Display problems.

703810995

703810995

703810995

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Hello.

Two monitors are connected to the two DVI connectors on the graphics card. The motherboard also has onboard graphics, which is set to 'Auto'. The monitors automatically use the graphics card for video.

If I disconnect both monitors from the graphics card and leave the onboard option to 'Auto' (and connect one of the monitors to the onboard DVI graphics connector) , the monitor does not come on at all and goes on stand-by.

If I want to try the onboard graphics, do I need to to change the option from 'Auto' to onboard? If yes, and the monitor still does not come on, if I connect the monitors to the graphics card again, will they work again automatically even though BIOS has now been changed to use onboard graphics or will my computer be stuck without video with no way to change the setting back to 'Auto' as there is no display?

Thank you.
 
Most modern motherboards don't have onboard graphics it is on the CPU and some CPU's don't have an iGPU function eg amd 7400f doesnt have onboard graphics but the 7400 does!

If your mobo doesnt have onboard and the cpu doesn't have an iGPU then the display outputs on the motherboard simply won't work.

Assuming you have a CPU with an iGPU ( or an old mobo that really does have on board graphics) then Auto its probably detecting that there is a discrete GPU installed so defaults to that.

Even an entry level graphics card will perform a lot better than an iGPU so I don't know why you want to use the onboard instead but setting bios to "onboard" should enable it as should removing the gpu and leaving it on Auto.


If you mess up the bios settings then removing the cmos battery or pressing the reset button if your mobo has one should load the default bios settings.
 
Thank you for your reply.

Both the motherboard and CPU are old! The motherboard definitely has onboard graphics. Not sure about the CPU but it's about 15 years old!

As the title says, I am having display problems. It is possible that it may be the graphics card that's failing, so I want to use the onboard graphics. I don't need anything fancy for graphics, so onboard graphics would suffice. The graphics card was mainly to run my dual monitors. One monitor will do for now.

Thank you for your advice. I will try setting it to onboard. If I don't post back with an update, that means everything has gone wrong! Haha.
 
I set the motherboard to DVI, but the monitor still did not come on. Do I need to take the graphics card out entirely for this to work?

When I connected the monitor back to the graphics card, the monitor came on and worked even though the BIOS setting has been set to onboard DVI.
 
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703810995 said:
I set the motherboard to DVI, but the monitor still did not come on. Do I need to take the graphics card out entirely for this to work?

When I connected the monitor back to the graphics card, the monitor came on and worked even though the BIOS setting has been set to onboard DVI.
Click to expand...
What motherboard and CPU? It would be easier to help if we knew what we were dealing with and could consult the specs/manual, etc.

Normally, if you have onboard, it is possible to use both the graphics and the integrated, so you do not need to remove it. However, the behaviour where it just disables it (due to the presence of the graphics card) is also possible.

Note that there was a transition period with DVI where it went from accepting both analogue (equivalent to VGA) and digital, to only accepting digital, which can be an issue with some old systems/monitors.
 
703810995 said:
As the title says, I am having display problems. It is possible that it may be the graphics card that's failing, so I want to use the onboard graphics.
Click to expand...
Makes sense but the title on its own is rather vague.

703810995 said:
Do I need to take the graphics card out entirely for this to work?
Click to expand...
Not usually but theres no reason why you can't try just unplug the power cable first, if it doesnt work you can give the card and expansion slot a quick dust before you put it back you never know that might fix your "display problems" what ever they are.

Tetras said:
What motherboard and CPU? It would be easier to help if we knew what we were dealing with and could consult the specs/manual, etc.
Click to expand...
^this, also make and model of GPU and monitor


As above there is more than one DVI standard so that could cause you issues as well:

computermesh.com

Differences Between DVI-D, DVI-I, and DVI-A with Pictures

Information of types and the differences between DVI connectors (DVI-I DVI-D DVI-A) in the market and their features (with pictures and comparison table).
computermesh.com computermesh.com
 
Thank you for your replies.

I do apologise, I normally include system specs, but I just thought it was a generic query and might not require additional specifics.

Motherboard
CPU
Graphics Card
Monitors
OS - Linux
No idea if motherboard graphics driver is installed.

Makes sense but the title on its own is rather vague.
Click to expand...

I deliberately omitted additional info as I just wanted to know how to get the onboard to work and not concentrate on trying to fix the issue with the graphics card.

Just for your information, the issue is flickering and taking several minutes for the monitors to show anything. Initial startup showed fine, but not login screen, however, now even the initial startup doesn't show at times. Anyway, as mentioned, this post is about getting the onboard to work, not trying to fix the issue with the graphics card.

Thank you.
 
That motherboard has an AMD 760G northbridge which contains a GPU.
You can get both AMD & NVIDIA graphics drivers working under Linux if they are installed correctly. Try installing the 760G driver again.
 
703810995 said:
I deliberately omitted additional info as I just wanted to know how to get the onboard to work and not concentrate on trying to fix the issue with the graphics card.
Click to expand...

Yes but it left us grasping at straws.

Now we know the motherboard has onboard graphics with DVI-D, HDMI and VGA outputs and your monitor has HDMI and VGA and comes with a HDMI to DVI-D cable.

That mobo only allows you to use a single digital output at a time you cant use the DVI-D and HDMI ports at the same time but you can use the VGA port as well.

Your monitors are also 1920*1200 not the more common 1920*1080



703810995 said:
Initial startup showed fine, but not login screen
Click to expand...

The flickering, blank screen could be down to drivers, the wrong resolution or refresh rate so the GPU might be fine.




therealdippy said:
You can get both AMD & NVIDIA graphics drivers working under Linux if they are installed correctly. Try installing the 760G driver again
Click to expand...

Have you just switched to Linux from windows because they are dropping support for W10 and it’s too old for W11?

If yes was it working fine with the GTX 460 before you installed Linux and what distro have you installed?

I’ve only dabbled in Linux, but an update recently broke the graphics on an ancient Linux mint laptop I have because the integrated intel graphics were depreciated so it won’t boot into Cinnamon now but I can still get into Wayland.


Its possible you have a Linux problem not a hardware problem.







703810995 said:
this post is about getting the onboard to work, not trying to fix the issue with the graphics card
Click to expand...

From you mobo manual to get onboard DVI-D working I would have tried:
IGX = “UMA”
UMA Frame buffer size = “1024”
Onboard VGA output connect = D-sub/DVI
VGA core clock = Auto

Then find “init display first”
Set it to = On chip VGA


If I was using the GTX 460 I would set IGX to disabled and Init display first to PEG.


Personally I would ditch your HDMI to DVI cable and just use a HDMI cable (onboard VGA connect output then set to = D-sub/HDMI).
 
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Thank you for your replies.

I had already checked that the IGX was set to UMA, which it was.

I used to use Ubuntu but the only reason I changed to another distro was due to the problems with getting nVidia drivers to work! I really did give it a mighty big chance, but the sheer volume of troubleshooting steps (most of which didn't work) was enough for anybody to be forced to ditch it! My current distro works fine with my hardware without needing to manually install anything. The nVidia drivers are already installed via the Software Centre. I will probably have done this myself but can't remember as it was a long time ago. The nouveau drivers are also installed.

I pressed the button to change the brightness or contrast in the actual monitors own menu and automatically set everything to maximum again and adjusting the settings back have proved to be impossible! It keeps resetting back every time I try. I have just about managed to set it to 75% brightness, which is still way to bright, but any further press of the buttons would risk it setting back to 100! I am having to change all my backgrounds to grey to avoid the discomfort! I'm assuming this behaviour may be due to the constant flickering that just won't allow the settings to be adjusted, but that's just a wild guess.

My current display settings only has one refresh rate, which is 60.

No, I've been using Linux for nearly 30 years! I started with Ubuntu but have been using PCLinuxOS for several years.

I will try the motherboard suggestions after I have posted this message. The monitor takes its time to come on and stabilise!

Two suggestions which I would like to avoid until I have tried all other suggestions is purchasing a new cable and messing with the nVidia drivers (re-install).
 
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