[Bug 46707] Microsoft Word 2019 freeze the whole screen on nouveau driver with CSMT enabled

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=46707

Matteo Bruni <matteo.mystral at gmail.com> changed:

           What    |Removed                     |Added
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         Resolution|---                         |NOTOURBUG
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #3 from Matteo Bruni <matteo.mystral at gmail.com> ---
Yes, you are correct. Nouveau has known issues with processes using OpenGL from
multiple threads / contexts and Word 2013+ with CSMT enabled does exactly that.

I don't think always disabling CSMT on Nouveau is a good idea, most
applications only use one d3d device (which means only one thread / GL context
in Wine) and those generally work better with CSMT enabled.
We could potentially introduce a quirk / hack to make sure only one (command
stream) thread at a time executes GL calls on Nouveau, which should workaround
the issue without the downsides I just mentioned. Not sure that's a good idea
though.

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