<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body>
<p>
<div>
<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - radeonsi: xterm scrollback buffer disappears while Shift+PgUp and PgDn"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110214#c64">Comment # 64</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - radeonsi: xterm scrollback buffer disappears while Shift+PgUp and PgDn"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110214">bug 110214</a>
from <span class="vcard"><a class="email" href="mailto:diego.viola@gmail.com" title="Diego Viola <diego.viola@gmail.com>"> <span class="fn">Diego Viola</span></a>
</span></b>
<pre>(In reply to Michel Dänzer from <a href="show_bug.cgi?id=110214#c63">comment #63</a>)
<span class="quote">> (In reply to Diego Viola from <a href="show_bug.cgi?id=110214#c62">comment #62</a>)
> > export MESA_EXTENSION_OVERRIDE="-GL_NV_texture_barrier"
> >
> > This helps alleviate the problem (xterm does not have the issue with this),
> > however, the problem is still present in Xephyr.
>
> To clarify, you mean Xephyr from xserver 1.16 here (where glamor didn't make
> use of GL_NV_texture_barrier yet), disabling GL_NV_texture_barrier helps
> with current Xephyr, right?</span >
Yes, that's correct.
If I set `export MESA_EXTENSION_OVERRIDE="-GL_NV_texture_barrier"
` before running `startx`, xterm works fine either in X or Xephyr (from git
master).
<span class="quote">>
> It seems like DPBB needs to be disabled when glTextureBarrier(NV) is called,
> otherwise primitives may be reordered across the barrier. Does that make
> sense, Marek?</span ></pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>