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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - screen corruption using SNA and TearFree on Intel GeminiLake"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105720#c11">Comment # 11</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - screen corruption using SNA and TearFree on Intel GeminiLake"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105720">bug 105720</a>
from <span class="vcard"><a class="email" href="mailto:clinton.a.taylor@intel.com" title="Clinton Taylor <clinton.a.taylor@intel.com>"> <span class="fn">Clinton Taylor</span></a>
</span></b>
<pre>(In reply to Chris Wilson from <a href="show_bug.cgi?id=105720#c9">comment #9</a>)
<span class="quote">> Variant of earlier test, force TearFree to use a new(ish) scanout on every
> frame:
>
> diff --git a/src/sna/sna_display.c b/src/sna/sna_display.c
> index e7bf6cab..409bb9bf 100644
> --- a/src/sna/sna_display.c
> +++ b/src/sna/sna_display.c
> @@ -1785,7 +1785,7 @@ static bool wait_for_shadow(struct sna *sna,
> }
>
> bo = sna->mode.shadow;
> - if (flip_active) {
> + if (flip_active || 1) {
> bo = kgem_create_2d(&sna->kgem,
> pixmap->drawable.width,
> pixmap->drawable.height,
>
> It is still pulling the scanout from a cache (or else we need to clflush
> everytime) but we now have a full frame delay before reuse, and we are
> forced to do a fullscreen copy everytime.</span >
Still reproducible with this patch.</pre>
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