[Nouveau] [Bug 74316] [NV92] Graphical corruption on KDE shutdown/restart/log out screen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=74316

AnAkkk <anakin.cs at gmail.com> changed:

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

--- Comment #6 from AnAkkk <anakin.cs at gmail.com> ---
According to kde developers, there may be a mesa or nouveau bug after all:

"Fredrik says, the configs should arrive with min. samples first, so this would
be a MESA/nouveau bug.'

"It seems to prefer TrueColor over DirectColor (that's expected) over sample
count sorting (may be intended), but even then 0x157 should apparently take
precedence: 

0x153 24 tc 0 24 0 r . . 8 8 8 0 . . 0 0 0 0 0 0 0 0 0 None 
0x157 24 tc 0 24 0 r y . 8 8 8 0 . . 0 0 0 0 0 0 0 0 0 None 
0x1ae 24 dc 0 24 0 r y . 8 8 8 0 . . 0 0 0 0 0 0 0 0 0 None 

So given the sample count sorting is still supposed, there's a bug in either
nouveau or MESA, it appears the double buffer support is ignored when sorting
the list (so that 0x153 and 0x157 are assumed equal, 0x153 moved to front and
0x157 ignored from sorting) - but that's sth. for the MESA devs to say =)"

See https://bugs.kde.org/show_bug.cgi?id=330986#c41

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