Problem with 7i96 board connection “No 7i96 board found

Please have a look at configurations files attached.
I captured video on my phone where I try again test linuxcnc:
Video of testing linuxcnc

Video and couple photos are in GoogleDrive folder.

Do the Axis + and - jog buttons work?
(maybe the a key character issue of some kind)

It seems to me that my computer is too old and outdated (system is new, but computer has more than 15 years old).
All Keyboard doesn’t respond. Only mouse can just move on display. And on mesa card light all LED (cr1, cr2,cr3,cr4)

All green user LEDS lit is normal on the 7I96 when LinuxCNC is running properly.

Can you activate the jog+ and jog- buttons with the mouse?

Sounds like just a KB issue (maybe a country localization issue?)

Thanks for you message) Mouse can not do anything when it’s not responding. Just move arrow.
What do you mean country localization issue? Does linuxcnc have any limits?

I see that many people use not debian 10 for linuxcnc. Should I try reinstall system to Ubuntu or Linux Mint?

I suggested the localization issue and it might have explained the keyboard not working
if the mouse does not work, that's another issue, so it not localization.

If you start LinuxCNC from the command line, are there any error messages?

Thanks for your message) Situation was changed and some problem was solved)
I took another computer for Linuxcnc, (now I use core i5 instead 15years old computer).
So all previous problem disapeared. I have
- install Debian 10.9.0 Buster
- install rt kernel
-install linuxcnc
- install mesaflash
- connect my mesa 7i96 and make config at pncconf (I flash mesa card with 7i96dpl.bit, bu did it on old computer. I did not flash mesa card again on new computer. Hope it is OKAY)

I have table scheme XXYZ (i need two motors on x-axis because table quite wide 1750 mm).
I faced with two PROBLEM:
1) when I start to config pncconf I see message:
You have no hostmot2 firmware downloaded in folder: /lib/firmware/hm2/
PNCconf will use internal firmware data

How can I add that files and where I can find it?

2) I can not set X-axis motor working properly - they have to spin opposite direction but they don't(

I set X2 motor as tandem and mark checkbox "Inv", but have no result.

1. You can ignore the pncconf warning
2. Did you invert the direction (not the step) pin?

You should have a statement in the hal file like:

setp [HMOT](CARD0).stepgen.0X.direction.invert_output true

In the tandem joint section of your hal file

I can not find such code in hal file. Please have a look by yourself

Sorry, I found:
setp hm2_7i96.0.stepgen.02.step.invert_output true

but it is not direction(