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Dual monitor setup in Linux has never been easier. While methods such as the xinerama extension sometimes drive people insane, using RandR (Resize and Rotate) is quick and painless. This will allow you to use both monitors as one big screen instead of two identical ones (cloning). Follow these simple steps to get started.

Note: This HOWTO assumes that you are using the opensource drivers for your video card (ATI or Intel). Nvidia and AMD proprietary drivers come with their dual screen components.

1. Setup your chúng tôi configuration file:

Edit it as root:

gksudo gedit







(in GNOME) or

kdesudo kate







(in KDE)

2. Create a subsection under the “Screen” section with the following.








#the resolutions of your monitors





Xrandr will function without these chúng tôi lines, but it will limit the size of your desktop.

For my computer, I am using two monitors with 1440×900 resolution. If you have a different resolution, put those resolutions under “modes” and then combine the width of both for “virtual”. In other words, if you have a 1280×800 monitor, it would be “Virtual 2560 800”.

3. Save your changes, exit and restart X.

4. Now, you can setup your dual screens however you like. First find out some information about the screens. Open a terminal emulator and type:



It should tell you the name of each screen and its current resolution. On my computer, my screens are “DVI-0” and “DVI-1”.

5. To make one large desktop including both screens, run this command:











DVI-0 is on the right, and DVI-1 is on the left.

6. Create a script called “startxrandr” to run this command whenever you want.












7. Make sure to make the script executable


a+x startxrandr

That is all it takes. You can play around with it and see all of xrandr’s commands by running “xrandr -help”.


There are also a few GUI applications that allow you to control xrandr. Check with your Linux distribution.

You can set xrandr to run when your display manager or desktop environment starts. See the its documentation for startup applications.

KDE and GNOME will automatically configure two screens correctly so that maximizing a window will only fill one of the screens. Some desktop environments do not yet have support for this. You will have to test the one you use. You should have no problems with Compiz.

You can have two monitors with different resolutions, which is useful if you are using a laptop connected to a larger monitor.

In KDE, each screen will automatically be a different activity, and you can apply different widgets on each.

Some applications, especially those that rely on SDL (like many Linux games), may not honor your xrandr settings. If you are lucky, it will just clone the game on both screens. For applications like Boxee, you will need to set the environment variable before starting it:





Tavis J. Hampton

Tavis J. Hampton is a freelance writer from Indianapolis. He is an avid user of free and open source software and strongly believes that software and knowledge should be free and accessible to all people. He enjoys reading, writing, teaching, spending time with his family, and playing with gadgets.

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How To Prevent Eye Strain From Monitors

We often spend a lot of our time looking at monitors, but how often do we consider the damage they may be doing to our eyes? Thankfully, there are plenty of ways to prevent eye strain, and some of them are just little habits you can implement into your daily life!

1. Perform Eye Exercises

This may sound complicated, but eye exercises are anything but! Every twenty minutes of looking at a monitor, take twenty seconds to look at something that’s at least twenty feet away. Eye doctors name this the “20-20-20” method. It breaks up the stress that’s put on your eyes from looking at a monitor.

If there’s nothing in your immediate line of sight that’s 20 feet away, use this time to walk about as well. Sitting down while working all day can also be unhealthy, so this gives you an excuse to take a walk and look somewhere else for a moment.

2. Make Your Monitor’s Light Easier on the Eyes

You can adjust the light being emitted from your monitor to help reduce eye strain. Windows 10 has a Night Light mode, and the program chúng tôi is able to do a similar job.

Some monitors even have an additional setting that makes the light easier on a user’s eyes. For example, Philips uses Low Blue mode, Benq has Low Blue Light mode, and HP has Blue Light filter. All of these soften the brightness of the light at the monitor level.

3. Wear Glasses that Reduce the Blue Light

If you wear glasses while you type, why not enhance them with the ability to prevent eye strain from monitors? There are plenty of models of glasses out there that use a special lens that filters the blue light, keeping your eyes safe from the glare of the monitor.

4. Adjust Monitor Distance

Keep your monitor between 40 to 76 centimeters from your eyes – that’s around 16 to 30 inches. Ensure the monitor is around the same level as your eyes and is angled slightly away from you. This will help reduce the strain your eyes undergo when making out the text on the screen.

5. Blink More!

This is easier said than done when you’re watching your favorite TV shows or in a tense moment during a gaming session, but it has to be done. We have a tendency to stare at monitors without blinking, and it’s a good idea to manually perform a few extra ones to ensure your eyes are getting the moisture they need.

6. Reduce Any Glare on Your Monitor

You wouldn’t stare at the sun or a bright light for more than a few seconds – so why stare at its reflection for extended periods of time? If you find there’s a light source that’s reflecting off of your monitor’s screen, try to reduce or eliminate it. Not only does the extra light put redundant strain on your eyes, but it also makes things harder to read, causing you to focus more.

An Eye for an Eye Strain

Many of us interact with monitors every day, but only a few think about how it affects their eyes. Now you know some of the ways that staring at a screen can harm your eyes and how to avert the strain.

Have you ever suffered from eye strain from using a monitor too much? How did you solve the problem? Let us know below.

Simon Batt

Simon Batt is a Computer Science graduate with a passion for cybersecurity.

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How To Set Up Multiple Monitors In Macos

Mac users who do serious work or just like to keep an eye on emails, or social media, while on the job need a second display or even multiple monitors.

It’s easy to set up multiple monitors in macOS, but some details can trip you up. Here’s what you need to know and how to get your Mac “battle station” up and running.

Table of Contents

Requirements For Multiple Displays in macOS

Before you can set up multiple monitors with your Mac, you must have a few things ready. Here’s the checklist:

You will need at least two monitors to set up a multiple monitor configuration. Your Mac should have at least one HDMI, DisplayPort, mini DisplayPort, Thunderbolt, or DVI port to connect an additional monitor.

Depending on the connectors available on your Mac and your monitors, you may need adapters or cables to connect the monitors to your Mac. For example, if your Mac has a Thunderbolt port and your monitor has an HDMI port, you will need a Thunderbolt to HDMI cable or adapter.

You will need to run at least macOS Mavericks (10.9) to use multiple monitors with your Mac. Updating macOS to the latest version supported by your computer is a good idea.

You will need enough space on your desk to accommodate all of your monitors. Make sure you have enough room to place the monitors side by side or in a configuration that works for you.

Most monitors have VESA mounts, so you can get creative with monitor mounts. Monitor mounts are affordable and upgrade mainstream monitors with swivel, tilt, and rotation. Not to mention, they’re a great way to keep your desk clear for a spacious workspace.

My Mac Only Has Thunderbolt Ports!

If your Mac has only Thunderbolt 3 or Thunderbolt 4 ports and you want to connect an additional monitor, you will need to use a Thunderbolt (or USB-C) to HDMI or DisplayPort adapter or cable. Most people in this situation opt to use a Thunderbolt or USB-C docking port, which comes with display connections and multiple connections for other peripherals.

If your Mac is an older Intel model with no Thunderbolt 3 ports, it may have HDMI, DisplayPort, DVI, or VGA ports instead. You can use a cable or adapter compatible with your Mac’s and your monitor’s ports to connect the additional monitor.

For example, if your Mac has a DVI port and your monitor has an HDMI port, you can use a DVI to HDMI adapter or cable to connect the monitor to your Mac.

How to Connect Additional Monitors to Your Mac

Now that we’re confident you have everything needed to make a multi-monitor Mac setup work, here’s how to connect additional monitors to your Mac:

Check the back of your Mac or sides of your MacBook to find out which ports are available. Your Mac may have HDMI, DisplayPort, Thunderbolt, DVI, or VGA ports.

Check the back of your monitors to find out which ports are available. Your monitors may have HDMI, DisplayPort, DVI, or VGA ports.

Based on the ports available on your Mac and your monitors, choose the appropriate cables or adapters to connect the monitors to your Mac. For example, if your Mac has a Thunderbolt port and your monitor has an HDMI port, you will need a Thunderbolt to HDMI adapter or cable.

Using the cables or adapters you have chosen, connect the monitors to your Mac. Make sure to connect the cables to the appropriate ports on your Mac and your monitors.

Once the monitors are connected to your Mac, turn on the monitors. In most cases, your Mac will automatically detect the screens and try to configure them in the best way. If that happens, you’re good to go!

If your monitor doesn’t start working immediately, we can try forcing macOS to detect it:

Hold the


button, and

Detect Displays

should appear in place of Night Shift. Unfortunately, we can’t screenshot this because of how the Option toggle works, but it appears in this location.

Use the

Detect Displays

button and then see whether your display is recognized. It should appear in the display diagram at the top of the window.

If your monitor still isn’t detected, try restarting your Mac with everything connected, or try connecting everything after a reboot.

Adjusting Display Settings in macOS for Multiple Monitors

Once your displays are detected and active, macOS will try and arrange them in a sensible order, but you’ll probably want to arrange them to match their physical configuration exactly:




Use the mouse pointer to drag the pictures representing your monitors into the correct arrangement.

To adjust the display settings for external monitors in macOS, follow these steps:

Select the


you want to modify.

Now that the display is selected, we can change different display options for that monitor.

Under Use As, you can set whether a given monitor is the primary display or an extended monitor. This is useful when you have an external monitor connected to a MacBook and want the external monitor to be the primary screen while it’s connected.

In this section, you can also mirror displays. Remember that if the two monitors have different resolutions or aspect ratios, you’ll likely end up with ugly scaling or black bars on one of the screens.

Below Use As, you’ll see a list of resolutions. It’s generally best to select the resolution that matches the native resolution of your screen.

If you use the Show all resolutions toggle, you’ll see more options, but some may not work with your monitor resulting in a black screen until the confirmation period runs out.

The Color profile section lets you select a color profile for your monitor. Usually, this defaults to the color tuning for that specific screen model. However, you can also pick another standard depending on the work you want to do. For example, many professionals working with image editing will choose the Adobe color space to get consistent color results.

The refresh rate lets you adjust how many times per second the monitor refreshes the image. In general, it’s a good idea to pick the highest available number, assuming that your monitor has correctly reported which refresh rates it accepts.

High Dynamic Range lets you activate HDR on monitors that support it. If you have HDR content that you want to play or edit, you should toggle this on for that display. However, SDR content tends to look unpleasant with HDR on, so only turn this on when you’re actually using HDR content.

Finally, you can adjust the rotation of the screen. If you have a screen that can rotate, this is useful if you want to turn it upside down or use it in portrait mode.

Once you’ve adjusted the settings for each screen to your liking, you can close the window. Settings will remain the same each time you connect these displays until you change something.

How Many External Displays Can You Attach?

While most people are happy to have a dual-monitor setup, plenty of folks are embracing the “battle station” approach and setting up numerous monitors to make their workflow easier. Before you go out and buy a pile of monitors, you should know there’s a limit to how many external displays you can connect to your Mac.

Head to Apple’s Tech Specs website, select the

Search Tech Specs

bar, and paste your Mac’s serial number into the provided space. Then select



Select your model of Mac in the results.

Under the specs for your Mac you’ll find the maximum number of supported displays for that model.

Some older Macs may not even support dual displays, so it’s important to check before you spend any money!

Using Your iPad As An External Display

While (excluding the Mac Mini) M1 and M2 Macs officially only support one external display, there is one way to get a third display. The latest versions of macOS and iPadOS support SideCar, allowing your iPad to work as an extended display and not count toward the display limit.

There are a few requirements:

A compatible Mac and iPad.

At least macOS Catalina and iPadOS 13.

An (optional) cable to connect your Mac and iPad.

Both devices must have Bluetooth turned on.

Both devices must be signed in to the same Apple ID.

As long as the requirements are met, you should see your iPad as an option under Displays when you select the + dropdown menu.

Just choose to Extend or mirror to the iPad, and after a few seconds, the iPad should show your macOS desktop. By and large, you can now treat the iPad the same as any other external display.

Need Even More Monitors? Try DisplayLink!

The Plugable Dock allows for a Dual-monitor setup even with M1 or M2 MacBooks

DisplayLink is a technology that allows you to connect additional monitors to your Mac using a USB or Thunderbolt connection. If you want to use DisplayLink with your M1 chip-based Mac to exceed the monitor limit, you will need to use a DisplayLink-powered docking station or adapter.

To use the additional monitors with your M1 chip-based Mac, you will need to install the DisplayLink software on your Mac. You can download the software from the DisplayLink website.

Vivo V17 Pro With 32Mp Dual Pop

Vivo was the first phone maker to debut a pop-up selfie camera with the Vivo NEX last year. It then brought the same bezel-less experience, with a pop-up camera, at a mid-range price tag with the Vivo V15 Pro earlier in 2023. Well, Vivo is carrying forward its legacy with the new Vivo V17 Pro, which was unveiled at a launch event in India as the world’s first smartphone with a dual pop-up selfie camera module.

Vivo V17 Pro: Specs and Features

The Vivo V17 Pro boasts a stunning glass sandwich construction, with gradients inspired from mother nature and Gorilla Glass 6 protection on the rear. It features a 6.44-inch Full-HD+ E3 Super AMOLED display, which covers 100% DCI-P3 color spectrum, has Schott Xensation UP protection up-front, and its brightness can go as high as 500 nits.

The Vivo V17 Pro’s display has a taller 20:9 aspect ratio, a 91.65% screen-to-body ratio, and 1080×2440 pixels resolution. The E3 Super AMOLED display is more energy efficient than the E2 AMOLED screen, about 8%, which is excellent. The fingerprint sensor has been baked under the display and we expect it to be quite snappy, all thanks to Vivo’s latest innovations.

Under the hood, Vivo V17 Pro is powered by the Snapdragon 675 chipset, which is obviously the same chipset found in many popular budget phones like the Redmi Note 7 Pro. This is coupled with 8GB of RAM and 128GB of storage, expandable up to 256GB via microSD card. The smartphone runs Android 9 Pie-based FunTouchOS 9, which is loaded with a plethora of AI features.

In the camera department, you can see in the image above that the Vivo V17 Pro has a rectangular quad-camera housing at the center on the rear. It features a 48MP (f/1.8) primary sensor, coupled with a 13MP telephoto lens with 2x optical zoom, an 8MP ultra-wide-angle lens with 120-degree field-of-view (also supports super macro at a 2.5cm focal length), and finally, a 2MP depth sensor.

The highlight of the Vivo V17 Pro, however, has to be the dual pop-up selfie camera. It’s the world’s first phone with dual cameras, which includes a 32MP primary sensor and an 8MP ultra-wide lens, in a pop-up module. It expands your usual selfies into 105-degrees group photos – a feature that should be useful for college students and joint families.

Vivo V17 Pro comes equipped with a 4,100mAh battery, with support for Vivo’s 18W dual-engine fast-charging technology. There’s a USB-C charging port, which is great as compared to a microUSB port that Vivo has stuck with for a long time. All the essential connectivity options such as Wi-Fi 802.11ac, Bluetooth 5.0, and more in tow as well.

Price and Availability

Vivo V17 Pro has been priced starting at Rs 29,990 for the sole 8GB+128GB variant. The smartphone comes in two stunning color variants namely Midnight Ocean and Glacier Ice, with sales kicking off 27th September on Flipkart. The pre-bookings for this hexa-camera beast will open today, so if you’re someone who loves pop-up cameras, well, this could be your dream smartphone.

Oneplus Pay Features And How To Setup

Online payments have gained popularity all over the world, the reason being that online payments are safer and cheaper. It is evident that the world has become a global village, and hence one can send money to any part of the world via online payments. Some online payment options include Google Pay, PayPal, Skrill, Visa, Mastercards, but to mention a few.

Another payment option is OnePlus Pay, which is currently supported by the  OnePlus 7T series. However, other phone models will be given access to these payment options at a later date which is not specified. We look at OnePlus Pay features and how to set it up.

What is OnePlus Pay?

OnePlus Pay is an online payment method that is new in the market but gaining popularity at a very high rate. Android phone users use Google Pay to facilitate ease of payment. The Apple company was not left behind since it also came up with Apple Pay. OnePlus Pay is a mobile payment service that is compatible with OnePlus mobile phones.

This credible payment method is expected to be released in April 2023. China will be the first country to benefit from this payment option. Currently, the payment option has gained U.S. market trust. The OnePlus Pay method will be extended to countries like India, where there are a lot of OnePlus mobile users.

At the initial stages, only three Chinese bank cards will be supported, which include: Guangfa, SPDB and the Minsheng banks. As time goes, more bank cards will be supported. It is notable that Google Pay also started with a low number of banks but added more as time went by.

OnePlus Pay Features

The OnePlus Pay payment method has fantastic features that make it outstanding. Some of these features include:

It has a user-friendly interface making the interaction between the user and the application easy.

It is faster- The OnePlus Pay method is a swift payment option compared to other payment options which take Days to process your payments.

OnePlus Pay supports NFC (Near Field Communications), which allows convenient payment of various goods and services.

This payment option is much safer compared to other options that can easily be hacked into.

Once fully launched, this payment option will be very reliable and convenient among its users.

It is supporting a variety of applications that require online payment.

A user guide to facilitate ease of the application.

How To Setup OnePlus Pay on OnePlus 7T series

As mentioned earlier, this payment option is only compatible with the OnePlus 7T series at the moment. We will look at how to set-up the payment option on your mobile device.

Proceed to include your desired bank card from the bank options given

Set-up the card to make it active.

Select your desired transaction authorization method. This may be a PIN, face lock or even a fingerprint lock.

Mostly, the OnePlus Pay supports the face lock or fingerprint lock authorization methods since it is much safer compared to the PIN authorization mode.

It adds up to use OnePlus Pay

The user gets to enjoy a lot of features provided by the OnePlus Pay method. It is a very safe way of transacting payments, and it is a quicker method compared to previous payment options. One can link his/her desired bank card to the OnePlus Pay option to facilitate ease of transactions.

You get to enjoy a user-friendly interface that is easy to use with the OnePlus Pay. Try out the OnePlus Pay, and you will get a fantastic online payment experience.

How To Setup And Use Quick Assist In Windows 11

So, if you are looking for an informational guide on how to use the Quick Assist app in Windows 11, you have come to the right place. In this article, we have discussed every aspect of the Quick Assist app in Windows 11 and how you can use it to provide or receive help on your PC or laptop.

Setup and Use Quick Assist in Windows 11

The Quick Assist app in Windows 11 comes as a system application and is pre-installed on your Windows PC or laptop. However, there are a few things that you must keep in mind before using the Quick Assist application on your Windows 11 device. Check them out listed right below:

While users on the receiving end do not necessarily need a Microsoft Account to use Quick Assist, users who are providing help must have a Microsoft Account to use Quick Assist.

Both the helper and the receiver devices must be connected to an active, stable internet network to establish connections and allow OTA screen sharing and controls.

Both the helper and receiver devices should be updated to the latest Windows 11 version for best results. Otherwise, the app might malfunction and some of the features might not work as expected.

Although it is not necessary, we’d recommend keeping both the helper and the receiver device connected to the power when using the Quick Assist app as screen sharing and remote control over the air could drastically reduce your device’s battery life.

Setup Quick Assist in Windows 11

So, with these in mind, you can check out the following points to set up the Quick Assist app on your Windows 11 PC or laptop and use it to provide or receive help remotely.

2. Now, you can either choose Get Help or Help Someone on the following screen.

3. If you are a technical expert or an IT professional looking to provide technical assistance to another user, choose the Help Someone option.

4. On the following screen, you will need to sign in with your official Microsoft account.

5. Do the needful and you will get a unique security code to share with the user whom you are trying to help using Quick Assist.

Note: This code will automatically expire 10 minutes after the generation. Hence, if the receiver does not connect within the time limit, you will need to generate a new code to connect to the receiver.

7. Now, the receiver needs to Allow screen sharing in the Quick Assist app to allow the helper to access their screen remotely.

8. Once the connection is established, you (the helper) will be able to see the screen and actions of the receiver device in real-time. You will also get a bunch of options at the top menu bar, including Laser Pointer, an Annotation tool, a Request Control button, and more.

9. The receiver device, on the other hand, will see a Quick Assist menu bar at the top with just a few options to Chat, Pause, and Leave the session.

Use Quick Assist in Windows 11

Once you have completed the setup, here is how you can use Quick Assist on your Windows 11 PC.

1. As a helper, you can request to gain control of the receiver device to remotely control it from your PC or laptop via the Quick Assist app.

2. However, the receiver must allow the control on their PC or laptop before the helper can use the feature in Quick Assist.

3. Furthermore, with the latest Windows 11 22H2 update, Microsoft has added a new Laser Pointer feature to allow helpers to highlight or show menus, icons, and other settings on the receiver screen more easily than ever.

4. The helper can even customize the color of the laser pointer in Quick Assist.

6. There is also a Chat feature that users can capitalize to communicate with each other. This feature is available on both the helper and receiver devices using Quick Assist.

8. Once a session ends, you or the user, receiving help, must start a new session with a new unique security code to start a new Quick Assist session in Windows 11.


Is Quick Assist available in Windows 11?

The Quick Assist app comes pre-installed in Windows 11 as well as other Windows versions, except on those devices running on the Windows Server 2008 R2 servers.

Where is Quick Assist available to download?

Although Quick Assist comes pre-installed with Windows 11, it is available as a standalone app on the Microsoft Store since June last year, when Microsoft announced that Quick Assist is no longer a native app in Windows 10 and 11.

Can I use Quick Assist from Windows 10 to Windows 11?

With the latest updates to the Quick Assist app on the Windows platform, users can easily use the Quick Assist app on different Windows builds, including Windows 11 21H2, 22H2, and Windows 10 20H2, 21H1, 21H2, and 22H2. So yes, you can use the Quick Assist app on different Windows builds as long as your device is running the above-mentioned versions.

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