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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [regression] Screen tears on xrandr orientation inverted"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86548#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [regression] Screen tears on xrandr orientation inverted"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86548">bug 86548</a>
from <span class="vcard"><a class="email" href="mailto:jeff@deserettechnology.com" title="Jeff Cook <jeff@deserettechnology.com>"> <span class="fn">Jeff Cook</span></a>
</span></b>
<pre>I believe FBC is disabled. Here's what I found in /sys:
jeff@jeff-yoga:~$ sudo cat /sys/kernel/debug/dri/0/i915_fbc_status
FBC disabled: disabled per chip default
jeff@jeff-yoga:~$ sudo cat /sys/kernel/debug/dri/64/i915_fbc_status
FBC disabled: disabled per chip default</pre>
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