Comment 2 Pierre Ossman 2019-12-13 14:02:44 CET

Note that this might be problematic on Windows where the mouse drivers often do magical stuff for the extra buttons instead of directly passing them on to the applications.

Comment 3 Pierre Ossman 2022-07-07 10:25:10 CEST

https://www.reddit.com/r/gnome/comments/uhfvp8/comment/i7fg9yp/?utm_source=share&utm_medium=web2x&context=3

Great product! Remote-ing into a Linux VM from macOS is great, especially over fast LAN.

Chiming in with lacking mouse button events, though. When I run `xev` there is nothing for forward and back button presses on my Logi M650.

Button events work fine to a Windows VM on same host over RDP.

Comment 6 Pierre Ossman 2024-11-18 13:24:36 CET

Support for more mouse buttons has now been merged upstream:

https://github.com/TigerVNC/tigervnc/pull/1826

Comment 8 Adam Halim 2025-01-20 14:00:13 CET

Support for more mouse buttons has also been merged in noVNC:

https://github.com/novnc/noVNC/pull/1919

Comment 9 Adam Halim 2025-01-22 10:37:03 CET

We should now have support for the forward/back mouse buttons in Web Access after the noVNC vendor drop (bug 8484), but since we don't have support for it in our server yet, we can't test it properly.

Comment 11 Adam Halim 2025-03-04 14:37:01 CET

We now have support for forward/back mouse buttons, as of bug 8485.

Comment 12 Alexander Zeijlon 2025-03-05 17:27:23 CET

Testing

Client with EMB, Server with EMB:
=================================

ThinLinc server running on RHEL 9.

ThinLinc clients running on:

* Fedora 41
* Windows 10
* Windows 11
* macOS 15
* Raspberry Pi OS (armhf)

Tested normal usage, browsing web pages and navigating local file browser. I also attempted to hold down many buttons in different combinations at the same time to see of the push-down-state is maintained regardless.

✅ Back and forward buttons work as expected.


Client with EMB, Server without EMB:
====================================

ThinLinc client running on Fedora 41. ThinLinc server running on RHEL 9.

✅ Back and forward buttons do not work, which is expected.


ThinLinc Web Access:
====================

Browsers:

* Edge
* Chromium / Google Chrome
* Safari

Tested normal usage, browsing web pages and navigating local file browser.

✅ Back and forward buttons work as expected.

Note 1:
=======
I also attempted to hold down many buttons in different combinations at the same time to see if the push-down-state is maintained regardless. There are scenarios where holding down multiple buttons at once do not properly trigger events, see bug 7400.


Note 2:
=======
Back and forward buttons do not work in a session in Firefox, see bug 8467.

Comment 13 Alexander Zeijlon 2025-03-06 09:33:46 CET

> (EMB == ExtendedMouseButtons pseudo-encoding)
> MUST:
> * Back and forward mouse buttons should work in a session if both the
>   ThinLinc server and ThinLinc client support EMB.
Back and forward mouse buttons work when both server and client support EMB.
> * If either the ThinLinc server or the ThinLinc client do not support EMB,
>   mouse behavior should fall back to back and forward mouse buttons not being
>   usable.
In scenarios where either the server or client does not support EMB, back and forward mouse buttons are non-functional, which means that we are falling back to using the behavior that existed before we synced with upstream TigerVNC.
> * Back and forward mouse buttons should work in a session running in ThinLinc
>   Web Access.
Back and forward mouse buttons work in ThinLinc Web Access, but there are a couple of limitations, see Note 1 and Note 2 in comment 12.

Note 1 is not a regression, and in fact the behavior has improved a bit where these "lost" events now are queued instead of lost.

Note 2 is not our bug, as this is a limitation in the current version of Firefox (v135).