'Alt Gr' key messed up after aborting seamless mode -> duplicate of #2537

[SlankySloop]

Hi!

Using: 4.2.4-81684 (Host: Win7-64Bit; Guest: Ubuntu 11.4)

Today I accidentally hit the key combination for Seamless mode, but hit "Cancel" in the message box that comes up and asks for confirmation. After that I could not use "Alt Gr" anymore inside the virtual machine. After I switched to seamless mode (this time confirming the dialog) and back, everything was back to normal.

This is 100% reproducible for me - hit "Cancel" in the confirmation dialog and "Alt Gr" is broken. According to "xev" inside the virtual machine instead of just "keycode 108 (ISO_Level3_Shift)" hitting the broken "Alt Gr" key sends "keycode 37 (Control_L)" and then "keycode 108 (ISO_Level3_Shift)" - so it basically prepends a "Ctrl" press to any "Alt Gr" press which messes things up.

Likely others key don't work properly either in this state because I couldn't use "Alt + Tab" anymore inside the VM. Instead the host OS would react to them although key presses were captured.

The very same error occurs with Ubuntu 12.04. However, when I tried with a VM running Windows XP SP3 or Windows 7 SP1 respectively (got key presses with ​http://www.donationcoder.com/Software/Skrommel/index.html#ShowOff) I noticed that it will *always* get a LControl+RAlt sequence when I press "Alt Gr" no matter what. I'm not sure if this is normal for Windows or also related to this bug.

[Michael Thayer]

See also ticket #3536.

[Michael Thayer]

I will close this as a duplicate of #2613. Please re-open if you disagree.

The thing with Windows and LCtrl+RAlt is historical - Microsoft decided long ago to always make AltGr produce that sequence in Windows because non-international US keyboards do not have that key. Please do not ask me to defend the logic behind that decision though.

[Michael Thayer]

Duplicate of #2537 in fact.