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NVidiaSucks
Paper Tape
Posts: 2
Registered: ‎05-11-2017
Location: US
Views: 750
Message 1 of 4

Can't detect dual monitors on Y510P with NVidia GEForce GT 750M

System specs:

Laptop: Lenovo Y510P
OS: 64 bit Windows 10 Pro edition
Processor: Intel Core i7-4702MQ CPU 2.20GHz processor
RAM: 16GB
Video card: GeForce GT 750M - driver version 21.21.13.7849, released 1/20/2017

I've been having an ongoing issue with my NVidia GEForce GT 750M graphics card for quite some time. I am unable to detect a second monitor, no matter what I try. When I go into Display Settings -> Display, and click on Detect, I get the message "Didn't detect another display."

For a short while after I installed the driver listed above, I was able to detect the second monitory by going into the NVidia Control Panel, where I was able to detect the second monitor with no problem. However, after I rebooted my laptop, now when I try to open the NVadsgeqtjidia Control Panel, I get the following message:

NVidia Display settings are not available

You are not currently using a display attached to an NVidia GPU.


I get this message whether I have the second monitor connected via a VGA cable or an HDMI cable.

In addition, I noticed that when I go into the Windows Control Panel -> Device Manager, it always lists two instances of the NVidia GeForce GT 750M under the Display Adapters heading, and the first of the two always has the yellow triangle with the exclamation point showing, indicating that it is not working properly. When I look at the Properties window for this first instance, sure enough, it states the following:

Windows has stopped this device because it has reported problems. (Code 43)

I did a little bit of research on this message, and it turns out that it's a generic message that Device Manager throws whenever it detects an error with a hardware device. The error could be with the device, with the driver, or, apparently in some cases, with Windows itself.

If I disable the first instance, it doesn't change anything. If I uninstall the first instance (without checking the box to uninstall the drivers as well), the display adapter changes to a Generic Plug and Play adapter in the Windows Control Panel, the system reboots, and when I check the Windows Control Panel again, the display adapter reverts back to the NVidia GeForce GT 750M, and there is only one instance. However, I am still unable to detect a second monitor, and after the laptop goes to sleep, eventually the second instance of the adapter appears in the Windows Control Panel again.

I've tried this with multiple monitors, VGA cables, and HDMI cables, and in addition, as I mentioned earlier, for a short period of time after I update the driver, I was able to detect a second monitor (although only in the NVidia Control Panel, never through the Windows Display Settings dialog) so it's not any of that.

 

I just rebuilt my system (installed an SSD), and even went so far as to download the latest GeForce 750M driver (382.05 - WHQL) and install it using the NVidia installer, but still no luck.

A couple of additional interesting points:

  1. When I look at the adapter in Control Panel -> Device Manager, it shows up as an NVidia GeForce GT 750M. But when I right click on the desktop and select Display Settings, and then click on Display adapter properties, the adapter shows up as a Microsoft Basic Display Driver
  2. Even with the new driver installed and after a reboot, I continue to get the "NVidia Display settings are not available = You are not currently using a display attached to an NVidia GPU" message.

I'm posting  here because I've already spent an inordinate amount of time on the NVidia site trying to figure out how to resolve this, including posting all of this information on a forum on their site. No one has replied in three months, so this is my last ditch effort. This is incredibly annoying and frustrating - if anyone has any ideas or suggestions, they are greatly appreciated.

Support Specialist
Posts: 2,948
Registered: ‎02-22-2017
Location: GB
Views: 690
Message 2 of 4

Re: Can't detect dual monitors on Y510P with NVidia GEForce GT 750M

Hello NVidiaSucks

Thanks for using the Lenovo forums.


A great saga indeed, hopefully on our forums we can offer some sort of help towards a resolution.

 

Does this happen with the driver details when you`re not using a seconds display?

 

Try running an LSC scan both when only one and when two displays are being used, see if this can find any errors for you.

 

1. Please click on the following link
2. Under the section ‘Download’ select the relevant Hyperlink dependant on whether your Lenovo is running Windows 7/8/8.1 32 bit or 64 bit.
3. When prompted, select save and browse to a drive and directory in which to save the downloaded files.
4. Navigate to the folder where you saved the installation file, lscsetup_x86_26001.exe.
5. Double-click the installation file icon to start the installation.
6. Follow the onscreen instructions via the installation wizard that will install Lenovo Solution Centre on your system.
7. Once installed you will have a ‘Lenovo Solution Centre’ icon on your desktop please click to open this.
8. Once solution center is opened please select ‘Checkup’ then ‘Hardware Scan’ and ‘Full Scan’
9. This will take up to 20 minutes, see if this can find any errors.

 

And just for good measure, Try a static discharge for this, it may help to resolve the issue or at least get rid of any built up static on the motherboard.

(If the battery is internal, please just skip the remove/replace battery steps.)
1. Turn the unit off
2. Remove the battery and the Mains adapter
3. Press and hold the front power button for 30 seconds
4. Replace the battery and the Mains adapter
5. Turn the unit on as normal

Hope this helps, let us know how you get on.


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NVidiaSucks
Paper Tape
Posts: 2
Registered: ‎05-11-2017
Location: US
Views: 682
Message 3 of 4

Re: Can't detect dual monitors on Y510P with NVidia GEForce GT 750M

Krakken, thanks.

 

The behavior I'm experiencing occurs whether a second monitor is connected or not. Another point I neglected to call out is that sometimes when I was able to get the second monitor detected and working, the laptop would work for about five minutes, then it would freeze up and the screens would go black. After a couple of minutes, the system would reboot and after it came back up, it would not be able to detect the second monitor.

 

I actually ran the LSC yesterday and did a hardware scan. It didn't show any errors, although this is what appeared in the window:

 

LSC HW Scan Video Card listing.PNG

 

And here were the results:

 

LSC HW Scan Video Card results.PNG

 

So the Solution Center detects two instances of the card as well, although it doesn't appear to actually test the instance that includes the word NVidia in the name. Which kind of makes sense, since I'm pretty sure I don't actually have two video cards in my laptop.

 

So, I'll try the static discharge, but I need to ask a question - I'm not familiar with a "Mains adapter." Are you just saying that I need to remove the batter and unplug the laptop when I do the static discharge? Or is the Mains adapter something I actually need to remove from the laptop?

 

Thanks.

Support Specialist
Posts: 2,948
Registered: ‎02-22-2017
Location: GB
Views: 658
Message 4 of 4

Re: Can't detect dual monitors on Y510P with NVidia GEForce GT 750M

This does seem fairly odd, unless you would have two graphics cards, there should not be a second listing of the graphics card.

 

The mains adapter would actually just be the charger itself, so yeah, just unplug it from the unit itself.

 

Let us know how you get on.


==================================================================================
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If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!

 

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