How to configure XFCE to handle keyboard shortcuts\hotkeys on key-release\up, not key-press

Question

While using an application on XFCE, pressing a keyboard shortcut\hotkey that overlaps with an XFCE hotkey, I find the XFCE hotkey effect taking place instead.

For instance, Eclipse IDE has the hotkey: Shift + Alt + S, while XFCE switches the keyboard layout by using the hotkey Shift + Alt.

So when I press Shift + Alt, the keyboard layout changes before I have the chance to complete the hotkey combination and press S.

A colleague suggested that this is because XFCE processes hotkeys when they are pressed, not when they are released.

I do not want to change these shortcuts because I use Windows and Linux all the time and I do not want to confuse my self.

My questions are:

• How to configure XFCE to process hotkeys on key release, not on key pressing
• Does Enlightenment, Gnome 3, Mate, Cinnamon handle keyboard hotkeys better than XFCE ? Or at least in the way I'm mentioning here, which is on key releasing, not on key presssing.
• What other desktop environments handle hotkeys on releasing and not on pressing ?

Answer 1

It's an Xorg bug. Fixed here for Manjaro Linux. I had to follow these steps to manually skip PGP checking !

Answer 2

Muhammad's answer wasn't quite enough to fix this for me. Particularly in the case using the Super (Windows) key. I'm using Arch Linux with XFCE installed. I'll explain how I fixed this problem.

1. I downloaded the libxfce4ui source code from here (and used the instructions later): http://www.linuxfromscratch.org/blfs/view/7.8/xfce/libxfce4ui.html
2. I downloaded the patch file for this library from this link: https://bugzilla.xfce.org/show_bug.cgi?id=7845
3. I extracted the downloaded file from step 1 with tar xvf libxfce4ui-4.12.1.tar.bz2
4. I navigated into the extracted folder and applied the patch from step 2 with cd libxfce4ui-4.12.1 and patch -p1 < patchfile

5. I followed the instructions from download page in step 1 to build and install that library. You will need to install gcc if it is not installed already.

   ./configure --prefix=/usr --sysconfdir=/etc &&
   make
   sudo make install
   

After a reboot, everything worked well! I hope this helps!

To answer your follow-up question, XFCE is an outlier, every other DE I've tried (Desktop Environment) handles key bindings on release instead of press. This includes:

• Gnome
• KDE
• Cinnamon
• Mate
• LXDE
• LXQT