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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [GTK] Bad performance in accelerated compositing mode with the modesetting intel driver and DRI3 enabled"
href="https://bugs.webkit.org/show_bug.cgi?id=160491#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [GTK] Bad performance in accelerated compositing mode with the modesetting intel driver and DRI3 enabled"
href="https://bugs.webkit.org/show_bug.cgi?id=160491">bug 160491</a>
from <span class="vcard"><a class="email" href="mailto:cgarcia@igalia.com" title="Carlos Garcia Campos <cgarcia@igalia.com>"> <span class="fn">Carlos Garcia Campos</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=160491#c2">comment #2</a>)
<span class="quote">> I was tempted to r+ but it looks like this is an undesirable side effect, so
> I'd prefer not to rely on that. From the freedesktop bug:
>
> "Weird, not sure why that avoids the problem; maybe there's an off-by-one
> bug somewhere which causes the window to be incorrectly considered
> on-screen. I wouldn't recommend relying on that. Also, again I'm not sure
> that negative coordinates can never be visible."</span >
Yes, but he also said that using WidthOfScreen is bad in any case, so if the patch fixes that and works as a workaround, we could land it in any case and then continue working a better solution, but with a workaround to make WebKitGTK+ usable again.
<span class="quote">> Also
>
> "Assuming a window is really the only possibility, (why) can't it set the
> swap interval to 0 via one of the GLX extensions for this, to prevent
> SwapBuffers operations from getting throttled?"
>
> Can't we do this instead?</span >
I guess, I'm not a graphics expert, and I don't even know if we really need to use a window or not. I'll take a look at the swap interval thing in any case.</pre>
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