I've tested Mainline Kernels (Xenial) 4.4.8, 4.4.9, 4.4.10, 4.4.11,
4.4.12 and 4.4.13, all these works flawlessly suspend and resume a lot
os times with no errors. Mainline (Xenial) 4.4.8 works but lasts too
much time to suspend.
None of the Kernels in Ubuntu Xenial Repository worked.
Dell Inspiron 15R (5537):
00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell-ULT
Integrated Graphics Controller [8086:0a16] (rev 09) (prog-if 00 [VGA
controller])
Subsystem: Dell Haswell-ULT Integrated Graphics Controller [1028:05ea]
Flags: bus master, fast devsel, latency 0, IRQ 46
Memory at c0000000 (64-bit, non-prefetchable) [size=4M]
Memory at b0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 5000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915
03:00.0 Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI] Sun
XT [Radeon HD 8670A/8670M/8690M / R5 M330] [1002:6660] (rev ff) (prog-if ff)
!!! Unknown header type 7f
Kernel driver in use: radeon
Kernel modules: radeon
ATI Display controler is turned off by using "echo "OFF" >
/sys/kernel/debug/vgaswitcheroo/switch" in "/etc/r.local"
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https://bugs.launchpad.net/bugs/1589139
Title:
The system does not suspend on Ubuntu 16.04
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