When i use pickPosition(windowPosition, result) → Cartesian3 function,the chrome return "DeveloperError : Picking from the depth buffer is not supported. Check pickPositionSupported."
Then i find the browse not support WEBGL_depth_texture Extensions.
My graphics card is a AMD graphics card, the driver has been updated to the latest.
It’s possible that your computer doesn’t support the WebGL extension needed to make pickPosition work. Take a look at WebGL report and see if 'WEBGL_depth_texture" is listed in the ‘Supported Extensions’ section: http://webglreport.com/
If the extension isn’t in that list, your computer doesn’t have the graphics support needed to make that feature work.
We did make a few improvements to pickPosition recently. If you’re not using the latest version of Cesium, it might be a good idea to upgrade to 1.31 to see if that fixes the problem.
This seems like a WebGL issue and not a Cesium issue. Since the hardware did not change but your OS did, I would think it has something to do with the drivers for the graphics card. From your reply, it looks like you have downloaded and installed the latest drivers for your specific card, but try seeing if anyone has had similar issues with WebGL in a similar situation.