Hello. Googling didn't help, so I'll ask here. Can I lost device or context while working with dx11? If so, how can I handle it?

That's what I needed. Thank you.

Device and Context cannot be lost, but Swap Chain can be (though you have to reinstall driver or physically remove GPU). Read more here: http://msdn.microsoft.com/en-us/library/windows/apps/dn458383.aspx

Device and Context cannot be lost, but Swap Chain can be (though you have to reinstall driver or physically remove GPU). Read more here: http://msdn.microsoft.com/en-us/library/windows/apps/dn458383.aspx

If you read that, it's a lot more than the SwapChain being lost. You have to recreate the Device and all resources.

It's worthwhile IMO since drivers crash and the OS has to restart them sometimes, which is equivalent to reinstalling a driver or removing/replacing the GPU. Borderlands 2 did this for me a few months ago when my GPU started overheating (dust buildup in the heatsink) and it was nice that I didn't lose hours of play but rather just had a few moment of intermittent pauses/screen-blanks before I decided to find out what was wrong.

That's probably true for a production game like Borderlands, but for anything less than a commercial product it is most likely overkill. If your graphics driver crashes, there are some serious issues, and most people wouldn't expect a game to continue running through that...