Caps/CTRL switching not working

[gspalding]

I have switched to NX 5 at work.

The system I’m connecting to is a RHEL VM running KDE 3.5.

I followed the instructions to make a new keyboard map (from stackoverflow last year)

Run setxkbmap -print | xkbcomp -xkb -o original.xkb -.

Then copy original.xkb to switch-LALT-LCTL.xkb. Keep the file original.xkb as a backup, better remove write permission.

Edit switch-LALT-LCTL.xkb in the block xkb_keycodes and exchange the keycodes for LALTand LCTL.

Run xkbcomp switch-LALT-LCTL.xkb $DISPLAY to active your new layout. Run xkbcomp original.xkb $DISPLAY to restore the old one.This worked wonderfully. I upgraded and now the behavior is changed. When I run the script to swap Left CTRL and CAPS, it switches–but the caps lock still turns on and off…

Example at the command prompt. Type asdf, then +a to go to the beginning of the line, then type asdf again. I will get ASDFasdf. The caps lock key and the control now seem to be mapped to the same key.

Running xev, I see that after running the script to swap the keys–pressing CAPS shows up as Control_L, and pressing LCTRL shows up as Caps_Lock.

It seems like the new version of NX is doing something with Caps now. Is there a way to disable this? Or is there a way I can swap Caps and CTRL on KDE?

[graywolf]

The problems you get with version 5 arise because server and client try to keep in sync the state of CAPS.

I’d suggest not to use xkbcomp scripting anymore but use ctrl:swapcaps option in the keyboard layout description. Depending on the client OS:

 

Linux:

Run a terminal in the client OS and set ctrl:swapcaps:

setxkbmap -option ctrl:swapcaps

Then run NoMachine client.

 

Windows/OS X

Locate file “keyboard” in the NoMachine client installation (usually C:\Program Files (x86)\NoMachine\share\keyboards in Windows or /Applications/NoMachine.app/Contents/Frameworks/share/keyboards in OS X).

Find line describing your keyboard layout in the file.

Add ctrl:swapcaps in the last field, for example if your keybard is US English, change line

English (United States),0x0409,US,en_US,,

into

English (United States),0x0409,US,en_US,,ctrl:swapcaps`

 

 

[gspalding]

graywolf thank you for your response, this indeed does seem to be what I want.

Since I’m on a Windows host, I went in and modified the keyboards file with the 2nd line you posted:

English (United States),0x0409,US,en_US,,ctrl:swapcaps`

But it still doesn’t seem to work.

The steps I took:

Changed my setxkbmap back
Then I shut down the NX session
I modified the keyboards file to include the line above
Reconnected to my linux client

I tried with and without the backtick at the end of the line and they both didn’t work. Should I be restarting my client?

[graywolf]

Sorry, the backtick was a typo.

Check the client log to be sure option ctrl:swapcaps is passed correctly (search for a file named “session” in %USERPROFILE%\.nx\R-…).

You need also swapcaps in the remote session. Check with sexkbmap -print. If swapcaps is not set, add it with setxkbmap -option ctrl:swapcaps

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