LinuxQuestions.org
Visit Jeremy's Blog.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Software
User Name
Password
Linux - Software This forum is for Software issues.
Having a problem installing a new program? Want to know which application is best for the job? Post your question in this forum.

Notices



Reply
 
Search this Thread
Old 04-18-2010, 12:10 AM   #1
vsnyder
LQ Newbie
 
Registered: May 2005
Distribution: Red Hat
Posts: 8

Rep: Reputation: 0
Unhappy ALT+CTRL+F1-F6 quit working


I just installed some updates, one of which might have been
kdebase-3.5.4-20.el5.centos.i386.rpm.

Before I installed the updates, switching to a VT console using ALT+CTRL+Fn (n=1..6) worked, but after installing the updates it quit working within a KDE session. It does still work from the login screen (so it's not an X problem, or a /etc/inittab problem).

After logging into a KDE session, I can get to a VT console if I first use ALT+CTRL+F12.

Here's the keyboard section from xorg.conf:

Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection

There is no option DontVTSwitch line.

I have the same problem on another computer. That one is more of a problem because its keyboard doesn't have an F12 key.

What to do?
 
Old 04-19-2010, 11:27 AM   #2
business_kid
Guru
 
Registered: Jan 2006
Location: Ireland
Distribution: Slackware & Android
Posts: 6,616

Rep: Reputation: 585Reputation: 585Reputation: 585Reputation: 585Reputation: 585Reputation: 585
Check the file /etc/inittab for lines like these
# These are the standard console login getties in multiuser mode:
c1:1235:respawn:/sbin/agetty 38400 tty1 linux
c2:1235:respawn:/sbin/agetty 38400 tty2 linux
c3:1235:respawn:/sbin/agetty 38400 tty3 linux
c4:1235:respawn:/sbin/agetty 38400 tty4 linux
c5:1235:respawn:/sbin/agetty 38400 tty5 linux
c6:12345:respawn:/sbin/agetty 38400 tty6 linux

ps -e |grep agetty should show you a process for every terminal that's not logged in
ps -e |grep bash should show you a process for every one that is.

Tell us if those are correct.
 
Old 04-19-2010, 03:20 PM   #3
vsnyder
LQ Newbie
 
Registered: May 2005
Distribution: Red Hat
Posts: 8

Original Poster
Rep: Reputation: 0
Thumbs down ALT+CTRL+F1-F6 quit working

As should have been clear from the original question, ALT+CTRL+F1 switches to a text console, but only before logging in to a KDE session. Once a KDE session is open, ALT+CTRL+F12 followed by ALT+CTRL+F1 works. This is therefore not a problem with /etc/inittab (which has a date of 7 Sep 2007, much older than the onset of the problem), or X (xorg.conf has a date of 14 Dec 2008, also much older than the onset of the problem). The problem is almost surely a KDE problem. I can't find anything in the KDE Control Panel that re-maps ALT_CTRL_Fn (n=1..6).
 
Old 04-19-2010, 03:23 PM   #4
vsnyder
LQ Newbie
 
Registered: May 2005
Distribution: Red Hat
Posts: 8

Original Poster
Rep: Reputation: 0
Arrow ALT+CTRL+F1-F6 quit working (additional info)

By "before logging into a KDE session" I mean in level 5, from the X login screen, not before xdm is launched.
 
Old 04-19-2010, 03:32 PM   #5
vsnyder
LQ Newbie
 
Registered: May 2005
Distribution: Red Hat
Posts: 8

Original Poster
Rep: Reputation: 0
More follow-up: GNOME has the same problem. From the X login screen, ALT+CTRL+F1-F6 switches to a text console. After logging in to either GNOME or KDE, ALT+CTRL+F12 switches to a blank non-X screen (no login prompt), from which ALT+CTRL+Fn (n=1..6) switches to a text console. From a text console, ALT+CTRL+F7 switches back to X as expected. So it's probably not a KDE or GNOME problem. What is it? Definitely not /etc/inittab.
 
Old 04-20-2010, 04:52 AM   #6
business_kid
Guru
 
Registered: Jan 2006
Location: Ireland
Distribution: Slackware & Android
Posts: 6,616

Rep: Reputation: 585Reputation: 585Reputation: 585Reputation: 585Reputation: 585Reputation: 585
Have you tried downgrading the kernel?
 
  


Reply

Tags
console, virtual


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
ctrl-alt-F(1-6) not working in PCLinuxOS) a KDE bassed distro BigBearOmaha Linux - Desktop 1 12-18-2006 04:26 PM
ctrl+alt+[f1 tp f6] consoles nt working??? salman.s Linux - Hardware 4 05-31-2006 05:53 AM
Alt+ctrl+F Keys stopped working Xorg miner49er Linux - General 6 04-08-2006 06:00 AM
Accessing Terminals in MEPIS. (Ctrl + Alt +F? not working) Eerath MEPIS 2 10-27-2005 11:51 AM
dark screen when pressing Ctrl + Alt + Backspace or Ctrl + Alt F1-F6 in Gnome or KDE trinoo Slackware 5 01-28-2005 09:13 AM


All times are GMT -5. The time now is 04:52 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration