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<body><span class="vcard"><a class="email" href="mailto:zhixinx.liu@intel.com" title="zhixinx.liu <zhixinx.liu@intel.com>"> <span class="fn">zhixinx.liu</span></a>
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<a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [IVB] FBC increases power for libva video workload"
href="https://bugs.freedesktop.org/show_bug.cgi?id=65396">bug 65396</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEEDINFO
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<td>ASSIGNED
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<td>focus.luo@intel.com, zhixinx.liu@intel.com
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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [IVB] FBC increases power for libva video workload"
href="https://bugs.freedesktop.org/show_bug.cgi?id=65396#c22">Comment # 22</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [IVB] FBC increases power for libva video workload"
href="https://bugs.freedesktop.org/show_bug.cgi?id=65396">bug 65396</a>
from <span class="vcard"><a class="email" href="mailto:zhixinx.liu@intel.com" title="zhixinx.liu <zhixinx.liu@intel.com>"> <span class="fn">zhixinx.liu</span></a>
</span></b>
<pre>(In reply to Jani Nikula from <a href="show_bug.cgi?id=65396#c21">comment #21</a>)
<span class="quote">> Please retest with current nightly.</span >
FBC disabled on current nightly.
TEST Command:
[root@x-ivb16 ~]# cat /proc/cmdline
BOOT_IMAGE=kernels//nightly_parents/2014_10_01/drm-intel-nightly/913f5c269acd0010427cd7fee6b4812bdacd1cab/bzImage_x86_64
root=/dev/sda1 i915.i915_enable_fbc=1
modules_path=kernels//nightly_parents/2014_10_01/drm-intel-nightly/913f5c269acd0010427cd7fee6b4812bdacd1cab/modules_x86_64/lib/modules/3.17.0-rc7_drm-intel-nightly_913f5c_20141001+
kexec_jump_back_entry=0xca492c56
Add i915.i915_enable_fbc=1 into x-ivb16
Start X
[root@x-ivb16 ~]# cat /sys/kernel/debug/dri/0/i915_fbc_status
FBC disabled: disabled per chip default</pre>
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