random freeze

[Derek Trotter]

The system locks up at random. It may not lock for a day after booting up the machine. It may lock up after a few minutes of booting up the machine. Sometimes the display just freezes, displaying whatever was last being displayed on the monitor. Sometimes the monitor displays a solid color when locking up. The machine does not respond to pings nor any of the key combinations involving sysrq. The only way to recover is a hard reset.

The machine is running Kubuntu 12.04.2 LTS Release: 12.04

The computer is a HP Pavilion p6-2003w Desktop PC.

The url giving its specs is below.

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03052733&lang=en&cc=us&contentType=SupportFAQ&prodSeriesId=5151865&prodTypeId=12454

Motherboard AAHD2-HY (Holly)

Manufacturer: Pegatron
Form factor: uATX: 24.38 cm (9.6 inches) x 24.38 cm (9.6 inches)
Chipset: AMD Hudson-D2 FCH
Memory sockets: 2 x DDR3
Front side bus speeds: 100 MHz UMI (Unified Media Interface)
Processor socket: FM1
Expansion Slots:
PCI-Express Generation 2 speed

    1 PCI Express x16
    3 PCI Express x1
    1 PCI Express Mini Card x1

Processor
AMD E2 3200 Processor

    TDP: 65W
    Operating speed: Up to 2.4 GHz
    Number of cores: 2
    Socket: FM1
    Bus speed: 4.0 GT/s HT3

Memory
4 GB

    Amount: 4 GB
    Speed: PC3-10600 MB/sec
    Type: DDR3-1333

The above is the memory it came with. I have since added another identical 4GB. This upgrade did not affect the random lockup problem.

Built in graphics
AMD E-Series Processors
E2-3200 HD 6370D 65W
This is the on board graphics. I have added an NVIDIA geforce 210 1024MB card. This upgrade did not affect the random lockup problem.

Sound/Audio
Integrated Realtek ALC 656 Audio
*Integrated audio is not available if a sound card is installed.

    Built-in High Definition 5.1 channel audio
    Audio codec: Realtek ALC 656

Networking
LAN: 1000-Base-T

    Interface: PCI Express x1
    Technology: Realtek RTL8111E gigabit ethernet controller
    Data transfer speeds: up to 10/100/1000 Mb/s
    Transmission standards: 1000-Base-T Ethernet

I added an additional RTL8111 PCIe nic. This also did not affect the locking up issue.

The machine came with windows7. I soon replaced it with XP. The random lockup bug didn't show itself until I replaced windows with Kubuntu. For a few weeks I tried Slackware 14.0 64bit and did not experience any problem with randome freezes during this time. When I reinstalled Kubuntu, the random lockup bug returned.

Thanks for your help.

Derek

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xorg 1:7.6+12ubuntu2
ProcVersionSignature: Ubuntu 3.5.0-26.42~precise1-generic 3.5.7.6
Uname: Linux 3.5.0-26-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
Date: Sun Mar 24 20:01:49 2013
InstallationMedia: Kubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120820.1)
MarkForUpload: True
ProcEnviron:
 LANGUAGE=
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)

[Derek Trotter (expat-arizonan)]

I'm sorry I forgot to mention it, but I had the same problem with random locking up when I used the ATI graphics that came with the computer.