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sweennyy
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Posts: 6
Registered: ‎02-07-2014
Views: 4,886
Message 1 of 10

B590 - Switchable Graphics: GF GT720M disabled in Device Manager

Hello to Lenovo community from  a newcomer!

 

I've bought a B590 and installed a Win 7 64bit

I have installed all available drivers from the support page and have the following issue:

 

Device Manager:

i see 2 graphics devices

Intel HD Graphics

NVIDIA GeForce GT 720M

the discrete card is disabled with error code 43 and has an exclamation mark near it (http://i.imgur.com/pFkjloq.png   sorry my system language is russian)

Moreover, if i start the NVidia Control Panel it gives me an error with text: "current display is not connected to nvidia GP"

GeFoerce Experience is not starting with a back-end error (http://i.imgur.com/AmDkHE0.png)

 

Now here are the ways i tried to use but it did not help:

1. Enable high performance and update with manually downloaded nvidia driver

2. Do the same with HDMI cble connected to a plasma

3. Disable \ enable the device (screen goes black, than to normal and everything stays the same)

4. Format c: reinstall Win8.1 64 and install all drivers - same thing 

5. Format c: reinstall Win7 64  and install the graphics drivers after everything else (h1d9d9.exe h2d903.exe)

6. Update GT720M drivers  from device manager  (driver is up to date)

7. Run a high-performance 3D game (War Thunder)  - it uses Intel HD

 

What else can i do?

I saw people with switchable graphics use some kind of application to specify the game-apps that should use a discrete videocard. I don't have such an app to specify my games.

 

Any idea?

 

 

Retired Support Specialist
Posts: 4,447
Registered: ‎04-22-2013
Location: Philippines
Views: 4,866
Message 2 of 10

Re: B590 - Switchable Graphics: GF GT720M disabled in Device Manager

hi sweennyy,

 

Welcome to Lenovo Community Forums!

 

   Can you try under Device Manager Uninstall the Intel Graphcis "make sure to place a check on a prompt saying delete driver software for this device" 

 

   After Uninstalling it do the same on the Nvidia Then restart the system.

Try repeating the steps untill the Uninstall prompt does not show a check box  "delete driver software for this device"  anymore.

 

Do another restart and Install the following in this sequence

 

1.  Intel Display Driver  

2.  NVIDIA Optimus Video Features Driver  

 

 

See if that works

 

Hope this helps

Cheers!

 



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sweennyy
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Posts: 6
Registered: ‎02-07-2014
Views: 4,848
Message 3 of 10

Re: B590 - Switchable Graphics: GF GT720M disabled in Device Manager

Did not work that way.

 

Here are some strange thing that were encountered while trying your solution:

 

1. Deleted Intel HD driver (with software via checkbox you prompted)

2. Restart

3. After that In device manager I see 2 cards:

- unknown VGA controller

- nVidia GT 720M  without exclamation mark (it disappeared)!

But the NV Control panel still did not find any nvidia GP connected  to the monitor.

Proceeding to next steps

4. Deleting NV driver (with checkbox)

5. Reboot

6. Install Intel Driver (h1d217ww.exe), Reboot

7. Install Optimus driver features for nVidia (h1d929ww.exe), reboot

8. Same issue (exclamation mark near NV card and error 43 on it)

 

Tried the following:

1. Delete both drivers, reboot

2. Install only Optimus driver (h1d929ww.exe. It install both drivers btw), reboot

3. Same problem

4.Delete Intel driver, reboot

5. And here is the funny thing: video freezes on boot screen, windows continues to boot, I hear the win-started melody, i can even enter passord and logon and hear the Logon sound, but the screen shows the boot-screen

6. Reboot to safe mode

7/ In device manager i see standard VGA controller and NV card with no exclamation mark

 

I think the problem is in the drivers incompatibility or incompatibily with system resources cards use.

BTW i can't swith BIOS to Discrete card. Only "integrated" and "switchable" options are available. 

No updates for bios. Current version 1.06

 

sweennyy
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Posts: 6
Registered: ‎02-07-2014
Views: 4,842
Message 4 of 10

Re: B590 - Switchable Graphics: GF GT720M disabled in Device Manager

Even more suprizes:

 

Continued from the previous post

8. In Safe mode installed Optimus driver (h1d903ww), reboot to Win normally

9. Both cards present in DevMngr. But the Intel card has exclamation mark (err 52, driver not signed) and NV card is OK

10. Games did not start in this configuration

11. Now installing Intel certified driver h1d217ww

sweennyy
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Posts: 6
Registered: ‎02-07-2014
Views: 4,838
Message 5 of 10

Re: B590 - Switchable Graphics: GF GT720M disabled in Device Manager

Continued:

 

12. Intel HD graphics driver h1d217ww.exe is older than one included in OPTIMUS  h1d903ww.exe. Nevertheless installing. Reboot

13. Same issue (NV card with exclamation mark and err 43)

 

Games do start but it seems they use Intel HD controller (low fps). 

How do i know the graphics card switched? I don't have any indicator LEDs or stuff. BTW all this was made on high-performance battery plan.

 

Should i phisically turn to support with my warranty? 

Any other ideas?

 

 

sweennyy
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Posts: 6
Registered: ‎02-07-2014
Views: 4,837
Message 6 of 10

Re: B590 - Switchable Graphics: GF GT720M disabled in Device Manager

Yet again Product
B590 (20208)
sweennyy
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Posts: 6
Registered: ‎02-07-2014
Views: 4,810
Message 7 of 10

Re: B590 - Switchable Graphics: GF GT720M disabled in Device Manager

Problem solved:

 

The only way to make both devices work correctly and have option to choose videocard for application is 

UPDATING BIOS.

 

I updated to 1.16

Everything works well from no on. 1.06 is somewhat corrupted.

pathikkumar8141
Paper Tape
Posts: 3
Registered: ‎09-02-2014
Location: india
Views: 3,799
Message 8 of 10

Re: B590 - Switchable Graphics: GF GT720M disabled in Device Manager

Dear I have same problem but I cant find update of bios for 1.16 .... and I have b490 Lenovo laptop.. wiil you plzz give me link for that bios for 1.16 ??
pathikkumar8141
Paper Tape
Posts: 3
Registered: ‎09-02-2014
Location: india
Views: 3,769
Message 9 of 10

Re: B590 - Switchable Graphics: GF GT720M disabled in Device Manager

Dear I have same problem but I cant find update of bios for 1.16 .... and I have b490 Lenovo laptop.. wiil you plzz give me link for that bios for 1.16 ??

twentynine
What's DOS?
Posts: 1
Registered: ‎10-30-2014
Location: Romania
Views: 3,502
Message 10 of 10

Re: B590 - Switchable Graphics: GF GT720M disabled in Device Manager

Hello everyone,

Somebody please help.

i have B590 and i cant find the bios update 1.16 to resolv problem with the GT720M driver. 

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