Keyboard output on text console is "awesome"...

hishnik

hishnik

I've found this post describing my problem, but there is no solution.
I can't switch to text console with Alt+ctrl+Fx from Xorg session.
If I kill my DM with `service xdm stop` then I can see text login prompt, but all key presses leads to abnormal symbols output (cat walking on the keyboard)
Sometimes I can see this in my /var/log/messages:
Code: 
Nov  6 21:57:29 myhost login[1384]: in prompt_tty(): caught signal 3
Nov  6 21:57:29 myhost login[1384]: pam_authenticate(): Conversation failure
Nov  6 21:58:11 myhost login[1384]: 2 LOGIN FAILURES ON ttyv1
Today I've updated my FreeBSD to releng/13.2-n254638-d20ece445acf with no success in problem resolution.

What can I do more?
 

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I've never felt so close to another soul, and yet so helplessly alone, as when I search an error, and there's one result, a thread by someone with the same problem, and no answer. Who are you, hishnik? What did you see?!
 
JT42 said:
I've never felt so close to another soul, and yet so helplessly alone, as when I search an error, and there's one result, a thread by someone with the same problem, and no answer. Who are you, hishnik? What did you see?!
Click to expand...
Problem just disappeared.
 
JT42 said:
I've never felt so close to another soul, and yet so helplessly alone, as when I search an error, and there's one result, a thread by someone with the same problem, and no answer. Who are you, hishnik? What did you see?!
Click to expand...
I've just made serial-line console for different boot types CSM/UEFI. Did you do something similar?
 
Are you using a serial console?
If yes, I've seen a similar thing when used a small ARM computer and an LCD with PWM-controlled backlight. The PWM was producing essential EMI affecting the serial connection.
 
aragats said:
Are you using a serial console?
If yes, I've seen a similar thing when used a small ARM computer and an LCD with PWM-controlled backlight. The PWM was producing essential EMI affecting the serial connection.
Click to expand...
I always configure FreeBSD to use serial line as a secondary terminal. There could be problems with default video output, serial is my main backup system-access channel on all FreeBSD setups. But I think EMI affecting serial line is out of topic of this thread. What's wrong with keycodes? - the main question.
 
I haven't create a serial console. I've just seen the random characters on text consoles. I haven't done any changes to them; it's just whatever gets configured with a stock installation.
 
I've seen that kind of problem crop up on spinning rust (platter-based HDDs), esp. stuff that was heavily used before. The OS normally runs fsck on startup, which should fix it, but older hardware that was heavily used tends to have a higher probability of random errors like that even happening.
 
This system has a new Crucial M.2 SSD for the root file system and two new Crucial SATA SSDs for /home.

Another possible clue: The random characters seem to only appear on ttyv1, not ttyv0 or any of ttyv2 through ttyv7.
 
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