[Bug 1515881] Re: Ctrl-Space no longer works

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On 2015-11-14T23:32:28+00:00 forek wrote:

This is NOT a duplicate of #341157.  I am running a version of Konsole
with the fix for that bug already applied (v15.08.3).

The symptoms are identical to #341157, however:  If I hit Ctrl-Space in
'emacs -nw' or 'showkey -a' nothing appears.

Reproducible: Always

Steps to Reproduce:
1. start konsole
2. run 'showkey -a'
3. press Ctrl-Space

Actual Results:  
nothing

Expected Results:  
it should show ^@

Ubuntu 15.10 (wily) 64-bit.

The problem appears in both the packaged version of Konsole
(konsole-4:15.08.2-0ubuntu2) and in Konsole v15.08.3 compiled from the
KDE Git repository.

$ konsole --version
Qt: 5.4.2
KDE Frameworks: 5.15.0
Konsole: 15.08.0

Reply at:
https://bugs.launchpad.net/ubuntu/+source/konsole/+bug/1515881/comments/16

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On 2015-11-14T23:43:33+00:00 forek wrote:

If I check out 9d062f1f522a50aa5ec2ae2a95ce6124b4427b5b (the Git commit
that fixed bug #341157), build it, and run it, I still experience the
same problem.  So, this must not be a regression; there must be some
other underlying cause.

xev shows the Ctrl, Space, Space release, and Ctrl release events.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/konsole/+bug/1515881/comments/17

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On 2015-11-15T01:35:06+00:00 forek wrote:

I can get it to work by following these steps:
  1. edit the current profile
  2. go to the Keyboard tab
  3. click Edit (the selected entry is "Default (XFree 4)")
  4. click Add
  5. enter Space+Ctrl in the Key Combination column
  6. enter \x00 in the Output column
Should I need to do this?

Using gdb I noticed that for the Ctrl+Space QKeyEvent:
  * event->modifiers() & Qt::ControlModifier is true
  * event->key() is Qt::Key_Space (decimal 32, hex 0x20)
  * event->text().isEmpty() is true

Without the Space+Ctrl key binding, KeyboardTranslator::findEntry()
returns an empty entry, which causes Vt102Emulation::sendKeyEvent() to
send event->text(), which is empty.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/konsole/+bug/1515881/comments/18


** Changed in: kde-baseapps
       Status: Unknown => New

** Changed in: kde-baseapps
   Importance: Unknown => High

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Title:
  Ctrl-Space no longer works

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