Typing problems in tty1

cpcgm · 2010-07-30 20:07:25

My tty1 behaves strange, somehow "clumsy". It misses keystrokes. I type "jkjkjkjkjkjkjk" but get something like "jkjkkjjjj". It happens both in bash and in zsh. tty2, tty3, ... work perfectly. Does anyone know how to fix that?

Inxsible · 2010-07-30 20:10:34

cpcgm wrote:

My tty1 behaves strange, somehow "clumsy". It misses keystrokes. I type "jkjkjkjkjkjkjk" but get something like "jkjkkjjjj". It happens both in bash and in zsh. tty2, tty3, ... work perfectly. Does anyone know how to fix that?

Do you have a lot going on in your bashrc where you check on which tty you are ?

I am just guessing, but if you have a bunch of scripts which does something on every keystroke, that might explain the weird behavior.

cpcgm · 2010-07-30 20:24:55

Nope. A bunch of aliases, exports for colors and that's more or less it. But .bashrc problems would affect all consoles and disappear on starting zsh, wouldn't they?

Stebalien · 2010-07-30 21:19:38

It's slim: http://bugs.archlinux.org/task/18313

cpcgm · 2010-07-31 05:32:31

I don't use any login manager. Slim is not even installed.

bernarcher · 2010-07-31 07:49:46

Try "ps" or "top" to find out if there is any expensive process active on the TTY level.
Does setting up a new test user with basic capabilities only help?

cpcgm · 2010-07-31 08:01:06

What do you mean with "on the TTY level"? How can I find out. In htop the CPUs are around 10 % overall, RAM usage is pretty high (Google Chrome...) but no Swap used. Inside htop the problem persists. I have to press each key a dozen times before it's working.

Loging in as root shows the problem as well. I created a user "test" but unsurprisingly -- the problem is even there with no user logged in -- there's no difference.

bernarcher · 2010-07-31 09:00:27

Call top in that tty1 where you experienced the typing errors.

You do this outside of X, don't you? This is what I meant by "TTY level".
And if so, is X running in parallel? That means did you temporarily escape from the X system by one of Alt+Ctrl+F1..F6 commands?
Or did you simply log into the terminal without starting X?

Last edited by bernarcher (2010-07-31 09:03:27)

cpcgm · 2010-07-31 09:05:08

X is running, I switched with Alt+Ctrl+F1 and ran htop in tty1.

bernarcher · 2010-07-31 09:15:09

Best do a test without X, whether the behavior will be different.

cpcgm · 2010-08-01 07:57:18

After "init 3" everything works.

cpcgm · 2010-08-01 07:58:19

To clarify: After restarting the X server tty1 is back to the old, bad behavior.

bernarcher · 2010-08-01 08:32:13

Obviously there is some process running under X which intervenes with the TTY operation.

Did you try to monitor the behavior with iotop (from community)? Once with X running and once without. Perhaps this will provide some clue.

Otherwise I'm running out of ideas as well.

cpcgm · 2010-08-01 08:37:40

I installed iotop but I'm not sure how to read it. Everything's "0.00 B/s" or "0.00 %" with chrome and jbd2 occasionally showing up.

bernarcher · 2010-08-01 09:04:39

Allright, one final idea in order to find out which processes differ. Try something like this in the TTY:

ps aux | sort -k 11 > somefile1

with X running and then without X running. Then a simple

diff somefile1 somefile2

should provide some insight.

By the way, which WM/DE does run in X?

cpcgm · 2010-08-01 10:15:34

WM: XMonad
DE: GNOME

What's not running without X:
- gnome-do
- starx
- xmonad
- chrome
- dhcpcd
- gnome-keyring-daemon
- gnome-settings
- pulseaudio
- python
- redshift
- gconfd-2
- GlobalMenu
- at-spi-registryd
- bonobo-activation-server
- gam_server
- multiload-applet-2
- gdu-notification-daemon
- clock-applet
- notification-area-applet
- wnck-applet
- gnome-inhibit-applet
- gnome-vfs-daemon
- gvfs-fuse-daemon
- gvfs-gdu-volume-monitor
- gvfsd
- gvfsd-http
- ibus-engine-pinyin
- ibus-gconf
- ibux-x11
- notify-osd
- polkit-gnome-authentication-agent-1
- gconf-helper
- NetworkManager
- console-kit-daemon
- Thunar
- bluetooth-applet
- ck-launch-session
- dbus-launch
- deja-dup-monitor
- easystroke
- gnome-panel
- gnome-power-manager
- gnome-screensaver
- gnome-session
- guake
- ibus-daemon
- Docky
- nm-applet
- Skype
- xcompmgr

Arch Linux

#1 2010-07-30 20:07:25

Typing problems in tty1

#2 2010-07-30 20:10:34

Re: Typing problems in tty1

#3 2010-07-30 20:24:55

Re: Typing problems in tty1

#4 2010-07-30 21:19:38

Re: Typing problems in tty1

#5 2010-07-31 05:32:31

Re: Typing problems in tty1

#6 2010-07-31 07:49:46

Re: Typing problems in tty1

#7 2010-07-31 08:01:06

Re: Typing problems in tty1

#8 2010-07-31 09:00:27

Re: Typing problems in tty1

#9 2010-07-31 09:05:08

Re: Typing problems in tty1

#10 2010-07-31 09:15:09

Re: Typing problems in tty1

#11 2010-08-01 07:57:18

Re: Typing problems in tty1

#12 2010-08-01 07:58:19

Re: Typing problems in tty1

#13 2010-08-01 08:32:13

Re: Typing problems in tty1

#14 2010-08-01 08:37:40

Re: Typing problems in tty1

#15 2010-08-01 09:04:39

Re: Typing problems in tty1

#16 2010-08-01 10:15:34

Re: Typing problems in tty1

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