hp-info has always shown a red colored warning "no device found".
the only way to get any response from hp-firmware was to use
hp-firmware -d <uri> -i -L debug
this yielded a response in light blue, hp-firmware [7672]:
debug: mode 0
debug: {}
with no response from the printer.
Second: How am I supposed to update the ghostscript extension?
I have ran the tce-audit and tce-update commands with no change.
Opened APPS Check for Updates, nothing found.
Ghostscript looks like its included with hplip.
It can't be deleted by itself and it was removed by deleting hplip and hplip-extensions.
While re-installing hplip, I saw that ghostscript, cups and others dependencies were installed.
I reinstalled hplip-extensions and turned on cups debug.
The same gs: libidn.so.11 error is present with the same filter failed message.
Side note: I have also tested with another distro, Linux Lite.
the p3005 works no matter which one of the four drivers it lists to use.
thx