Go looking for those and your problems should be gone. Some HDMI manufacturers will even display that their HDMI cable is made for 4K or even 8K screens. If you have higher resolutions such as 8K, use a 48 Gbps HDMI cable. If you want to be on the save side, buy a faster one such as a 48 Gbps.įor Ultra-wide screens and 4K screens, you should be good using an 18 Gpbs HDMI cable. Usually an 18 Gbps HDMI cable will do the job. You need a high-speed HDMI cable to do the job. You can solve this problem buy buying a more expensive HDMI cable that is able to transfer more Gigabytes per Second (Gpbs). A data transfer error occurs, your HDMI port communicates that error with the hardware of your monitor, and it shuts off automatically to prevent further damage. And maybe turn back on, when the data can be transferred in full again.īasically, your HDMI cable shuts down because it’s not able to transfer the necessary amount of data at the same time. The moment the signals are not being transferred correctly, your monitor - for instance as a second monitor - will just turn off. For instance, if you are using a Dell UltraSharp screen or similar monitors such as Samsung Ultrawide Curved Monitors, the sellers sometimes tend to send a HDMI cable that is not up to the task. Unfortunately, even the manufacturers would provide you a cheap HDMI cable such as sometimes Dell monitors do. You wouldn’t believe it, but especially when you have a high screen resolution or an ultra-wide screen connected to your PC with a cheap HDMI cable, this problem is most likely to occur. Only these two solutions below will help you: You Need a High Speed HDMI Cable! This is great feature to have, I don’t really know why it was removed from Ubuntu default installation.When your monitor turns off and on just like that, in most of the cases, I would guess 90% it’s because the HDMI cable is not able to transfer the data from your PC and vice versa fast enough. The next time you close your laptop lid, Ubuntu will continue to run without going to sleep with all your application still running. When it opens, click on Power and move the button for Suspend when laptop lid is closed to OFF Now that GNOME Tweaks is installed, go to the Activities Overview and search for Tweaks. Step 2: Turn Off Suspend Mode when Laptop Lid Closed to install, open Ubuntu Software install or open the Activities Overview and search for GNOME Tweaks. In order to have this option on Ubuntu 17.10 and 18.04, you must have GNOME Tweaks installed.
This brief tutorial is going to show students and new users how to disable or turn off Ubuntu suspend mode when the laptop lid is closed.If you do not want the computer to suspend when you close the lid, you can change the setting for that behavior.
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