Troubleshooting Ubuntu 18.04 Screen Issues: Pink Discoloration and GPU Usage

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Discussion Overview

The discussion revolves around troubleshooting a screen issue on Ubuntu 18.04, specifically a pink discoloration that appears intermittently. Participants explore potential causes related to video drivers, hardware, and software interactions, with a focus on the implications of using different operating systems and configurations.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Josh reports a pink discoloration on his monitor while using Ubuntu, which he has not observed on Windows.
  • Some participants humorously suggest the issue may be related to Windows or Bill Gates.
  • There is a clarification that Ubuntu is installed on an SSD, while Windows is on a separate hard drive, and the user selects which to boot at startup.
  • Tom suggests that the issue may be related to the video driver or the initialization of the video card at boot time, and asks for clarification on whether the problem changes during a session or persists until reboot.
  • Josh mentions that the pink issue comes and goes, and he has not seen it boot to that condition, indicating it may not be a display issue.
  • Participants discuss the possibility of thermal issues with the video card or dirty contacts as potential causes for the problem.
  • There is a focus on the type of graphics card being used, with Josh confirming he has a Radeon RX 570 and is using AMD's commercial driver.
  • Another participant inquires about the use of OpenFOAM and whether it utilizes the GPU, to which Josh responds that OpenFOAM does not use the GPU.
  • Josh clarifies that the issue is not exclusively pink and not limited to the upper-left corner of the screen.

Areas of Agreement / Disagreement

Participants generally agree that the issue is likely related to Ubuntu and potentially the video driver, but there is no consensus on the exact cause or solution. Multiple competing views and hypotheses remain regarding the nature of the problem.

Contextual Notes

Participants express uncertainty about the specific cause of the discoloration, with limitations noted in their understanding of the interactions between hardware and software. There are unresolved questions about the impact of different drivers and configurations on the issue.

member 428835
Hi PF!

Can you see the upper-left pink on my monitor? It comes and goes, though I don't think I've ever seen it on Windows, only Ubuntu (to be fair Ubuntu runs about 99% of the time). Do you know what it's from, or anything about it?

Thanks for your time!

Josh
 

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Computer science news on Phys.org
I think its Bill Gates peeking out over your window and letting out a sigh.
 
  • Haha
Likes   Reactions: Wrichik Basu
jedishrfu said:
I think its Bill Gates peeking out over your window and letting out a sigh.
hahahaha see I thought about this, hence installing Windows
 
So is this Ubuntu running under WSL on Windows 10 or Ubuntu running as a dual boot with the option to switch to Windows on the next boot?
 
jedishrfu said:
So is this Ubuntu running under WSL on Windows 10 or Ubuntu running as a dual boot with the option to switch to Windows on the next boot?
The entire SSD runs Ubuntu. Then a separate HD runs Windows. At boot-up I select which drive to boot from.
 
Video driver problem is my immediate thought, although initializing the video card at boot time is a possibility.

You state the problem "comes and goes."
Are you saying that it change during a session, or that sometimes it boots to that condition and stays present until a reboot? What about immediately successive reboots?

If changing during a session, it may be a thermal problem with the video card, or a particular application being strange, or maybe just dirty edge contacts on the video card.

And there is always the possibility it's a problem with the display.

Good Luck! You have now entered the brave new world of troubleshooting.

Cheers,
Tom
 
Yes, it's just an Ubuntu problem (to my knowledge). Of course, I do most cpu-intensive work from Ubuntu and am running it almost exclusively.

Tom.G said:
Video driver problem is my immediate thought, although initializing the video card at boot time is a possibility.

You state the problem "comes and goes."
Are you saying that it change during a session, or that sometimes it boots to that condition and stays present until a reboot? What about immediately successive reboots?
I've never seen it boot to that condition: the problem "comes and goes" (currently gone and I have not shut down the system since the picture in post 1).

Tom.G said:
If changing during a session, it may be a thermal problem with the video card, or a particular application being strange, or maybe just dirty edge contacts on the video card.

And there is always the possibility it's a problem with the display.

Good Luck! You have now entered the brave new world of troubleshooting.

Cheers,
Tom

Thanks for the reply Tom. I'll check my cable connections and see what happens. Was thinking it's likely not a display issue since it comes-and-goes and since I have yet to see any issues from the Windows HD. I monitor the temps from the cpu and gpu: not sure this is it but next time I see the problem I'll check it right away.
 
joshmccraney said:
Can you see the upper-left pink on my monitor? It comes and goes, though I don't think I've ever seen it on Windows, only Ubuntu (to be fair Ubuntu runs about 99% of the time). Do you know what it's from, or anything about it?
Do you mean the horizontal stripes above "Activity"?
 
  • #10
Tom.G said:
Video driver problem is my immediate thought.
Mine too. Is this Intel integrated graphics, or a card? If it is an NVIDIA card are you using the commercial driver or the GPL one?
 
  • #11
Keith_McClary said:
Do you mean the horizontal stripes above "Activity"?
Yea.

pbuk said:
Mine too. Is this Intel integrated graphics, or a card? If it is an NVIDIA card are you using the commercial driver or the GPL one?
It is a Radeon RX 570. I'm using AMDs commercial driver.
 
  • #12
joshmccraney said:
It is a Radeon RX 570. I'm using AMDs commercial driver.
Good. Another thought - are you the guy that's using OpenFOAM? Is this (or anything else) using the GPU?
 
  • #13
My previous monitor had vertical colored stripes coming up from the bottom edge mostly. They faded out as it warmed out.

Does screenshot show it?
 
  • #14
pbuk said:
Good. Another thought - are you the guy that's using OpenFOAM? Is this (or anything else) using the GPU?
Yea, I use OpenFOAM. OpenFOAM does not use the GPU.

Yea, screenshot shows it. Problem is not exclusively pink, and not exclusively in the upper-left corner.
 

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