[Bug 95069] [DRI2][PRIME] display black window when enable GPU offloading

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95069

--- Comment #3 from Qiang Yu <qiang.yu at amd.com> ---
I catch the xtrace of glxgears, when I change focus, it will get
invalidateBuffers event
and get buffer again, the content shows. But I can't find why at the begging
the pixmap
is get pinned first and the sequence can change with fast/slow DDX.

000:>:10ae2: Event DRI2-InvalidateBuffers(103) drawable=0x03600002
000:>:10ae2: Event DRI2-BufferSwapComplete(102) drawable=0x00000002
ust_hi=56623106 ust_lo=0 msc_hi=0 msc_lo=0 sbc_hi=0 sbc_lo=34143
000:>:0ae1:32: Reply to SwapBuffers: swap_hi=0 swap_lo=34143
000:>:0ae2:32: Reply to GetInputFocus: revert-to=Parent(0x02) focus=0x0380000b
000:<:10ae3: 20: DRI2-Request(153,7): GetBuffersWithFormat drawable=0x03600002
attachments={attachment=BackLeft(0x00000001) format=0x00000018};
000:>:0ae3:52: Reply to GetBuffersWithFormat: width=300 height=300
buffers={attachment=BackLeft(0x00000001) name=0x00000004 pitch=1280 cpp=4
flags=0x00000000};

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