I just used EtreCheck to see if you can help me with my MacBook Pro. It's having the same problem as the original poster. Here is the report it generated:
EtreCheck version: 2.9.12 (265)
Report generated 2016-05-02 23:19:30
Download EtreCheck from https://etrecheck.com
Runtime 1:54
Performance: Excellent
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Problem: Other problem
Description:
Cursor keeps freezing when watching YouTube. The keyboard is also unresponsive (such as command-Q) EXCEPT FOR the power button. When the power button is pushed for a second, the screen goes dark; when I touch the power button a second time, the screen comes on and the cursor is responsive again. A few times, this hasn’t worked and I’ve had to hold down the power button til it restarts.
Hardware Information: ⓘ
MacBook Pro (Retina, 13-inch, Late 2013)
[Technical Specifications] - [User Guide] - [Warranty & Service]
MacBook Pro - model: MacBookPro11,1
1 2.4 GHz Intel Core i5 CPU: 2-core
8 GB RAM Not upgradeable
BANK 0/DIMM0
4 GB DDR3 1600 MHz ok
BANK 1/DIMM0
4 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en0: 802.11 a/b/g/n/ac
Battery: Health = Normal - Cycle count = 125
Video Information: ⓘ
Intel Iris
Color LCD 2560 x 1600
System Software: ⓘ
OS X El Capitan 10.11.4 (15E65) - Time since boot: about 2 days
Disk Information: ⓘ
APPLE SSD SM0256F disk0 : (251 GB) (Solid State - TRIM: Yes)
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk1) / : 249.77 GB (138.18 GB free)
Core Storage: disk0s2 250.14 GB Online
USB Information: ⓘ
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Thunderbolt Information: ⓘ
Apple Inc. thunderbolt_bus
Gatekeeper: ⓘ
Anywhere
Startup Items: ⓘ
ChmodBPF: Path: /Library/StartupItems/ChmodBPF
Startup items are obsolete in OS X Yosemite
System Launch Agents: ⓘ
[not loaded] 7 Apple tasks
[loaded] 153 Apple tasks
[running] 78 Apple tasks
System Launch Daemons: ⓘ
[not loaded] 44 Apple tasks
[loaded] 153 Apple tasks
[running] 92 Apple tasks
Launch Agents: ⓘ
[not loaded] com.adobe.AAM.Updater-1.0.plist (2016-05-02) [Support]
[loaded] com.coupons.coupond.plist (2014-02-19) [Support]
[loaded] com.google.keystone.agent.plist (2016-03-02) [Support]
[loaded] com.oracle.java.Java-Updater.plist (2015-05-25) [Support]
Launch Daemons: ⓘ
[loaded] com.adobe.agsservice.plist (2016-05-02) [Support]
[failed] com.adobe.fpsaud.plist (2016-04-15) [Support]
[running] com.backblaze.bzserv.plist (2015-05-15) [Support]
[loaded] com.google.keystone.daemon.plist (2016-03-02) [Support]
[running] com.hitbliss.helper.plist (2014-01-20) [Support]
[loaded] com.malwarebytes.MBAMHelperTool.plist (2016-01-15) [Support]
[loaded] com.oracle.java.Helper-Tool.plist (2015-05-25) [Support]
User Launch Agents: ⓘ
[loaded] com.adobe.AAM.Updater-1.0.plist (2014-01-06) [Support]
[running] com.amazon.music.plist (2015-05-05) [Support]
[running] com.backblaze.bzbmenu.plist (2016-04-30) [Support]
[loaded] com.citrixonline.GoToMeeting.G2MUpdate.plist (2016-01-21) [Support]
[running] com.google.Chrome.framework.plist (2016-04-30) [Support]
[running] ws.agile.1PasswordAgent.plist (2013-11-03) [Support]
User Login Items: ⓘ
Flux Application (/Applications/Flux.app)
iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
SpeechSynthesisServer Application (/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks /SpeechSynthesis.framework/Versions/A/SpeechSynthesisServer.app)
Other Apps: ⓘ
[running] 2BUA8C4S2C.com.agilebits.onepassword4-helper
[running] org.herf.Flux.47712
[loaded] org.mozilla.firefox.25312
[loaded] 397 Apple tasks
[running] 203 Apple tasks
Internet Plug-ins: ⓘ
AdobeAAMDetect: AdobeAAMDetect 1.0.0.0 - SDK 10.6 (2016-05-02) [Support]
FlashPlayer-10.6: 21.0.0.226 - SDK 10.6 (2016-04-21) [Support]
QuickTime Plugin: 7.7.3 (2016-03-24)
Flash Player: 21.0.0.226 - SDK 10.6 (2016-04-21) [Support]
CouponPrinter-FireFox_v2: 5.0.3 - SDK 10.6 (2014-02-19) [Support]
Default Browser: 601 - SDK 10.11 (2016-03-24)
Unity Web Player: UnityPlayer version 5.0.3f2 - SDK 10.6 (2015-11-14) [Support]
Silverlight: 5.1.41212.0 - SDK 10.6 (2016-05-01) [Support]
JavaAppletPlugin: Java 8 Update 77 build 03 (2016-04-17) Check version
User internet Plug-ins: ⓘ
CitrixOnlineWebDeploymentPlugin: 1.0.105 (2013-04-25) [Support]
Google Earth Web Plug-in: 7.1 (2013-10-07) [Support]
Safari Extensions: ⓘ
1Password - AgileBits - https://agilebits.com/onepassword (2016-04-14)
3rd Party Preference Panes: ⓘ
Backblaze Backup (2015-05-15) [Support]
Flash Player (2016-04-15) [Support]
Java (2016-04-17) [Support]
Time Machine: ⓘ
Time Machine not configured!
Top Processes by CPU: ⓘ
13% kernel_task
6% WindowServer
2% plugin-container
2% fontd
2% Finder
Top Processes by Memory: ⓘ
1.35 GB firefox
756 MB kernel_task
688 MB Finder
205 MB plugin-container
164 MB mdworker(9)
Virtual Memory Information: ⓘ
67 MB Free RAM
7.93 GB Used RAM (1.44 GB Cached)
378 MB Swap Used
Diagnostics Information: ⓘ
May 1, 2016, 05:22:07 PM ~/Library/Logs/DiagnosticReports/Adobe Photoshop Elements Editor_2016-05-01-172207_[redacted].crash
com.adobe.PhotoshopElements - /Applications/Photo Editing Apps/*/Adobe Photoshop Elements Editor.app/Contents/MacOS/Adobe Photoshop Elements Editor
May 1, 2016, 04:10:01 PM /Library/Logs/DiagnosticReports/Adobe Photoshop Elements Editor_2016-05-01-161001_[redacted].cpu_resource.diag [Details]
Apr 30, 2016, 12:44:20 PM Self test - passed
Apr 30, 2016, 12:50:33 AM ~/Library/Logs/DiagnosticReports/Adobe Photoshop Elements Editor_2016-04-30-005033_[redacted].crash
Apr 30, 2016, 12:14:46 AM ~/Library/Logs/DiagnosticReports/Adobe Photoshop Elements Editor_2016-04-30-001446_[redacted].crash