Comment 0 for bug 1683184

Problem description:
The notebook does not work when not booted using nomodeset:
It is not possible to login - after logging in the login screen shows up (sometimes the computer also shuts down, or shows information similiar to the shutdown screen (not using quiet splash boot options, so it is white text on black background)), until the login screen shows up again, only the background image is shown.

When using an USB stick, plymouth hangs after some time.

When using a text console to login instead of a graphical session, one can login, but sees how the console gets spammed with the following lines repeating itself frequently:
[ XXX.XXXXXX] AMD-Vi: Event logged [ (usually once)
[ XXX.XXXXXX] AMD-Vi: Completion-Wait loop timed out (usually twice)

When using nomodeset, things work fine, but I only get software rendering (I do not intend using the notebook as a loud heating).

During startup I found the following, potentially related messages:
(...)
[ 0.718421] ACPI Error: Method parse/execution failes [\_SB.WLBU._STA] (Node
ffff94cad68b6b68), AE_NOT_FOUND (20160930/psparse-543)
[ 6.291431] amd_gpio AMD0030:00: Failed to get gpio IRQ.
(plymouth started showing some boot screen)

And, during a different startup (please not this is transcribed from an older photo, Ubuntu version can be an early version of zesty, but also might be yakkety):
(...)
[ 12.950688] amdgpu 0000:05:00.0:fence driver on ring 10 use gpu addr 0x00000001000000b0, cpu addr 0xffff8a4fcb63d0b0
[ 12.954029] can't get the mac of 5
[ 12.960416] [drm] ring test on 0 succeeded in 16 usecs
(other ring tests, until:)
[ 12.966726] [drm] ring test on 10 succeeded in 6 usecs
[ 12.967789] [drm] ib test on ring 0 succeeded
(other ib test, until:)
[ 12.985277] [drm] ib test on ring 10 succeeded
[ 12.985277] [drm] Initialized amdgpu 3.9.0 20150101 for 0000:05:00.0 on minor 1
Begin: Loading essential drivers ... done.
(...)

Ubuntu version:
Ubuntu 17.04
(16.04 had less problems, with 16.10 installation failed)

Hardware:
Notebook: HP 15-ba009ng
CPU: AMD A10-9600P
GPU: AMD Radeon R7 M440 4 GB DDR3-RAM
(according to the web page of the vendor)

xorg version: 1:7.7+16ubuntu3

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: xorg 1:7.7+16ubuntu3
ProcVersionSignature: Ubuntu 4.10.0-19.21-generic 4.10.8
Uname: Linux 4.10.0-19-generic x86_64
.tmp.unity_support_test.1:

ApportVersion: 2.20.4-0ubuntu4
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity:Unity7
Date: Sun Apr 16 22:24:26 2017
DistUpgraded: 2017-03-11 13:02:33,428 DEBUG apt btrfs snapshots supported: True
DistroCodename: zesty
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] Carrizo [1002:9874] (rev ca) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Carrizo [103c:81fa]
   Subsystem: Hewlett-Packard Company Topaz XT [Radeon R7 M260/M265 / M340/M360 / M440/M445] [103c:81fa]
InstallationDate: Installed on 2016-12-25 (112 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
MachineType: HP HP Notebook
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.10.0-19-generic.efi.signed root=UUID=af212aa7-7cfe-4e46-a312-da2a25fb0df1 ro rootflags=subvol=@ nomodeset
Renderer: Software
SourcePackage: xorg
UpgradeStatus: Upgraded to zesty on 2017-03-11 (36 days ago)
dmi.bios.date: 09/01/2016
dmi.bios.vendor: Insyde
dmi.bios.version: F.17
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 81FA
dmi.board.vendor: HP
dmi.board.version: 67.34
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.17:bd09/01/2016:svnHP:pnHPNotebook:pvrType1ProductConfigId:rvnHP:rn81FA:rvr67.34:cvnHP:ct10:cvrChassisVersion:
dmi.product.name: HP Notebook
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP
version.compiz: compiz 1:0.9.13.1+17.04.20170109-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.76-1
version.libgl1-mesa-dri: libgl1-mesa-dri 17.0.3-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 17.0.3-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.3-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.5-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.9.0-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20170309-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.14-0ubuntu1
xserver.bootTime: Sun Apr 16 22:14:33 2017
xserver.configfile: default
xserver.errors:
 open /dev/dri/card0: No such file or directory
 open /dev/dri/card0: No such file or directory
 Screen 0 deleted because of no matching config section.
 AIGLX: reverting to software rendering
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.19.3-1ubuntu1