PathPilot Screen freezes after idle for an hour.

The CPU is INTEL. Teh video side is also INTEL HD

The driver file is a DEB file

Right, but what is the complete Intel CPU model?
( there are 9 generations of I3s dating back to 2010 )

Vmax549 wrote: The driver file is a DEB file

You can just double click on that and it should show the screen for gdebi package installer, if it does not, right click>open with>choose gdebi>ok.
If even that does not work, open a terminal and paste this:
sudo apt install gdebi
y

For the cpu type, open a terminal and type
lscpu
notice the number after I3

operator@tormachpcnc:~$ lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Thread(s) per core: 2
Core(s) per socket: 2
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 158
Stepping: 10
CPU MHz: 800.115
BogoMIPS: 7393.31
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 256K
L3 cache: 4096K
NUMA node0 CPU(s): 0-3
operator@tormachpcnc:~$

The label on teh box says Intel Pentium Gold G...54W/58W BX80684G5400

Maybe it is NOT i3 ??

( TP

That looks like i3- 7100 cpu.
There are two things wrong with your system, both wrong BIOS settings:
You have hyperthreading enabled, must be dissabled and your processor is set to run at 800 MHz ???
It should run much faster.
I do not know what Bios does your motherboard use, but do a search for it and see how to change that.