Bug 1007877 - Only trigger grab sequence upon key release, instead of press
Only trigger grab sequence upon key release, instead of press
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: gtk-vnc (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
: rc
: ---
Assigned To: Daniel Berrange
Desktop QE
Depends On:
  Show dependency treegraph
Reported: 2013-09-13 09:36 EDT by Daniel Berrange
Modified: 2014-11-10 07:17 EST (History)
3 users (show)

See Also:
Fixed In Version: gtk-vnc-0.5.2-4.el7
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2014-06-13 05:48:33 EDT
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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External Trackers
Tracker ID Priority Status Summary Last Updated
GNOME Bugzilla 685257 None None None Never

  None (edit)
Description Daniel Berrange 2013-09-13 09:36:13 EDT
Description of problem:
Virt-manager uses the keyboard shortcut ctrl+alt to toggle inside/outside the
VM (aka release pointer). Now Gnome uses ctrl+alt+arrow_key to switch virtual
desktops. So these two shortcuts collide and virt-manager will grab the key
presses as soon as ctrl+alt is pressed and toogle inside/outside the VM, which
makes switching desktops impossible.

There should be at least 2 ways to get this working.

Solution 1 (more elegant but probably more complex):
Do not immediately take action on key-down press event, instead wait for
another key to be pressed besides ctrl+alt (i.e. ctrl+alt+left) and react on
that. Otherwise if only ctrl+alt is pressed and the keys are released trigger
on that event to do the actual toggle inside/outside VM. (Note: when outside
the VM ctrl+alt+<something> should be handled by the windowmanager)

Benefit of this approach: All ctrl+alt+<something> keyboard shortcuts should
work, no more need for "ctrl+alt+<something> send keys". This should also allow
to switch virtual desktops inside and outside of a VM.

Solution 2 (less intrusive and easier to accomplish):
Just check whether currently inside or outside of the VM and pass
ctrl+alt+<something> to the window manager if outside.

Benefit of this approach: Allow switching of virtual desktops outside of VM.
Should be easier to accomplish without having looked at the actual code.

I'd prefer getting Solution 1 to work without knowing how much effort that
would cost. Thanks for considering, I'll try to help out on this as good as I

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1.Try to press 'Ctrl+Alt+Left-Arrow' in the VM window

Actual results:
Ctrl-Alt  trigger grab sequenece

Expected results:
Ctrl+alt+left-arrow goes to the VM

Additional info:
Comment 6 Ludek Smid 2014-06-13 05:48:33 EDT
This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.

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