Finally after upgrading today to Ubuntu Kernel 4.4.0-28.47, equivalent to Mainline Kernel 4.4.13, suspend/resume works out of the box, no special kernel parameters nor rc.local commands needed.
ATI discrete graphics starts DinOff but can be used when desired. DRI_PRIME=1 glxinfo | grep "OpenGL renderer" OpenGL renderer string: Gallium 0.4 on AMD HAINAN (DRM 2.43.0, LLVM 3.8.0) glxinfo | grep "OpenGL renderer" OpenGL renderer string: Mesa DRI Intel(R) Haswell Mobile Dell Inspiron 15R 5537. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1566302 Title: Ubuntu 16.04: Suspend freezes the system after upgrade to linux image 4.4.0-16 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1566302/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
