Xpra: Ticket #2345: cache opengl probe results

It would be nice to be able to probe the opengl state just once and cache the results - this would speedup the client startup.

On Linux, this could be cached by graphics card so that a change in configuration would cause xpra to re-run the opengl probing:

$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Skylake GT2 [HD Graphics 520] (rev 07)

Looks like this would involve parsing the output of lspci which is going to be slow.. Python, In linux obtain VGA specifications via lspci or HAL?

Preferably, this cache should be per-host: Get a unique computer ID in Python on windows and linux. And ideally, we should somehow record the driver version in case a driver update / downgrade breaks things.

Detecting the driver makes this too hard: by the time we get the driver information, we've already done most of the job required for a full opengl device test.

Xpra: Ticket #2345: cache opengl probe results

Sat, 29 Jun 2019 18:59:02 GMT - Antoine Martin: status, description changed

Mon, 01 Jul 2019 18:23:06 GMT - Antoine Martin: description changed

Mon, 22 Jul 2019 16:54:21 GMT - Antoine Martin:

Thu, 25 Jul 2019 14:18:11 GMT - Antoine Martin: status changed; resolution set

Sat, 23 Jan 2021 05:48:49 GMT - migration script: