Strange problem with video card

[Indus]

I have a GTX 260 card which runs at factory overclocked at 675/ 2304. It has 2 idle modes.. 1st one reduces it to 400 core and 2nd one is at 300 core.

Now this might seem like a non existant issue to some, but sometimes when I alt tab out of games to open ventrilo or a link from some game to google items, and go back into the game, the core speed permenently drops to 400 core instead of 675 and I can't seem to fix it other than rebooting it. I first noticed it after the new drivers 191.07 framerates were low after alt tabbing.

Rebooting surely does fix it everytime but its annoying.

Does anyone else have this problem? How did you fix it?

Much appreciated if you can answer this.

 

[jvroig]

To be clear, the core speed remains at 400 even after alt-tabbing back into the game and playing it for a while?

 

[Indus]

To be clear, the core speed remains at 400 even after alt-tabbing back into the game and playing it for a while?

Yes gets stuck on that, it'll go from 300 idle to 400 but not to 675.

 

[jvroig]

Does this happen EVERY TIME you alt-tab out of a game, or only sometimes or only if you do something specific after alt-tabbing out of a game? It smells like a driver bug to me.

 

[Indus]

Does this happen EVERY TIME you alt-tab out of a game, or only sometimes or only if you do something specific after alt-tabbing out of a game? It smells like a driver bug to me.

not exactly sure about everytime but often enough to annoy me and warrant rebooting. And yes it didn't happen until I upgraded to the latest drivers. I'm sure about that.

 

[jvroig]

Then that's almost surely a driver bug, unless someone here can say otherwise. NV is probably fixing it already, so you can just sit tight and at least for the moment stop alt-tabbing out of a game while you wait for updated drivers. If you really want to be proactive, you can post this bug to NV directly (I'm not sure how, but I'm sure they have channels for that)

 

[Indus]

anyone have a solution to this?

 

[Indus]

Ok I figured it out and you were right, its the DRIVERS.

The newer nvidia drivers in global settings have a POWER MANAGEMENT mode. It didn't exist in earlier version.

By default its Adaptive but should set it to Maximum Performance to avoid the bug I had.

Thank you for the help jvroig.