Source:http://www.hawkdive.com/2015/11/fix-hdcp-compliant-display-error-when.html

Issue: If you are facing issue with playing Netflix content through Safari since upgrading to Yosemite / El Capitan and you don't have a secondary display connected.Specifically, Netflix will start to play the content and then display an error after a few seconds. The error reads "Whoops, something went wrong... display error. There appears to be a display problem. Please ensure your monitor is HDCP compliant and is not mirror using airplay."

Solution: This issue has obviously nothing to do with the Monitor being HDCP compliant because most of the monitor these days are HDCP compliant, still you have to be sure if your's is.My monitor is HDCP compliant (HP ZR30W) and it's the only monitor connected to my 2014 MacPro.

As per the Netflix, if you experience the error code S7363-1266-48444350 while watching Netflix videos on your Mac computer, it's typically caused by an unsupported monitor or screen. Apple only supports playback on internal monitors or through HDCP compatible monitors. Follow the troubleshooting steps below to resolve the issue.

1. Disconnect your computer from your external monitor and try playing a movie or TV show again. If this resolves your issue, it's likely that your external monitor or TV does not support HDCP.

2. We have found that using DisplayLink software can cause issues when watching Netflix. Remove the software by following the steps below:


Select the Finder icon from the Dock at the bottom of the screen.
Select Applications.
Drag the DisplayLink app to the Trash.
Right click the trash icon and select Empty Trash.
Try Netflix again.


3. Restart your computer.Once restarted, try Netflix again.


Real Solution to HDCP Compliant monitor error while watching Netflix on Safari


This all happened due to the enforcement of HTML 5 in Safari.Last year Netflix released video streaming in HTML5 in Safari on Yosemite to safe battery power.Apple implemented the Media Source Extensions (MSE) using their highly optimized video pipeline on OS X. This lets you watch Netflix in buttery smooth 1080p without hogging your CPU or draining your battery. In fact, this allows you to get up to 2 hours longer battery life on a MacBook Air streaming Netflix in 1080p - that’s enough time for one more movie!

Apple also implemented the Encrypted Media Extensions (EME) which provides the content protection needed for premium video services like Netflix.

The errors comes due to Safari defaulting to HTML5 vs using Silverlight like it did in Mavericks.So the options are,

if you want to use Safari, Enter Netflix and go to your account, then to your profile, then to Playback settings and there, uncheck the bottom option (prefer HTML5 instead of Silverlight), you should be able to play movies again and obviously, you have to have Silverlight in your computer.This will revert to Silverlight and will AirPlay fine in Safari.You just need to make sure the Silverlight plugin is enabled and updated and does not have any issue.

Check if the Silverlight Plugin is enabled

From your Safari menu bar click Safari > Preferences then select the Security tab.

Now click Website Settings to the right of: Internet plug-ins

Select Silverlight on the left then select Allow or Ask from the: When visitng other websites pop up menu on the right.

If you want to use HTML5, just leave the setting for HTML5 on in Netflix and use Chrome, Firefox, etc.

3. Change your user agent each time you want to use Netflix on Safari

This will "trick" Netflix into thinking your using one of those browsers the selected user agent belongs to, and will use silverlight plugin.

Safari only sets the user agent for that one tab so none of your other tabs are affected. It's also reset when you close the tab, so if you were to open Netflix in a new tab it would be using the default user agent.So you have to change the user agent each time you want to open Netflix.Here is how you can change the user agent of Safari.

1. First of all Enable Develop Menu in Safari

Open Safari's Preferences by selecting 'Safari, Preferences' from the menu.
Click the 'Advanced' tab.

Place a check mark next to 'Show Develop menu in menu bar.

2. Click on Develop Menu,Navigate to User Agent and change it to a prior version of Safari.
3. Try to Load Netflix now and it should be working fine.


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