How To Connect Two Monitors To One Computer [DisplayPort To HDMI]
Hey buddy, after a long time here is another video. As you may know, I recently built a new computer. I required a dual monitor setup, one monitor for recording my videos and one monitor for read my script. I did not have a budget to buy a separate powerful graphics card so I bought a processor which has good graphics. I bought the Intel i3-7100 CPU with Intel HD 630 Graphics, with the motherboard Asus H270 Pro.

According to my graphics card, I can connect upto 4 monitors but my motherboard has only three ports, HDMI, DisplayPort and a DVI port, so I decided to buy a DisplayPort to HDMI converter cable.

And here is the unboxing of it. So, as you can see on the package it came from China. It is the cheapest cable I could find on Amazon, it's length is 10 feet or 3 meters and costed me around 1,600 rupees which is 24 dollars. Here is the product page from where I bought the cable.

As you can see all the sizes available here are DisplayPort to HDMI cables, but the 35 feet one is a DVI to HDMI cable. Another strange thing is that, the 3 feet cable costs around 540 rupees and the 6 feet one costs around 1000 rupees, but how come 10 feet one is only 700 rupees. I mean the 6 feet cable is more expensive than the 10 feet one. If you observe more carefully, the same pattern goes for 15 feet and 25 feet. I bought the 10 feet cable, because 3 or 6 feet one would be shorter for me, and 10 feet looked like a fair price.

I ordered it on March 1st 2018 and it was delivered to me on 3rd March.

Okay now enough of talking, let's unbox the cable. Welcome to the first unboxing on this channel. Please tell me how can I improve my unboxing in the comments below. Now, as I said that this is my first unboxing and had no experience before, it was hard to cut the cover, so I am speeding the footage.

Here is the cable, if you can see it the ports of the cable are protected with a small cap, let me remove it and show you the HDMI port. Now, this is the DisplayPort, let me also remove the cap. Here is the cable unboxed. Now, just for an idea on how long is the cable, here I have hung it to a nail on the wall. As you can see, the cable is pretty long and covers most of my wall, if I hang the cable from the top, it will surely cover the entire wall.


Now, let's connect the DisplayPort to my PC. Here is a quick glimpse the DisplayPort connector, the notch here should match the notch on your PC.

Let me insert it. You need to insert it firmly so, it won't fall out. Now, let's connect the HDMI side to my second screen.

The is just like a normal HDMI cable, so just connect it as you connect your HDMI cable. After you have connected both the sides, let us turn on the PC to see if it works. The second screen which I connected was automatically setup as the default monitor so I changed it later. Also remember that this cable can only work if use it to convert DisplayPort to HDMI. You cannot send any signal from the HDMI side, it won't work the reverse.

The links for United States and India are below so, you can directly purchase the cable, without searching or buying the wrong one. This way you need not buy a graphics card with two or more HDMI sockets and can use your integrated graphics to connect two monitors.

Of course, if your motherboard has two HDMI sockets then you are lucky. So, that was it for this video. Please hit the like button if you liked this and subscribe to my channel for more videos like this one.

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In System Settings -> Display and Monitor, you should be able to configure the Scale for each monitor.

Checking the changelog for Plasma 5.11, it looks like it should take into account each monitor's physical size and scale appropriately, insofar as such information is available. At the very least you should be able to specify the scaling in the Display and Monitor settings.

Unfortunately the scale setting affects both displays and it's not possible to specify each individually.

Note using xrandr to scale is another way (so KDE is scaled once and adjusted for each monitor) e.g.

xrandr --output HDMI1 --scale 2x2 --fb 7980x2160 --pos 3840x0 runs into the follow bug (mouse pointer range limited) which I believe is patched:
https://bugs.launchpad.net/ubuntu/+sour ... ug/1580123

This seems a more sensible way as fonts, pointers and so on only need specifying once for all displays.

On a similar note with having to change several different things (position, scale, fonts, icons, pointer...) to set monitors up correctly [probably should be out of the box, but perhaps not easy in that case to please everyone] maybe there should be some kind of wizard to set up monitors and correct sizing/scaling rather than having to go find each thing in turn?

Note also that scaling is ignored on the login screen from boot (KDE or OpenSuse issue?) so a trip to Specsavers may be needed to log in for some. If user defaults are used to scale the screen (hence why it's like that) perhaps there should be some global scale settings which the user overrides once they are logged in?

I may be misinterpreting the release notes for Plasma 5.11. It does at least show two different monitors with two different DPIs. The main announcement claims this is specifically for Wayland, while the changelog seems to imply that it may apply to either Wayland or X. Admittedly I haven't tried it with multiple monitors myself yet.

As for the scale used for the login screen, that is handled by SDDM, which is used by Plasma, LxQt and Liri. Looks like SDDM only has a single flag for enabling/disabling Hi-DPI scaling.

airdrik wrote:As for the scale used for the login screen, that is handled by SDDM, which is used by Plasma, LxQt and Liri. Looks like SDDM only has a single flag for enabling/disabling Hi-DPI scaling.

Nope, say you want to use 120 dpi on login, you can add it to your /etc/sddm.conf

Code: Select all

[X11]
ServerArguments=-nolisten tcp -dpi 120