kernel-packages team mailing list archive

[Vladimir Mityukov <1034002@xxxxxxxxxxxxxxxxxx>]

I'm not sure if I have the same issue. In particular, I could not find this error in my dmesg:
..
[drm:radeon_acpi_init] *ERROR* Cannot find a backlight controller
..

But I do have the issue that my laptop does not wake up fully (the
screen is black).

There is some noise starts in the notebook and led indicators start
blinking, but the screen does not turn ON.

I know, there are many possible reasons, but it worked with Catalyst,
so, I think it has to be connected to video driver (dri, kms, xf86
-video-ati, whatever..).

$ lspci | grep VGA
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] BeaverCreek [Radeon HD 6520G]
02:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Seymour [Radeon HD 6400M/7400M Series]

$ uname -a
Linux pilat-book 3.11.1-2-ARCH #1 SMP PREEMPT Sun Sep 22 19:45:00 CEST 2013 x86_64 GNU/Linux

I use radeon.dpm=1 in the kernel options;


Here's the bug-report to Archlinux tracker, but they suggested to file the bug here:
https://bugs.archlinux.org/task/37078

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1034002

Title:
  Lenovo E525 screen black on resume

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

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.

  My setup is a Lenovo Thinkpad E525, AMD A8-3500m.
  --- 
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
  ApportVersion: 2.0.1-0ubuntu12
  Architecture: amd64
  ArecordDevices:
   **** 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
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  tealeg     2861 F.... pulseaudio
   /dev/snd/controlC0:  tealeg     2861 F.... pulseaudio
  Card0.Amixer.info:
   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
  Card0.Amixer.values:
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Card1.Amixer.info:
   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
  Card29.Amixer.info:
   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
  Card29.Amixer.values:
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  DistroRelease: Ubuntu 12.04
  HibernationDevice:
   # RESUME=/dev/sda5
   RESUME='UUID=61453936-e394-41de-8b00-5ee8f17023b3'
  InstallationMedia: Ubuntu-Server 12.04 LTS "Precise Pangolin" - Alpha amd64 (20111129)
  MachineType: LENOVO 12002KG
  Package: linux 3.2.0.27.29
  PackageArchitecture: amd64
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm
   PATH=(custom, user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  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
  RelatedPackageVersions:
   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
  WifiSyslog:
   
  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

To manage notifications about this bug go to:
https://bugs.launchpad.net/dri/+bug/1034002/+subscriptions