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[Bug 1034002]


Awesome. To spell it out a little more explicitly, here is what I did
(Arch x86_64 3.14-mainline) to have this apparently accomplished
automatically from now on:

sudo su

echo 'ADD_PARAMETERS="--quirk-test --quirk-s3-bios"' >>

pm-suspend --quirk-test --quirk-s3-bios --store-quirks-as-lkw

Which should save the quirks, perhaps with some redundancy. Checking the
contents of the (new)


file should show the matches made against your particular system,
especially e.g. hardware and firmware details. I guess these could be
patched into (for my HP at least)


with some of the returned information, given that this file is supposed
to have a fairly up-to-date {white,black,broken}-list.

Obviously follow this only at your own risk, etc. I have no idea how
this would work when it comes to fglrx, or even how stable it is against
kernel/pm/upower/whatever updates. Here are some more good references
for information:



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  1002:9641 [Lenovo ThinkPad E525] Screen black on resume

Status in Direct Rendering Infrastructure:
Status in The Linux Kernel:
  Fix Released
Status in “linux” package in Ubuntu:

Bug description:
  I did the kernel smoke test for the quantal kernel on precise.

  I can suspend and resume however when I resume I the screen stays
  black. It looks like the backlight isn't coming on, but it's noteable
  that I don't see anything on my external screen either. I can see
  consoles on my external monitor (over HDMI) and if I disconnect the
  HDMI cable and reconnect it then I am also able to see my Unity
  session on that screen. This issue is present with both the quantal
  kernel and the stock 12.04 one.

  WORKAROUND: Use fglrx.

  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
  ApportVersion: 2.0.1-0ubuntu12
  Architecture: amd64
   **** List of CAPTURE Hardware Devices ****
   card 1: Generic_1 [HD-Audio Generic], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
   /dev/snd/controlC1:  tealeg     2861 F.... pulseaudio
   /dev/snd/controlC0:  tealeg     2861 F.... pulseaudio
   Card hw:0 'Generic'/'HD-Audio Generic at 0xf0b44000 irq 48'
     Mixer name	: 'ATI R6xx HDMI'
     Components	: 'HDA:1002aa01,00aa0100,00100200'
     Controls      : 6
     Simple ctrls  : 1
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
   Card hw:1 'Generic_1'/'HD-Audio Generic at 0xf0b40000 irq 16'
     Mixer name	: 'Conexant CX20590'
     Components	: 'HDA:14f1506e,17aa21ea,00100002'
     Controls      : 18
     Simple ctrls  : 10
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown'
     Mixer name	: 'ThinkPad EC (unknown)'
     Components	: ''
     Controls      : 1
     Simple ctrls  : 1
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  DistroRelease: Ubuntu 12.04
   # RESUME=/dev/sda5
  InstallationMedia: Ubuntu-Server 12.04 LTS "Precise Pangolin" - Alpha amd64 (20111129)
  MachineType: LENOVO 12002KG
  Package: linux
  PackageArchitecture: amd64
   PATH=(custom, user)
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-7-generic root=UUID=c2742c1e-158f-446d-9884-d6f037d7fa8c ro quiet splash elevator=deadline
  ProcVersionSignature: Ubuntu 3.5.0-7.7~precise1-generic 3.5.0
   linux-restricted-modules-3.5.0-7-generic N/A
   linux-backports-modules-3.5.0-7-generic  N/A
   linux-firmware                           1.79
  Tags:  precise running-unity
  Uname: Linux 3.5.0-7-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip kvm libvirtd lpadmin plugdev sambashare sudo

  dmi.bios.date: 07/28/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8IET34WW(1.07)
  dmi.board.asset.tag: Not Available
  dmi.board.name: 12002KG
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr8IET34WW(1.07):bd07/28/2011:svnLENOVO:pn12002KG:pvrThinkPadE525:rvnLENOVO:rn12002KG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 12002KG
  dmi.product.version: ThinkPad E525
  dmi.sys.vendor: LENOVO

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