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[Akdor 1154 <1380076@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Suspend on surface pro 3 from GUI does not work. (Nothing happens)

Doing it manually also fails, and nothing appears in dmesg:
#echo "mem" > /sys/power/state

Error while writing to stdout
write_loop: Invalid argument

And, more interestingly,
#cat /sys/power/state

freeze disk

Using the not-so-good-and-apparently-unsupported
#echo "freeze" > /sys/power/state

does seem to successfully suspend, however I cannot resume from this
(assumed to be a separate issue). Likewise, pm-hibernate seems somewhat
functional.

I am using a the utopic unicorn kernel compiled from git at
kernel.ubuntu.com, with a tiny patch that is required for my keyboard to
work (hard to file bug reports without a keyboard). The official kernel
behaves identically, as does vanilla 3.17 from the mainline folder of
kernel-ppa.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: surfacepro3 suspend

** Attachment added: "lspci-vnvn.log"
   https://bugs.launchpad.net/bugs/1380076/+attachment/4231542/+files/lspci-vnvn.log

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https://bugs.launchpad.net/bugs/1380076

Title:
  Can't suspend on Surface Pro 3

Status in “linux” package in Ubuntu:
  New

Bug description:
  Suspend on surface pro 3 from GUI does not work. (Nothing happens)

  Doing it manually also fails, and nothing appears in dmesg:
  #echo "mem" > /sys/power/state

  Error while writing to stdout
  write_loop: Invalid argument

  And, more interestingly,
  #cat /sys/power/state

  freeze disk

  Using the not-so-good-and-apparently-unsupported
  #echo "freeze" > /sys/power/state

  does seem to successfully suspend, however I cannot resume from this
  (assumed to be a separate issue). Likewise, pm-hibernate seems
  somewhat functional.

  I am using a the utopic unicorn kernel compiled from git at
  kernel.ubuntu.com, with a tiny patch that is required for my keyboard
  to work (hard to file bug reports without a keyboard). The official
  kernel behaves identically, as does vanilla 3.17 from the mainline
  folder of kernel-ppa.

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