[Bug 71260] SNA in zaphod mode (multiple screens) has rendering issues with Xnest

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71260

--- Comment #6 from intelgraphics7 at gmx-topmail.de ---
I've just tried the fix from bug 71198. It makes things a slightly better it
seems but does not completely fix the issues. In regards to the screen shot
above (intel_screen_corruption_issue.jpg) the corruptions are reduced with this
fix in the "Application Launcher" window there. But the "Local Terminal"
corruptions still remain.

I've done some tests myself and I have found that I can get rid of the
xfce-terminal corruptions when I set NO_TILE_8x8 in sna_accel.c to one. So
sna_poly_fill_rect_tiled_8x8_blt() is disabled and some fallback function is
used.
I hope this helps a little in tracking this issue further.

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