freebsd stable - Dec 2016 - suspend/resume on Skylake (Lenovo T460s) with FreeBSD11 stable

Hi everybody!

i have been hardly trying to get my Lenovo T460s to suspend *and to 
resume again*.

Eventually the system suspends when i close the lid.
The power LED is slowly blinking on and off.

That is it! I am not able to resume my system anymore.
When I push the power button once the power LED *keeps* slowly blinking 
on and off. :(

Has anyone of you been able to setup suspend/resume with a notebook 
equipped with current Intel chipset?
on FreeBSD 11.0-STABLE or
on FreeBSD 12.0-CURRENT?

Any hints or help is highly appreciated.
Below you'll find my pciconf -lv if needed i am happy to hand in dmesg 
aswell.

best regards
Chris


------ snipp ------

root at fb:~ # pciconf -lv
hostb0 at pci0:0:0:0:    class=0x060000 card=0x223317aa chip=0x19048086 
rev=0x08 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Skylake Host Bridge/DRAM Registers'
     class      = bridge
     subclass   = HOST-PCI
vgapci0 at pci0:0:2:0:    class=0x030000 card=0x223317aa chip=0x19168086 
rev=0x07 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'HD Graphics 520'
     class      = display
     subclass   = VGA
none0 at pci0:0:8:0:    class=0x088000 card=0x223317aa chip=0x19118086 
rev=0x00 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Skylake Gaussian Mixture Model'
     class      = base peripheral
xhci0 at pci0:0:20:0:    class=0x0c0330 card=0x223317aa chip=0x9d2f8086 
rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP USB 3.0 xHCI Controller'
     class      = serial bus
     subclass   = USB
none1 at pci0:0:20:2:    class=0x118000 card=0x223317aa chip=0x9d318086 
rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP Thermal subsystem'
     class      = dasp
none2 at pci0:0:22:0:    class=0x078000 card=0x223317aa chip=0x9d3a8086 
rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP CSME HECI'
     class      = simple comms
none3 at pci0:0:22:3:    class=0x070002 card=0x223317aa chip=0x9d3d8086 
rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     class      = simple comms
     subclass   = UART
pcib1 at pci0:0:28:0:    class=0x060400 card=0x223317aa chip=0x9d108086 
rev=0xf1 hdr=0x01
     vendor     = 'Intel Corporation'
     class      = bridge
     subclass   = PCI-PCI
pcib2 at pci0:0:28:2:    class=0x060400 card=0x223317aa chip=0x9d128086 
rev=0xf1 hdr=0x01
     vendor     = 'Intel Corporation'
     class      = bridge
     subclass   = PCI-PCI
pcib3 at pci0:0:28:4:    class=0x060400 card=0x223317aa chip=0x9d148086 
rev=0xf1 hdr=0x01
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP PCI Express Root Port'
     class      = bridge
     subclass   = PCI-PCI
isab0 at pci0:0:31:0:    class=0x060100 card=0x223317aa chip=0x9d488086 
rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP LPC Controller'
     class      = bridge
     subclass   = PCI-ISA
none4 at pci0:0:31:2:    class=0x058000 card=0x223317aa chip=0x9d218086 
rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP PMC'
     class      = memory
hdac0 at pci0:0:31:3:    class=0x040300 card=0x223317aa chip=0x9d708086 
rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP HD Audio'
     class      = multimedia
     subclass   = HDA
none5 at pci0:0:31:4:    class=0x0c0500 card=0x223317aa chip=0x9d238086 
rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP SMBus'
     class      = serial bus
     subclass   = SMBus
em0 at pci0:0:31:6:    class=0x020000 card=0x223317aa chip=0x156f8086 
rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Ethernet Connection I219-LM'
     class      = network
     subclass   = ethernet
none6 at pci0:2:0:0:    class=0xff0000 card=0x223317aa chip=0x522a10ec 
rev=0x01 hdr=0x00
     vendor     = 'Realtek Semiconductor Co., Ltd.'
     device     = 'RTS522A PCI Express Card Reader'
iwm0 at pci0:4:0:0:    class=0x028000 card=0x01308086 chip=0x24f38086 
rev=0x3a hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Wireless 8260'
     class      = network
nvme0 at pci0:5:0:0:    class=0x010802 card=0xa801144d chip=0xa804144d 
rev=0x00 hdr=0x00
     vendor     = 'Samsung Electronics Co Ltd'
     class      = mass storage
     subclass   = NVM
root at fb:~ #

------ snipp ------

On Wed, Dec 14, 2016 at 05:15:12PM +0100, Chris Ernst
wrote:
> 
> i have been hardly trying to get my Lenovo T460s to suspend *and to resume
> again*.
> 
> Eventually the system suspends when i close the lid.
> The power LED is slowly blinking on and off.
> 
> That is it! I am not able to resume my system anymore.
> When I push the power button once the power LED *keeps* slowly blinking on
> and off. :(
What was the last revision where suspend/resume worked on your T460s?

Approximately two months ago, I tried the then HEAD of drm-next-4.7
of the FreeBSDDesktop repo [1] and had no success.

-- Christian

[1] https://github.com/FreeBSDDesktop/freebsd-base-graphics