Locate the speaker icon (typically to the left of the clock) in the Windows taskbar. If you see an X beside it, your PC's volume is muted. Press the Volume-Up button several times, or click the speaker icon and drag the slider to the right. Look for an on-screen indicator that the volume is rising. As a service disabled veteran owned business, OT Training Solutions has first-hand knowledge of training and education services required by U.S. And foreign governments, both military and civilian. We have built a team that is strong, trained and motivated, and one that is more than 90 percent comprised of veterans and retired military personnel.
Operational technology (OT) is hardware and software that detects or causes a change, through the direct monitoring and/or control of industrial equipment, assets, processes and events.[1] The term has become established to demonstrate the technological and functional differences between traditional IT systems and Industrial Control Systems environment, the so-called 'IT in the non-carpeted areas'. Examples of operational technology include:
- Computer Numerical Control (CNC) systems, including computerized machine tools
- Scientific equipment (e.g. digital oscilloscopes)
- Building Management and Building Automation Systems, (BMS)/(BAS)
- Lighting controls both for internal and external applications
- Energy monitoring, security and safety systems for the built environment
- Transportation systems for the built environment
Technology[edit]
Usually environments containing Industrial Control Systems (ICS), such as: supervisory control and data acquisition (SCADA) systems, distributed control systems (DCS), Remote terminal units (RTU) and programmable logic controllers (PLC) as well as dedicated networks and organization units. The built environment, whether commercial or domestic, is increasingly controlled and monitored via 10's,100's and 1,000s of Internet of Things (IoT) devices. In this application space, these IoT devices are both interconnected via converged technology edge IoT platforms and or via 'Cloud' based applications. Embedded Systems are also included in the sphere of operational technology (e.g. SMART instrumentation), along with a large subset of scientific data acquisition, control & computing devices. An OT device could be as small as the ecu of a car or as large as the distributed control network for a national electricity grid.
Systems[edit]
Systems that process operational data (including electronic, telecommunications, computer systems and technical components) are included under the term operational technology.
OT systems can be required to control valves, engines, conveyors and other machines to regulate various process values, such as temperature, pressure, flow, and to monitor them to prevent hazardous conditions. OT systems use various technologies for hardware design and communications protocols, that are unknown in IT. Common problems include supporting legacy systems & devices and numerous vendor architectures and standards.
Since OT systems often supervise industrial processes, most of the time availability must be sustained. This often means that real time (or near-real time) processing is required, with high rates of reliability and availability.
Laboratory systems (heterogenous Instruments with embedded computer systems or often non standardized technical components used in their computer systems) are commonly a borderline case between IT and OT since they mostly clearly don't fit into standard IT scope but also are often not part of OT core definitions.
Protocols[edit]
Historical OT networks utilized proprietary protocols optimized for the required functions, some of which have become adopted as 'standard' industrial communications protocols (e.g. DNP3, Modbus, Profibus, LonWorks, DALI, BACnet, KNX, EnOcean). More recently IT-standard network protocols are being implemented in OT devices and systems to reduce complexity and increase compatibility with more traditional IT hardware (e.g. TCP/IP); this however has had a demonstrable reduction in security for OT systems, which in the past have relied on air gaps and the inability to run PC-based malware (see Stuxnet for a well-known example of this change).
Origins[edit]
The term Operational Technology as applied to industrial control systems was first published in a research paper from Gartner in May 2006 (Steenstrup, Sumic, Spiers, Williams) [2]and presented publicly in September 2006 at the Gartner Energy and Utilities IT Summit. Initially the term was applied to power utility control systems, but over time was adopted by other industrial sectors and used in combination with IoT.[3] A principal driver of the adoption of the term was that the nature of operational technology platforms had evolved from bespoke proprietary systems to complex software portfolios that rely on IT infrastructure. This change was termed IT OT convergence.[4] The concept of aligning and integrating the IT and OT systems of industrial companies gained importance as companies realized that physical assets and infrastructure was both managed by OT systems but also generated data for the IT systems running the business. In May 2009 a paper was presented at the 4th World Congress on Engineering Asset Management Athens, Greece outlining the importance of this in the area of asset management [5]
Industrial technology companies such as GE, Hitachi, Siemens, ABB and Rockwell are the main providers of OT platforms and systems either imbedded in equipment or added to them for control, management and monitoring. These industrial technology companies have needed to evolve into software companies rather than being strictly machine providers. This change impacts their business models which are still evolving [6]
Security[edit]
From the very beginning security of Operational Technology has relied almost entirely on the standalone nature of OT installations, security by obscurity. At least since 2005 OT systems have become linked to IT systems with the corporate goal of widening an organization's ability to monitor and adjust its OT systems, which has introduced massive challenges in securing them.[7] Approaches known from regular IT are usually replaced or redesigned to align with the OT environment. OT has different priorities and a different infrastructure to protect when compared with IT; typically IT systems are designed around 'Confidentiality, Integrity, Availability' (i.e. keep information safe and correct before allowing a user to access it) whereas OT systems require 'Realtime control and functionality change flexibility, Availability, Integrity, Confidentiality' to operate effectively (i.e. present the user with information wherever possible and worry about correctness or confidentiality after).
Other challenges affecting the security of OT systems include:
- OT components are often built without basic IT security requirements being factored in, aiming instead at achieving functional goals. These components may be insecure by design and vulnerable to cyber-attacks.
- Vendor dependency: Due to the general lack of knowledge related to industrial automation, most companies are heavily dependent on their OT vendors. This leads to vendor lock-in, eroding the ability to implement security fixes.
- Critical Assets: Because of OT's role in monitoring and controlling critical industrial process, OT systems are very often part of National Critical Infrastructure. As such they may require enhanced security features as a result.
Critical Infrastructure[edit]
Operational Technology is widely used in refineries, power plants, nuclear plants, etc. and as such has become a common, crucial element of critical infrastructure systems. Depending on the country there are increasing legal obligations for Critical Infrastructure operators with regards to the implementation of OT systems. In addition certainly since 2000, 100,000's of buildings have had IoT building management, automation and smart lighting control solutions fitted [8] These solutions have either no proper security or very inadequate security capabilities either designed in or applied.[9] This has recently led to bad actors exploiting such solutions' vulnerabilities with ransomware attacks causing system lock outs, operational failures exposing businesses operating in such buildings to the immense risks to health and safety, operations, brand reputation and financial damage [10]
Governance[edit]
There is a strong focus put on subjects like IT/OT cooperation or IT/OT alignment [11] in the modern industrial setting. It is crucial for the companies to build close cooperation between IT and OT departments, resulting in increased effectiveness in many areas of OT and IT systems alike (such as change management, incident management and security standards) [12][13]
A typical restriction is the refusal to allow OT systems to perform safety functions (particularly in the nuclear environment), instead relying on hard-wired control systems to perform such functions; this decision stems from the widely recognized issue with substantiating software (e.g. code may perform marginally differently once compiled). The Stuxnet malware is one example of this, highlighting the potential for disaster should a safety system become infected with malware (whether targeted at that system or accidentally infected).
Sectors[edit]
Operational Technology is utilized in many sectors and environments, such as:
- Oil & Gas
- Power and Utilities
- Chemicals manufacturing
- Water treatment
- Waste management
- Transportation
- Scientific experimentation
- Critical Manufacturing
- Building Management and Automation
- Building lighting controls and automation
External links[edit]
- Gartner e.g. https://www.gartner.com/smarterwithgartner/when-it-and-operational-technology-converge
- GlobalSign Blog, e.g. https://www.globalsign.com/en/blog/it-vs-ot-industrial-internet/
- NIST e.g. https://www.nist.gov/itl/upload/preliminary-cybersecurity-framework.pdf
- ISA (International Society of Automation) e.g. https://www.isa.org/belgium/standards-publications/ISA99/
- ENISA e.g. https://www.enisa.europa.eu/activities/Resilience-and-CIIP/critical-infrastructure-and-services/scada-industrial-control-systems/maturity-levels or https://www.enisa.europa.eu/activities/Resilience-and-CIIP/critical-infrastructure-and-services/scada-industrial-control-systems/maturity-levels/at_download/fullReport
References[edit]
- ^https://www.gartner.com/it-glossary/operational-technology-ot 'Gartner IT Glossary > Operational Technology'
- ^Steenstrup, Sumic, Spiers, Williams. 'IT and OT Interaction Gives Rise to New Governance'. Gartner.CS1 maint: multiple names: authors list (link)
- ^'The IoT Convergence: How IT and OT Can Work Together to Secure the Internet of Things'.
- ^Steenstrup, Kristian. 'The Strategy, Value and Risk of IT/OT Convergence'.
- ^Koronios, Haider, Steenstrup. 'Information and Operational Technologies Nexus for Asset Lifecycle Management'.CS1 maint: multiple names: authors list (link)
- ^'Industrial Giants Still Struggling To Find New Digital Business Models'.
- ^'IT/OT Convergence: Bridging the Divide'(PDF).
- ^'Internet of Things Forecast Database'.
- ^'Smart Yet Flawed: IoT Device Vulnerabilities Explained'.
- ^'The 5 Worst Examples of IoT Hacking and Vulnerabilities in Recorded History'.
- ^'Gartner Glossary: IT/ OT Alignment'.
- ^'5 TIPS TO IMPROVE IT/OT ALIGNMENT'.
- ^'Mind the Gap - A Roadmap to IT/OT Alignment'.
Dec 21, 2020 • Filed to: Windows Computer Solutions • Proven solutions
HDMI is an excellent option when you want a high-quality output. But several users have reported an issue where HDMI simply doesn't work with your Windows 10 system. There can be many reasons for it. But you can follow the below-mentioned methods in terms of fixing the HDMI not working error.
Part 1: Why is My HDMI not Working on Windows 10?
There can be several factors behind the failure of your HDMI cable or HDMI port. If your HDMI is not working properly with your Windows 10 system, then it might be a hardware issue, graphic driver issue, device's display configuration issue, or any other issue.
There are several ways in which an HDMI error can play out;
- HDMI not working at all on your HDMI device.
- The audio or video not working through your HDMI connection.
- The content playing through your HDMI isn't playing properly.
Part 2: What to Do If HDMI Port not Working on Laptop?
You can try several fixes if your HDMI port not working on laptops. As various factors might cause the problem to your HDMI, thus, there are respective methods to fix all those issues separately. Try each method one by one and see which one proves to be helpful for you.
1. Check your Hardware
The issue of your HDMI port not working on your Windows Laptop can be simply a hardware failure. Damaged or corrupted hardware can easily cause an error in your HDMI experience. Thus, before we move onto some other solutions to fix the HDMI that's not working on your Windows, you should check your hardware.
- Check your HDMI cable. Your HDMI cable needs not to be damaged and properly connected with your Windows laptop and HDMI device. Check if your HDMI cable is compatible with your System or another HDMI device.
- Check your HDMI ports. You need to check if the HDMI ports of your Windows System and other HDMI device are in good and working condition. Damaged or corrupted HDMI ports might cause the error that restricts your HDMI to work on the Windows system properly.
2. Restart and Reconnect your Devices
Most of the time the HDMI not working issue is not due to any problem but simply improper bootup of devices. Yes, not properly booting up your Laptop or your HDMI device can result in the error where you might find your HDMI not working.
Thus, you are recommended to restart your systems and re-plug your devices with HDMI. You can use the below-elaborated pattern to make sure you do everything right:
First turn on your HDMI device i.e. TV, speaker, etc., and only then turn on your Windows PC or Laptop. Once you have turned on all the devices, you need to turn off your HDMI devices again while keeping your Widows System On. Now unplug all the HDMI connections, and then plug them again with your HDMI device and your Windows PC. This will refresh your HDMI connection and might fix the issue where your HDMI port is not working.
3. Set your HDMI Device as the Default Device
If both the above-elaborated methods didn't fix your problem of HDMI not working on Windows 10, then you should try to check if your HDMI device is set as the default of not. Yes, most of the time your HDMI device won't work if it's not set as a default device for your Windows system. Thus, you need to set the HDMI device you want to use as a default device.
Step 1. Once you are on the Home screen on your Windows 10 Laptop or PC, go to the 'Volume icon' on Task Bar and Right-click on it.
Step 2. You will be taken to a mini 'Sound' window. Once you are on the mini window, go to the 'Playback' tab. Under the Playback tab, you will see all your playback devices listed, including your system's integrated playback speakers and HDMI devices.
Step 3. Select the HDMI device you want to set as default. Now, click on 'Set Default' and then 'Ok'. This will set your HDMI output device as the default HDMI device for your Windows 10 System.
4. Remove Recently Installed Software
Sometimes a recently installed program or software can also disrupt the HDMI connection. Yes, if you have recently installed a program, the program may be buggy, or simply incompatible with your system. Thus, installing that program might fix the issue of HDMI not working on Windows 10 PC.
Step 1. From the Home-screen of your Windows 10 System, go to the Search-panel on the Task Bar, and search for 'Control Panel'. Click on the Control Panel in the search result to go to the Control Panel window.
Step 2. On the Control Panel window look for the 'Programs' option. Click on the 'Uninstall a Program' option under the 'Programs'. This will take you to the list of all the programs on your Windows 10 system that you can uninstall.
Step 3. Now, under 'Uninstall or Change a Program' on the 'Programs and Features' window, look for the recently installed software. Right-click on the recently installed software and click on the 'Uninstall' option that pops up.
Step 4. Once you have uninstalled all the recently installed software, exit the Programs and Features windows and Restart your computer to see if the problem of the HDMI port not working on the laptop is fixed or not.
5. Configure your Computer's Display Settings
If the display setting of your Windows PC isn't properly configured, then the content might fail to display on your HDMI device. Thus, try to configure the Display settings of your Windows system.
Once you are at the Home-screen of the Windows 10 PC on which your HDMI cable is not working, you need to use the shortcut key 'Windows key + P'. This will bring a panel of computer display settings in front of you. You are required to choose a Display setting among the listed once to configure your Device's display correctly.
The Display settings you'll see on the panel:
- PC Screen Only – Choose this option for a normal display condition. When you want your content to be displayed only your 1st Computer Display.
- Duplicate – Choose this option to Duplicate the display. When you want to display the same content on both the connected monitors, the one that's your 1st Display monitor, and then another that's connected via HDMI or other sources.
- Extended – Choose this option to extend the content between two or more Displays. When you want to display the one content extending from your 1st Display to all other connected Display via HDMI or other sources.
- Second Screen Only – Choose this option to display content on the Secondary Display. When you want to display the content only on the Secondary monitor and not the 1st monitor.
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Choose the Display setting in a manner you want your Display to be, and see if it fixes the issue of HDMI not working on Windows 10.
6. Update or Reinstall your Graphics Driver
Graphic Drivers play a major role in displaying content. Any issue with the graphic drivers can mean the failure of the system in communicating the data between the HDMI device and your System. Thus, update or reinstall your Graphic drivers to fix the problem.
Step 1. From the Home-screen of your Windows 10 laptop, go to the search panel on the Task Bar and search for 'Device Manager'. Go on the 'Device Manager' option with a thumbnail in the search results.
Step 2. On the Device Manager window, you'll see all the output, input, and other necessary devices and components of your Windows 10 System listed.
Step 3. To update the Graphics Drivers, go to the 'Display Adapters' option and click on the Arrow to see your Graphics Device. Now, right-click on your Graphics Device and proceed with the 'Update Drivers' option you'll see. Follow the on-screen instructions to successfully update the Graphic drivers.
Note!
- In some cases, you might already have up-to-date Graphic drivers. In that case, you might try other options like Disable and Reenable the Drivers, or Uninstall and Reinstall the graphic drivers to fix the issue of HDMI cable not working on laptops.
- If updating the graphic drivers of your display doesn't fix the issue of HDMI not working. Then you might follow the same process to update other drivers. You can try to update the Audio Input and Output Drivers, USB Drivers, Monitor Drivers, etc. Thus, if the issue is in another component than the Graphic card, it will be fixed with the driver update.
You can also check the attached video to find out detailed instructions on How to Fix HDMI Not Working on Laptop Windows 10.
Part 3: Recover Lost Data from Windows with Recoverit
Whenever a problem occurs in your System and you try to fix it, the biggest concern that remains is the possible loss of your data. Yes, any issue with your system can damage your data. Your important data once lost can be permanently lost if not recovered immediately. So, if such a case occurs, you need to take help from the Recoverit Data Recovery tool as quickly as possible.
Recoverit tool being one of the most powerful and feature-rich recovery tools in the market can help you to recover all of your lost data. With the help of Recoverit, all it takes is three steps and you'll have all of your lost data recovered in its original quality.
Recoverit Data Recovery - The Best File Recovery Software
- Recovers your lost data in its 100% original form and quality.
- Recovers over 1000+ File Types.
- Recovers data from a crashed Windows through Bootable Recovery feature.
- Recovers data from all kinds of Storage Devices.
User guide:
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Step 1. Select Drive
Launch the Recoverit tool and wait for the 'Drive Selection Window' to appear. On the Drive selection window, from all the listed Drives and Location. Choose a Drive or Location from where you want to recover your lost data. Click 'Start'.
Step 2. Scanning
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During the scanning, the scanned and recoverable files will start getting listed on a window that you'll be directed to. You can filter, pause & resume, or configure your scanning with the help of various options available on the window.
Step 3. Recovery
Once the scanning is finished, you can recover all the listed files by selecting all. Or, you can use the search panel to search through the files and preview the files to find which ones you want to recover. After file selection, click on the 'Recover' button, and then choose the desired secure location on your PC for the restoration of recovered files.
Following these three easy steps can recover all of your important data from any device or System.
Conclusion:
Don't panic if your HDMI is not working with your laptop. You can simply try all the methods in this article one by one, and fix the HDMI not working issue. Keep trying the next method if one doesn't work, and we are sure you'll be able to fix your HDMI.
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