I noted you have Linux operating system and you are using switchable graphics on your laptop. This configuration requires a special graphics driver provided with the laptop manufacturer.
Intel provides with graphics drivers compatible with Microsoft® Windows operating systems; however, Intel has an Open Source project. From their website you will find graphics drivers for Linux. I recommend you to be part of their community.
Thank you for reply.
Yes, I know that drivers from the site of notebook manufacturer would be the best variant in my case. But drivers for Linux are absent at lenovo.com, at least, for my laptop... Intel card by itself works properly with driver from Intel Graphics for Linux* | 01.org .
The question is why AMD card does work with Haswell-ULT Integrated Graphics Controller while it doesn't work with 3rd Gen Core processor Graphics Controller?
As I understand, AMD card outputs data to the Intel card, and Intel card delivers it to the screen in PowerXpress systems. But which characteristics of Intel card can allow AMD card interact with one integrated card and forbid this for another?
Knowing this, I think, possibly might help to change code of kernel/driver in order to obtain working graphics...