Chrome Does Not Display Suitable Srcset Picture

I'm trying to use img srcset attribute with Chrome, but it does not display srcset suitable picture. I test it on Linux (Chromium 41) and Windows (Chrome 42) with two different 1x

Solution 1:

A chromium issue have been opened about upscaling issue : https://code.google.com/p/chromium/issues/detail?id=456084

Upscaling seems to be actual Chromium algorithm to displays srcset pictures:

The upscaling is by design. As a compromise between over-downloading and image quality we "draw a line" between the resources at their geometric mean. We may change that behavior in the future based on network condition, user preferences, current DPR, etc.