hybrid-graphics-linux team mailing list archive

[Yuri Ribeiro Sucupira <yuri_sucupira@xxxxxxxxxxx>]

apport information

** Attachment added: "JournalErrors.txt"
   https://bugs.launchpad.net/bugs/1608042/+attachment/4710200/+files/JournalErrors.txt

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https://bugs.launchpad.net/bugs/1608042

Title:
  64-bit XUbuntu 16.04 "Xenial" hybrid graphics (Intel + AMD): AMDGPU
  crashes / freezes / hangs entire system

Status in xserver-xorg-video-amdgpu package in Ubuntu:
  New

Bug description:
  COMPUTER: Dell Inspiron 5548 laptop

  CPU: Intel(R) Core(TM) i7-5500U CPU @ 2.40GHz

  GRAPHICS: Intel-AMD hybrid:
  - CPU-integrated: Intel Corporation Broadwell-U Integrated Graphics (driver: i915)
  - GPU: Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260/M265] (driver: amdgpu)

  OPERATING SYSTEM: 64-bit GNU/Linux XUbuntu 16.04 "Xenial"

  KERNEL: 4.4.0-31-generic

  PROBLEM: system hangs / freezes very frequently.
  I have Xscreensaver installed and noticed that when it's running an OpenGL animation (screensaver) and I move the touchpad pointer the screen freezes. I can still turn the keyboard LED backlight on and off (hence: keyboard doesn't stop working) but the pointer won't move (touchpad is locked) and I can't Alt-F1 (switch terminals). Only solution is to power off my laptop (press and hold the power button).

  I usually select the "Molecule" screensaver (it uses OpenGL), then I
  click the "preview" button and wait for about 20 seconds, then I click
  the touchpad and the computer hangs.

  When I used XUbuntu 14.04 "Trusty" with AMD's fglrx (proprietary)
  driver I didn't experience such issue. After upgrading to 16.04
  "Xenial" (which doesn't support fglrx module/driver) amdgpu module is
  loaded by default but very frequently hangs the entire system.

  Sometimes I'm quick enough to go to TTYS1 and then I get to see some
  messages such as "HARD LOCKUP on CPU0" and "HARD LOCKUP on CPU1".
  However, it's not a hardware problem because I've already executed the
  Dell Hardware Diagnostics straight from the boot (it's an EFI
  utility), it tested all the hardware components (CPU, GPU, RAM,
  keyboard, touchpad, hard disk etc.) and didn't detect any faulty
  component.

  => If I boot from GRUB with the "nomodeset" parameter the problem
  disappears completely, although graphics performance becomes terribly
  slow. But I can then preview the "Molecule" screensaver as many times
  as I want and nothing locks / hangs / freezes.

  The attached file "amdgpu-bug.txt" is the reason why I'm pretty
  convinced that the problem is being caused by the amdgpu driver.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: xserver-xorg-video-amdgpu 1.1.0-1
  ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
  Uname: Linux 4.4.0-31-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  Date: Sat Jul 30 07:01:32 2016
  InstallationDate: Installed on 2016-07-29 (1 days ago)
  InstallationMedia: Xubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  ProcEnviron:
   LANGUAGE=pt_BR:pt:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=pt_BR.UTF-8
   SHELL=/bin/bash
  SourcePackage: xserver-xorg-video-amdgpu
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  CurrentDesktop: XFCE
  DistroRelease: Ubuntu 16.04
  InstallationDate: Installed on 2016-07-29 (1 days ago)
  InstallationMedia: Xubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  Package: xserver-xorg-video-amdgpu 1.1.0-1
  PackageArchitecture: amd64
  ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
  Tags:  xenial
  Uname: Linux 4.4.0-31-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm audio cdrom dialout dip fax floppy lpadmin netdev plugdev sambashare scanner sudo tape users video
  _MarkForUpload: True

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