[Nouveau] [Bug 99400] [nouveau] garbled rendering with glamor on G71

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99400

--- Comment #2 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Not that it's of much consolation, but the nv30 GL driver sucks. There are a
number of unhandled situations, and I wouldn't be overly surprised if glamor
were to hit one or several of them.

A "big hammer" approach to fixing some of the issues is running with
NV30_SWTNL=1, although there's plenty more issues that this won't have an
effect on. That usually fixes "bad geometry" issues, however the screenshot
seems to suggest that perhaps incompatible color and depth buffers are being
mixed - we print a warning about those in debug builds.

I'll have a look at the apitrace later to see if can try reproducing on my
NV34, although it's possible that won't work this time.

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