LinuxQuestions.org
Welcome to the most active Linux Forum on the web.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - General
User Name
Password
Linux - General This Linux forum is for general Linux questions and discussion.
If it is Linux Related and doesn't seem to fit in any other forum then this is the place.

Notices


Reply
  Search this Thread
Old 02-03-2010, 03:46 PM   #1
Swampy
Member
 
Registered: Jan 2003
Location: Dover, Kent
Distribution: Debian 6.0.1 (Squeeze)
Posts: 133

Rep: Reputation: 15
Home button playing up


Sorry to post in General, but I don't think this is a distro-specific issue nor is it a hardware issue.

System: Debian Etch running on a Sony Vaio K115S ('bout 4-5 years old)
Desktop: Gnome 2.22.3
Usual Multimedia packages installed on top of vanilla Debian.

My keyboard has started exhibiting the following behaviour & for the life of me, I cannot remember doing anything in software to it...

Left Shift+Home to select text does not work. Using xev I've identified that the shift press is detected, but the home press is not.

Left Shift+Left Arrow also does not work. Cursor won't even move.

Alt+Home does not work.

Right Shift+Home DOES work & selects all text to the left, as you'd expect.

Conversely, Left Shift+END works as expected, as does Left Shift+Right

This used to work I'm sure, as I'm finding it REALLY irritating not to be able to select text using the left shift key
I do not have xmodmap configured (no config files), but it is installed on my system.

Has anyone experienced this behaviour in the past? All buttons have been physically tested & all do work, just not in these combinations.

Any advice appreciated!
 
Old 02-03-2010, 04:14 PM   #2
MTK358
LQ 5k Club
 
Registered: Sep 2009
Posts: 6,443
Blog Entries: 3

Rep: Reputation: 721Reputation: 721Reputation: 721Reputation: 721Reputation: 721Reputation: 721Reputation: 721
Maybe there is something wrong with your keyboard? If you have another keyboard, try it.
 
Old 02-03-2010, 04:17 PM   #3
Swampy
Member
 
Registered: Jan 2003
Location: Dover, Kent
Distribution: Debian 6.0.1 (Squeeze)
Posts: 133

Original Poster
Rep: Reputation: 15
I'm afraid it's just my laptop keyboard to hand at the mo.

I'll see if I can borrow a USB keyboard from my school tomorrow to test.

I'll post an answer tomorrow evening.

Thanks for the tip!
 
Old 02-03-2010, 04:57 PM   #4
MTK358
LQ 5k Club
 
Registered: Sep 2009
Posts: 6,443
Blog Entries: 3

Rep: Reputation: 721Reputation: 721Reputation: 721Reputation: 721Reputation: 721Reputation: 721Reputation: 721
The way most keyboards work is that the keys are wired in a grid, and pressing certain combinations can make it so that one key cannot be detected, or even for the computer to detect a key you haven't pressed!
 
Old 02-04-2010, 06:59 PM   #5
Swampy
Member
 
Registered: Jan 2003
Location: Dover, Kent
Distribution: Debian 6.0.1 (Squeeze)
Posts: 133

Original Poster
Rep: Reputation: 15
Well, I plugged in a standard USB Keyboard into the Laptop:
LeftShift+Home worked perfectly.
Still nothing on my keyboard.

Therfore, must be the keyboard at fault. Thanks for the tip there.

I had ruled out a hardware fault because the Home button works perfectly on it's own, just not in a key combination with LeftShift.

Looks like I might have to live with it.
I can use my mouse in any case, I'm just used to the keyboard.

If the keys are wired in a grid, as you say MTK358, I wonder if there's something physical causing this.

I might have a dust-up underneath the keyboard this weekend. It's about time I gave the laptop a clean. It has been 5 years now...

Thanks for all the advice, though.
 
Old 02-04-2010, 08:13 PM   #6
MTK358
LQ 5k Club
 
Registered: Sep 2009
Posts: 6,443
Blog Entries: 3

Rep: Reputation: 721Reputation: 721Reputation: 721Reputation: 721Reputation: 721Reputation: 721Reputation: 721
It's some kind of a special row/column matrix arrangement, I forgot how it is called. I once saw a great explatation of it somewhere, if I could only find it.

Anyway, I finally found it:

http://www.dribin.org/dave/keyboard/...dex.html#INTRO

EDIT: see this too: http://www.sjbaker.org/wiki/index.ph...oards_Are_Evil

Last edited by MTK358; 02-04-2010 at 08:20 PM.
 
  


Reply


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 On
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
MP3 Files pausing while playing over home lan vba_djs Linux - General 1 05-10-2008 11:04 AM
KDE Home Button Problem WindowsDefector Linux - Software 2 07-13-2005 04:25 AM
Changing Konqueror home button Neruocomp Linux - Software 3 04-05-2005 11:43 PM
keyboard keymap is messed up. the down button brings up a window pointing to my home williamp0044 Debian 0 01-23-2005 03:45 PM
Home button starts Browser !! alancook Linux - Newbie 3 08-10-2004 08:11 PM

LinuxQuestions.org > Forums > Linux Forums > Linux - General

All times are GMT -5. The time now is 05:58 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
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration