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| author | Povilas Kanapickas <povilas@radix.lt> | 2021-09-03 16:23:06 +0300 |
|---|---|---|
| committer | Povilas Kanapickas <povilas@radix.lt> | 2021-09-20 23:10:26 +0300 |
| commit | 2d5541d6c30c67d6a469cba372b6e336a2eeb626 (patch) | |
| tree | cbe11b76fc55d44370ccf138d41ca655ec05d3fa /config.tests/x11/xinput2/xinput2.cpp | |
| parent | 1479f057f3861ff9bdbbaee7b1f495512c64efbc (diff) | |
3rdparty: Fix forwards-compatibility bug in bundled xinput xcb module
libxcb thinks that it knows about all device class types sent by the X
server XInput extension. With the addition of touchpad gestures in
XInput 2.4 and X server 21.1 this is no longer the case and libxcb fails
horribly by thinking that the protocol was malformed.
The X server currently has a workaround, but it would not address the
following situation:
- there are multiple modules within the same X client (e.g. part of the
application uses Qt, another part talks to X server via another library)
- both of the modules talk to XI
- at least one module requests for XI 2.4 protocol support.
The request for XI 2.4 disables the workaround on the X server and Qt
side would crash horribly.
This bug is being fixed upstream in these MRs:
https://gitlab.freedesktop.org/xorg/proto/xcbproto/-/merge_requests/23
https://gitlab.freedesktop.org/xorg/lib/libxcb/-/merge_requests/20
Change-Id: Idf345271340031152b512ef59f619313be5ec226
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Diffstat (limited to 'config.tests/x11/xinput2/xinput2.cpp')
0 files changed, 0 insertions, 0 deletions