Unable to Set Screen Resolution(1920 * 1080) in Ubuntu 20.0.4

[ankitprumi]

https://i.stack.imgur.com/68DsI.jpg

I recently purchased a 24" LG PC. when I start my PC it shows a warning that your screen resolution is not currently set to 1920*1080. I try to solve this warning by using a terminal. but can't solve this issue. I set 1920 * 1080 new screen resolution using the below command cvt 1920 1080

cvt 1920 1080
sudo xrandr -0-newmode "1920x1080_60.00"  173.00  1920 2048 2248 2576  1080 1083 1088 1120 -hsync +vsync
sudo xrandr --addmode VGA-1 "1920x1080_60.00"

https://i.stack.imgur.com/dGCtL.png

After applying a new resolution still getting issues. Also, the screen does not fully fit in the monitor.

[MAFoElffen]

Just some observations to take note of:

- Though you can do it that way (out of many ways)... Setting the resolution via xrandr is "temporary" for the current session. If you do it that way, there are other things you need to do to continue that, or it will not be there (again) when you reboot. There is no persistence with xrandr.
- If you add a modeline via xrandr, inside of an xorg.conf file for XServer, or other methods... You need to enure the modeline matches your video hardware and display. Many GPU's can process many forms of modlelines for a specific resolution, but that does not mean it is a match for a specific connected display. From what you described as being your current issues, there may be a problem with the modeline not being a good match between the two. There are many ways to calculate a modeline and have it display a resolution, but that means you need to find which one is that match between.
- When you said you upgraded to a '24" LG PC'... Did you really mean that you have a PC and upgraded to a 24" LG display or TV?
- If we knew the display Make (LG) and model (?), and the video GPU information, you may be making this harder than it needs to be. Just saying...

If you ran the UbuntuForum's 'system-info' script in my signature line, it has a fairly extensive graphics hardware and settings section in it's report, that would help us determine what is going on, and help us to make a recommendation based on those facts. Just choose to upload the report to a Pastebin and post the URL of that report in a post.

[DuckHook]

Please don't post large graphics to the forums. This is very problematic for helpers with low speeds, who are on limited data plans, or are viewing from smartphones or small screens.

If you must post resource-intensive images, please post them as attachments using the paperclip icon in the *Adv Reply* toolbar.

For similar reasons, please use the default fonts and styles in your postings. Odd fonts/styles are hard to read on mobile devices or for those with reading difficulties.

[ankitprumi]

Hello @MAFoElffen
I generated system report using your provided script. see below pastebin URL

https://termbin.com/7lno

[MAFoElffen]

I'm analyzing the report right now. Just got off a closing shift.. I is almost 1 am here.

What is your Brand and model of Display please? I have everything except that information. I see on LG 24" at 720p (1280x720), one at 1080p (1920x1080)...

On your CPU, which is an APU which Intel UDH 630 Graphics... the internal APU is capable of 4K support, but your motherboard specs by Gigabyte says the motherboard is limited to a MAX res of only 1920x1200(???)

[ankitprumi]

Hello @MAFoElffen

My PC Brand - LG
Model Number - 24MP88HV-S

Thank you

[MAFoElffen]

Thank you...

[MAFoElffen]

I recently purchased a 24" LG PC. when I start my PC it shows a warning that your screen resolution is not currently set to 1920*1080. I try to solve this warning by using a terminal. but can't solve this issue. I set 1920 * 1080 new screen resolution using the below command cvt 1920 1080

cvt 1920 1080
sudo xrandr -0-newmode "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync
sudo xrandr --addmode VGA-1 "1920x1080_60.00"

After applying a new resolution still getting issues. Also, the screen does not fully fit in the monitor.

Okay. You have a custom built Desktop PC, built with an OEM Gigabyte H410M S2 V3 motherboard, connected to an LG 24mp88hv-s display.

The lowest common denominator limiting your display resolution is your display, which is 1920x1080 @60Hz or 1080p...

The next limiting factor is your motherboard, which is only capable of 1920x1200.

Your GPU is capable of 4K resolutions if it was in another motherboard that supported it 'and' connected to a 4K display...

Your highest resolution possible with your hardware "is" 1920x1080.

I'm preparing a post with not just different modelines to try as a last resort... But for things to try before having to resorting to add modelines.

This make take a bit, but I am working on it.

Question... Why did you spec VGA-1 instead of _____? On xrandr. it might have given you another name for an HDMI port... Unless you are actually connected to the display by only through a VGA adapter, which would limit things down to the lowest denominator...

[ankitprumi]

Hello @MAFoElffen
Our system shows DP-1 instead of HDMI-1 or VGA-1.
Do we need to change gigabyte motherboard ( which is compatible with HDMI LG 24" monitor)?

[MAFoElffen]

Hello @MAFoElffen
Our system shows DP-1 instead of HDMI-1 or VGA-1.
Do we need to change gigabyte motherboard ( which is compatible with HDMI LG 24" monitor)?

#1. "DP-1" That's what I thought... Instead of VGA-1. But I did not want to assume that nor blurt out that I knew it was different.
#2. No. Your board will do 1080p/1920x1080... which is what you are trying for.

Note: I bought a 4K Display on last year's Black Friday sales, thinking It would be great on my PC... I kept losing track of mouse cursor at that resolution. LOL.