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10 Posts

01-21-2014

toronto

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  • Message 1 of 9

Windows 8.1 freezes while booting up with discrete graphic card T520

2014-01-21, 15:37 PM

Hi all,

 

Hoping someone can help me here. If I use my discrete video card (nvs 42000m) to boot into windows, it will freeze on the sign in page or sometimes on the metro page however when Optimus is enabled it works just fine.

 

So I thought it was a driver issue. I went to Nvidia and downloaded their latest video card driver for windows 8.1. No help

 

Uninstalled that, went to Lenovo's support site and installed their recommended driver and all other windows 8 drivers. Again it would freeze

Booted into safe mode uninstalled that, turned optimus back on, and this time used Windows update to install my video drivers (intel and Nvidia both this time).

 

Didn't work. So I spent maybe another hour or so fiddling and after many restarts i finally found the culprit. It was the Lenovo monitor driver. As soon as I uninstalled that, everything worked fine and I could finally use my laptop with optimus disabled and discrete video card enabled.

 

Windows update keeps recommending me to update the monitor driver but if I do, then it freezes again so I'm just leaving it as the default generic monitor.

 

The reason why I made this thread is to inform and save potential users in the future who have a similar laptop to mine (t520 with hd 3000 and nvidia 42000m) with Windows 8 installed and they happen to choose to solely run their laptop with the discrete graphics card, remember to uninstall your monitor driver.

 

I am open to recommendations and other alternatives.

 

 

 

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216 Posts

12-31-2013

United States of America

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  • Message 2 of 9

Re: Windows 8.1 freezes while booting up with discrete graphic card T520

2014-01-21, 17:53 PM

We had this same issue with a new W540 two weeks ago.  Let me find out who fixed it and what was done.  Stay tuned.


W530 | 3840QM | 32g @ 1.35v CL9 1986z | 512g 840 Pro | 1t HGST 7200 | FHD AUO v.4 | Quadro K2k | GOBI 5k | Centrino 6300
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10 Posts

01-21-2014

toronto

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  • Registered: ‎01-21-2014
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  • Message 3 of 9

Re: Windows 8.1 freezes while booting up with discrete graphic card T520

2014-01-22, 0:26 AM

That's great, thanks for the help as this is really starting to annoy me!

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10 Posts

01-21-2014

toronto

8 Signins

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  • Posts: 10
  • Registered: ‎01-21-2014
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  • Message 4 of 9

Re: Windows 8.1 freezes while booting up with discrete graphic card T520

2014-01-23, 15:23 PM

No one else has encountered this?

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10 Posts

01-21-2014

toronto

8 Signins

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  • Posts: 10
  • Registered: ‎01-21-2014
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  • Views: 55
  • Message 5 of 9

Re: Windows 8.1 freezes while booting up with discrete graphic card T520

2014-01-27, 16:08 PM

Someone please help me!

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10 Posts

01-21-2014

toronto

8 Signins

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  • Posts: 10
  • Registered: ‎01-21-2014
  • Location: toronto
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  • Message 6 of 9

Re: Windows 8.1 freezes while booting up with discrete graphic card T520

2014-02-11, 16:44 PM

wrote:

Hi all,

 

Hoping someone can help me here. If I use my discrete video card (nvs 42000m) to boot into windows, it will freeze on the sign in page or sometimes on the metro page however when Optimus is enabled it works just fine.

 

So I thought it was a driver issue. I went to Nvidia and downloaded their latest video card driver for windows 8.1. No help

 

Uninstalled that, went to Lenovo's support site and installed their recommended driver and all other windows 8 drivers. Again it would freeze

Booted into safe mode uninstalled that, turned optimus back on, and this time used Windows update to install my video drivers (intel and Nvidia both this time).

 

Didn't work. So I spent maybe another hour or so fiddling and after many restarts i finally found the culprit. It was the Lenovo monitor driver. As soon as I uninstalled that, everything worked fine and I could finally use my laptop with optimus disabled and discrete video card enabled.

 

Windows update keeps recommending me to update the monitor driver but if I do, then it freezes again so I'm just leaving it as the default generic monitor.

 

The reason why I made this thread is to inform and save potential users in the future who have a similar laptop to mine (t520 with hd 3000 and nvidia 42000m) with Windows 8 installed and they happen to choose to solely run their laptop with the discrete graphics card, remember to uninstall your monitor driver.

 

I am open to recommendations and other alternatives.

 

 

 


 

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1 Posts

09-17-2015

Louisville, KY

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  • Registered: ‎09-17-2015
  • Location: Louisville, KY
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  • Message 7 of 9

Re: Windows 8.1 freezes while booting up with discrete graphic card T520

2015-09-17, 17:23 PM

FYI.

 

Issue persists to Windows 10.

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2 Posts

10-16-2015

USSR

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  • Location: USSR
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  • Message 8 of 9

Re: Windows 8.1 freezes while booting up with discrete graphic card T520

2015-10-16, 10:03 AM

same issue for windows 8.1 on T420 with discreete graphic

but uninstallation of the monitor driver does not fix the issue. 

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6 Posts

05-23-2016

United States of America

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  • Location: United States of America
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  • Message 9 of 9

Re: Windows 8.1 freezes while booting up with discrete graphic card T520

2016-05-26, 5:58 AM

You need to download Lenovo Thinpad LCD INF file in support.lenovo.com and follow Readme to install this can fix your issue. I had the same with T430, Win10 and resolved successfully.

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