@ nicola: Did you have activated the option "download updates during installation" ? If not, is the system updated to most current state?
Background: see Release Notes/Known issues [1] since you have a Intel Skylake-iGPU I've seen that you are also capable to speak other languages from your profile, so if you like to lear more how to use the Hybrid-graphics on open-source drivers you can find some content on a local-community-wiki [2]. Please note also that AMDgpu is considered to still receive fixes [3]. Sound doesn't work for me with 4.6 RC4. It does with Mainline-Kernel 4.5.2 [1] https://wiki.ubuntu.com/XenialXerus/ReleaseNotes#A6th_gen_Intel_Core_CPUs_and_llvmpipe_software_rasterizer [2] http://wiki.ubuntu-it.org/Hardware/Video/GraficaIbrida/Prime] [3] https://www.phoronix.com/scan.php?page=news_item&px=Linux-4.6-APR21-DRM-Fixes -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1570802 Title: ATI Radeon not working: from no rendering to system freeze To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1570802/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs