<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [sna] Occasional artifacts on window borders (theme dependent)" href="https://bugs.freedesktop.org/show_bug.cgi?id=80033#c23">Comment # 23</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [sna] Occasional artifacts on window borders (theme dependent)" href="https://bugs.freedesktop.org/show_bug.cgi?id=80033">bug 80033</a> from <a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> Chris Wilson</a> <pre>(In reply to <a href="show_bug.cgi?id=80033#c22">comment #22</a>) > (In reply to <a href="show_bug.cgi?id=80033#c20">comment #20</a>) > > If you are certain it is a repeating pattern, then it the BLT being loaded > > up with garbage. The BLT takes an 8x8 pattern to be repeated, so it that > > matches the repeat distance I know it is still junk being fed into that > > command. :| > > > > Have you refined your test? Could you? > > Never saw a periodicity longer than 8px; sometimes shorter, but that could > be just because the garbage has a pattern. > > I've replaced the offending xpm with a 3px/4px wide one. With the 3px one I > couldn't see any stripes, only the right edge of the bottom border shows > sometimes a wrong pixel. With 4px it's basically the same as with 2px (maybe > a bit less frequent) and a period of 8px again. That confirms it is the NxM conversion to 8x8 that is still upset. Did you test commit c257c936b42b92827b784cee0b7caa54e6040364 Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>> Date: Wed Jun 18 22:15:42 2014 +0100 sna: Fix modulus for partial conversion of tiles to 8x8 patterns ? > And another observation (tested with commit > d49f53cc00258e3b1e1a898c02e219b336716002, because it's much easier to > reproduce): The stripes appear if the bottom border is >1009px (or 1013 if > one includes the corner pixmaps). I believe that is just the theme deciding to use a staging pixmap for wide outlines. (Incorrectly, I might add since the hardware is more efficient doing the operation in place twice than once to a pixmap then copying it.)</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>