detect lack of transparency support and disable it to save bandwidth

[totaam]

Issue migrated from trac ticket # 577

component: client | priority: minor | resolution: wontfix

2014-05-27 05:51:05: totaam created the issue

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In my testing, virtualbox virtual machines would only display transparent windows with alpha if the accelerated 3D drivers are installed.
I was hoping that checking for compositing would help (see r6575), sadly it does not. (we already check rgba visuals, etc..)
Hopefully there is away to detect the lack of transparency, one I am not aware of.

[totaam]

2019-09-21 13:15:14: antoine changed status from new to closed

[totaam]

2019-09-21 13:15:14: antoine set resolution to wontfix

[totaam]

2019-09-21 13:15:14: antoine commented

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niche setup, not worth the extra effort.