Five aspects to know why you do not get the desired image quality through HDMI when connecting a computer or console

With media players and streaming dongles we can perform many tasks, whether it’s enjoying movies or series, watching TV, or even playing games. Nevertheless, connecting a computer to a TV via HDMI is still really useful, expanding our possibilities. However, there are times when the signal is not transmitted properly.

In this article we will show you some cases that explain why we cannot obtain optimal image quality when we connect our computer to the TV through HDMI.

Be careful with the version of the cable

The HDMI standard has evolved quite a bit over the years. However, even though the connector type remains the same, we have to take into account the version of this interface that incorporates.


The fact that the signal does not take full advantage of the benefits of the television or our equipment it may be that the version of the HDMI cable is lower than the one needed. The latest version to date is HDMI 2.1, which allows signals of up to 120 Hz frequency to be transferred at 4K resolution. In addition, it supports eARC connectionsit benefits from the VRR and with it we can also opt for ALLM modes on the television.

While having an HDMI 2.1 cable might solve our problems, we must take into account the limitations of our television and equipment. In this way, if we have a television that only reaches frequencies of up to 60 Hz and is 4K, a cable that is compatible with version 2.0 will suffice.

We must review the configuration of our equipment

Whether it’s a computer, game console or player, it is advisable to take a look at the image and screen settings to know if the signal is being transferred to the maximum possible. If we have a Windows computer we can right click on the desktop and access the ‘Screen settings’. If, on the other hand, we are on macOS, select the menu Apple > System Preferences and then click screens.

Display Settings

Linux differs between its various distributions. Sometimes we will have to use the Console, but in distros like Ubuntu, we can access the panel settings menu via System Settings> Devices> Monitors. If we want to do it from the Terminal, just open it and write the following command: “xrandr –size 1920 x 1080” (we can change those values ​​to whatever we want).

In the mentioned menus we can change both resolution, scale and refresh rate of the panel. Depending on our TV and equipment, the optimal thing would be to choose the maximum allowed.

The TV does not support the desired resolution or refresh rate

Another possibility may be that the TV does not support the desired resolution and frequency. If this ends up being the case, we can’t do anything but get another TV if we don’t settle for it.

In Xataka we have spoken several times about the aspects to take into account when purchasing a television, as well as calibrate it to get the most out of it.

Our computer cannot achieve the desired resolution or refresh rate

If we have tried all of the above, perhaps it is that our computer, player or console does not support higher resolutions and frequencies. In this sense, we cannot do much more than connect a device that does support the desired image quality.

If what we are trying to connect a computer to the television, it may be that the graphics card that it incorporates does not support said resolution or refresh rate. This can be because the GPU integrated into the processor is not powerful enough to transfer the required bandwidth in the signal. As in the previous cases, there is little more we can do on our part.

The computer has power to spare, but the HDMI port is connected to the integrated graphics

If we are 100% sure that our equipment can meet the demands of the bandwidth required to transfer the desired signal, another case may be that the HDMI port of our laptop is connected to the integrated GPU of the processor and not to the dedicated graphics cardwhich is what gives our team the power to perform the most demanding tasks.


To be sure of this, what we have to look for is the exact model of our Intel or AMD processor and in its technical specifications see at what maximum resolution and refresh rate its integrated graphics works if we use an HDMI cable. In case it is not what you want, we will have to deal with connecting the computer in another way.

If the television is compatible with DisplayPort, we can choose to connect the PC through this cable, although it is something uncommon in televisions. Nevertheless, Another option is to use the USB-C port of our computer with a USB-C to HDMI adapter.. This can be a good alternative for signals with higher bandwidth, although we will have to see what kind of protocols are compatible with our USB-C connector, since there are some that are only used to charge devices and not to transfer audio signals. -video.

Source: Xataka Smart Home by

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