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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Incorrect output panning with intel-virtual-output"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=71441#c2">Comment # 2</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Incorrect output panning with intel-virtual-output"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=71441">bug 71441</a>
              from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
        <pre>Better:

diff --git a/tools/virtual.c b/tools/virtual.c
index 48fe347..c794bf3 100644
--- a/tools/virtual.c
+++ b/tools/virtual.c
@@ -954,6 +954,7 @@ static void context_update(struct context *ctx)
                        struct output *src = &clone->src;
                        struct output *dst = &clone->dst;
                        XRROutputInfo *o;
+                       XRRPanningInfo panning;
                        struct clone *set;
                        RRCrtc rr_crtc;

@@ -1033,6 +1034,7 @@ err:
                        XRRSetCrtcConfig(dst->dpy, res, rr_crtc, CurrentTime,
                                         dst->x, dst->y, dst->mode.id,
dst->rotation,
                                         &dst->rr_output, 1);
+                       XRRSetPanning(dst->dpy, res, rr_crtc, memset(&panning,
0, sizeof(panning)));
                        dst->rr_crtc = rr_crtc;
                }
                XUngrabServer(display->dpy);</pre>
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