When using two monitors, Alt+drag cursor to send signal from the center of the whole display instead of the gaming monitor

[AlynxZhou]

Your system information

• System information from steam (Steam -> Help -> System Information) in a gist: https://gist.github.com/AlynxZhou/927a3eadc986b2d82277c696b24bf8e3
• Have you checked for system updates?: [Yes/No] Yes
• Are you using the latest stable video driver available for your system? [Yes/No] Yes
• Have you verified the game files?: [Yes/No] Yes

Please describe your issue in as much detail as possible:

Describe what you expected should happen and what did happen. Please link any large pastes as a Github Gist.

I have a two-monitor setup, and I set Dota2 to fullscreen to one of my monitor, and when I use Alt+drag cursor to send a signal, the mouse cursor is set to the center of the whole display (the center of the two monitors), instead of the center of current gaming monitor.

Steps for reproducing this issue:

1. A 2 monitors setup.
2. Open Dota2 in fullscreen mode.
3. Alt+drag cursor to see where your cursor is.

[kisak-valve]

Hello @AlynxZhou, can you check if your desktop environment has an alt + left click global hotkey? I suspect that is part of what's causing your issue. Something similar to what's described in https://askubuntu.com/questions/118151/how-do-i-disable-window-move-with-alt-left-mouse-button-in-gnome-shell.

[AlynxZhou]

It's super, not alt.

[aploskov]

I use Alt+drag cursor to send a signal, the mouse cursor is set to the center of the whole display (the center of the two monitors), instead of the center of current gaming monitor.

Hi, @kisak-valve, this problem can be reproduced by one more thing:

• Install Ubuntu (21.10, Gnome, X11 session, two monitors);
• Install Steam & Dota 2;
• Play game with bots;
• Use chat wheel (Button Y by default);
• Chat wheel will be displayed correctly (in the game), but cursor will be moved to a position between two monitors and you will move your camera to this direction.

It looks like you detect center of the screen position by selecting center of the whole x11 surface position, not only one monitor.