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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [HSW eDP] Response time larger than expected"
href="https://bugs.freedesktop.org/show_bug.cgi?id=72211#c22">Comment # 22</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [HSW eDP] Response time larger than expected"
href="https://bugs.freedesktop.org/show_bug.cgi?id=72211">bug 72211</a>
from <span class="vcard"><a class="email" href="mailto:qingshuai.tian@intel.com" title="Qingshuai Tian <qingshuai.tian@intel.com>"> <span class="fn">Qingshuai Tian</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=95008" name="attach_95008" title="dmesg info of patched kernel with i915.fastboot=1 set">attachment 95008</a> <a href="attachment.cgi?id=95008&action=edit" title="dmesg info of patched kernel with i915.fastboot=1 set">[details]</a></span>
dmesg info of patched kernel with i915.fastboot=1 set
After applied patch in <a href="show_bug.cgi?id=72211#c21">comment 21</a> to the latest nightly
kernel(0dfe3ce67bbd11c5b5e53250b0552ac2f36ac668), the responsiveness I get with
and without i915.fastboot=1 is as follows:
The reponsetime without i915.fastboot=1:
Initcall time: 1199 msecs
Suspend time: 294 msecs
Resume time: 310 msecs
The reponsetime with i915.fastboot=1 set:
Initcall time: 149 msecs
Suspend time: 264 msecs
Resume time: 310 msecs
But when I applied the patch and enable the fastboot, the eDP monitor was black
without any outputs after machine boot up, while the backlight was turned on.
And after the system resume from s3, the eDP monitor returned to normal by
itself.</pre>
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