I am using the Alienware 17r4 with the G-sync capable 120Hz display and the GeForce 1060 graphics card. I believe the Intel HD Graphics 530 is disabled in hardware, as there is no sign of it in the BIOS or in Windows or Linux. I am running Gentoo x86_64 with Linux kernel version 4.8.13 (though I have also tried versions 4.4.26, 4.8.11, and 4.8.12-r1) and using the NVIDIA driver version 375.20.
First, bringing the system out of suspend results in a completely broken system. On previous kernels, the system would come up and seem to be functional, but switching between open windows resulted in a black screen. Switching to a VTTY and back would sometimes fix the issue, however the VTTY was blank with patches of glitchy-looking pixels. Eventually either X would crash and reload, resulting in a working system, or it would freeze entirely and I would have to power off by holding the power button. On my most recent kernel, bringing the system out of sleep results in a black screen and an unresponsive system (e.g. keyboard LEDs do not respond to numlock/capslock). The dmesg output produced upon waking can be seen in my nvidia-bug-report.log.gz file from the output of ‘journalctl -b -1’. My computer went to sleep at around 2016-12-09T09:34:43-06:00 and woke at around 2016-12-09T09:36:03-06:00 (my local time).
Second, the monitor backlight intensity cannot be lowered from its maximum value. Pressing FN+F9/F10 results in an OSD brightness indicator which raises and lowers in response to the input, but the actual screen brightness does not change. Similarly, changing the brightness setting in the Plasma 5 power widget (which operates through powerdevil) has no effect. /sys/class/backlight has two entries, acpi_video0 and acpi_video1. Manually modifying the “brightness” file in either of these directories has no effect, however acpi_video1/brightness does update when the FN+F9/F10 keys are pressed (though not in response to the Plasma 5 power widget). I have attempted to install the third-party nvidiabl module (which you might be able to see in my nvidia-bug-report.log.gz), though it will not load as it fails to find compatible hardware. At no point have I managed to lower the brightness of the display from within Linux.
nvidia-bug-report.log.gz (115 KB)