<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - HDCP compliance sub test cases failure due to hpd timeout" href="https://bugs.freedesktop.org/show_bug.cgi?id=109671#c9">Comment # 9</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - HDCP compliance sub test cases failure due to hpd timeout" href="https://bugs.freedesktop.org/show_bug.cgi?id=109671">bug 109671</a> from <a class="email" href="mailto:shiqiang.yu@intel.com" title="Yu Shiqiang <shiqiang.yu@intel.com>"> Yu Shiqiang</a> <pre>(In reply to Ramalingam C from <a href="show_bug.cgi?id=109671#c5">comment #5</a>) > (In reply to Edward Tan from <a href="show_bug.cgi?id=109671#c3">comment #3</a>) > > Just to make it clear that there is no > > restriction for validating 1A-02 & 03 for the HDP timer which is 100ms and > > that is just a default setting value. > > So can we infer that this issue doesn't block the compliance clearance? > > BTW, what does this HPD_Timer setting stand for? Duration for which monitor > is off(plugged out)? > > From the log attached, we can see that after the hot-unplug and hot-plug > HDCP src is not starting the authentication. > > Two reasons possible: > 1. During hotplug out, EDID is still available on DDC. But since with larger > HPD_Timer, this is working. so this is ruled out. > 2. I915 is not processing the Hotplug event within 100mSec!? regression in > 5.0? as it is ok with the older kernel. > > Few more basic questions to understand the compliance setup: > 1. How do you initiate the HDCP authentication from userspace? > 2. For each hot-plug event, we need to start the rendering of FB and then > HDCP authentication. How are we doing it? Userspace will retrigger enablement after detecting hotplug-in event. For each hot plut in event, the hdcp daemon resets the Content Protection drm property to desired via drmIoctl call, and what's does the "start the rendering of FB" mean here?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>