Hi,
My Model is 15-ab125ax
I Would like to report that I have same problem as OP (Disk speed,
keyboard, AMDGPU-Pro) and problem with wifi. Ubuntu 16.10 does not boot
("AMD-Vi: Completion loop timed out" followed by kernel panic). I had a
lot of phone and email conversations with HP support and it does seems
like my Laptop is locked for WINDOWS 10 ONLY. Currently I'm using Ubuntu
16.04 with self compiled 4.7 kernel from AMD staging which allows me to
install AMDGPU. I'll try 4.8-rc4.
Hope this is helpful to someone.
Regards
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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/1616830
Title:
Bad disk performance with AMD Carrizo FCH controllers
Status in linux package in Ubuntu:
Triaged
Bug description:
I have had a problem where importing database was much slower in a
dual-boot machine when booted into ubuntu compared to running ubuntu
inside virtualbox in windows 10. It seems Ubuntu does not like Amd
carrizo fch
I collected some information and posted here (and attached as text file to
report):
https://answers.launchpad.net/ubuntu/+question/360373
To put it short, the disk performs up to 10 times better inside
virtualbox. (yes I thought about caches but VM box also has half the
memory and they must favor ubuntu running on real hardware with twice
ram....)
I believe this is a kernel/driver related problem since it directly
effects disk performance.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-34-generic 4.4.0-34.53
ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
Uname: Linux 4.4.0-34-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version
k4.4.0-34-generic.
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: jobgo 3381 F.... pulseaudio
/dev/snd/controlC0: jobgo 3381 F.... pulseaudio
Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
Date: Thu Aug 25 12:36:05 2016
HibernationDevice: RESUME=UUID=ba38c925-a729-4e33-a08f-a7573abd2826
InstallationDate: Installed on 2016-08-23 (1 days ago)
InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64
(20160719)
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
MachineType: HP HP Pavilion Notebook
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-34-generic.efi.signed
root=UUID=cd8e7352-609f-4ebd-83ba-24335f6eece9 ro
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-4.4.0-34-generic N/A
linux-backports-modules-4.4.0-34-generic N/A
linux-firmware 1.157.3
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/09/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F.17
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 80B5
dmi.board.vendor: HP
dmi.board.version: 81.29
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrF.17:bd03/09/2016:svnHP:pnHPPavilionNotebook:pvr:rvnHP:rn80B5:rvr81.29:cvnHP:ct10:cvrChassisVersion:
dmi.product.name: HP Pavilion Notebook
dmi.sys.vendor: HP
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