Ubuntu 14.04 Unknown Display

resolution system-settings administration xorg display

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Solution 1

I found this on the Arch Distro BBS maybe it can help: Intel HD Graphics 4600 driver works as Intel Xeon E3-1200

You might try installing the Intel-microcode package as well. You are most likely utilizing the Intel Processor's GPU, without knowing what model Mother Board you have.

Solution 2

This might help someone.

Try a better VGA cable.

A poor quality VGA cable often causes this kind of problem. I've recently stumbled upon this strange problem and couldn't able to find a reasonable cause for this issue in Ubuntu (In 16.04.2 for me).

Cable type which worked for me : HOTRON E246588 AWM style 20276 VW-1 80°C 30V

33,096

Uvais Ibrahim

Enthusiastic in Linux/Unix. Trying to learn the soul of Linux. :)

Updated on September 18, 2022

Comments

Uvais Ibrahim over 1 year
I have installed Ubuntu 14.04 in my machine(with Gigabyte motherboard), having an Acer 19" Monitor. Unfortunately its resolution not working properly. See the image.

This is my xrandr -q output.

But when I take system settings for adjusting display it shows unknown display and only two resolutions available on the drop down as given in the picture.

Please let me know if you need any input from my side.

Thanks in advance.

Please help me to correct the display resolution as I am a beginner to Linux and Ubuntu. This is my last 30 lines of /var/log/Xorg.0.log

The result of running sudo lspci | grep VGA is as follow.
```
00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller (rev 09)
```
- hermest over 9 years
  
  please give us the output of sudo lspci | grep VGA
- user300458 over 9 years
  
  I think it's a problem with your graphics driver, not monitor. What's your video card model?
- Uvais Ibrahim over 9 years
  
  I don't have any graphics card installed on my system. Is there anything else you required from my side ? like any terminal command output ?
- Grizly over 9 years
  
  What kernel version are you using? this comment makes me ask
- Uvais Ibrahim over 9 years
  
  This is my kernal version - 3.13.0-30-generic
- Uvais Ibrahim over 9 years
  
  Sorry, This is my kernel version - 3.13.0-36-generic
- Uvais Ibrahim over 9 years
  
  Any updates from anyone ?
- Anoop Sankar about 4 years
  
  @UvaisIbrahim I do have the same issue. Did you get a perfect solution??
Uvais Ibrahim over 9 years

Yes. I have already ran sudo apt-get update && sudo apt-get upgrade. But didn't help. Also there is no any software updates for this time.
Yorkit over 9 years

What dies Additional Drivers show?
Uvais Ibrahim over 9 years

It says No additional drivers available.
Uvais Ibrahim over 9 years

On Software and Updates, in additional drivers tab, it says No additional drivers available.
Yorkit over 9 years

Does your login screen look the same way?
Uvais Ibrahim over 9 years

Yes. Login screen also looks the same way.
Yorkit over 9 years

Did you chose the option to install updates upon installation?
norbitwise almost 9 years

sudo apt-get install intel-microcode && sudo reboot helped me.
OnePuttMike over 5 years

Thank you for this response. I ran into this problem. I was in the settings for 20 minutes and entered a few things in the command line. I began to think I needed a new monitor. Then I read this and found the connection to the VGA extension cable was just barely hanging on. Plugged it in properly and "bingo!" problem solved. Thank You!
Vikas Swami over 5 years

@OnePuttMike I am glad it helped you.