[HP Pavilion zd7000] computer freezes while poweroff

[Jérôme]

Using Lubuntu, I click on the "logout" button from the desktop menu and choose to poweroff the computer. Then I see the plymouth feedback (lubuntu written besides dots which are changing their color while the shutdown). Finally, I get a black screen but the computer still run for minutes. I have to force the poweroff with a long pression on the power button of my laptop.

Later I see in /var/log/syslog :
---
06-29 09:46 dbus: <29>Jun 29 09:46:05 dbus[455]: [system] Activating service name='org.freedesktop.systemd1' (using servicehelper)
06-29 09:46 dbus: <29>Jun 29 09:46:05 dbus[455]: [system] Successfully activated service 'org.freedesktop.systemd1'
06-29 09:46 rsyslogd: [origin software="rsyslogd" swVersion="7.4.4" x-pid="419" x-info="http://www.rsyslog.com"] exiting on signal 15.
06-29 11:46 rsyslogd: [origin software="rsyslogd" swVersion="7.4.4" x-pid="599" x-info="http://www.rsyslog.com"] start
---

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-generic 3.13.0.30.36
ProcVersionSignature: Ubuntu 3.13.0-30.54-generic 3.13.11.2
Uname: Linux 3.13.0-30-generic i686
NonfreeKernelModules: wl nvidia
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: admin_seulement 1326 F.... lxpanel
CRDA: Error: [Errno 2] Aucun fichier ou dossier de ce type: 'iw'
CurrentDesktop: LXDE
Date: Sun Jun 29 11:57:56 2014
HibernationDevice: RESUME=UUID=8fe171dd-0ab2-434d-9fb8-b1c1ced9cb5f
InstallationDate: Installed on 2014-06-28 (0 days ago)
InstallationMedia: Lubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140416.2)
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: Hewlett-Packard Pavilion zd7000 (PN599EA#ABF)
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-30-generic root=UUID=b6d47f5b-8476-41d1-a5a5-789e6f309752 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-30-generic N/A
 linux-backports-modules-3.13.0-30-generic N/A
 linux-firmware 1.127.4
RfKill:

SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/12/2004
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.34
dmi.board.name: 0880
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 28.2E
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.34:bd07/12/2004:svnHewlett-Packard:pnPavilionzd7000(PN599EA#ABF):pvrRev1:rvnHewlett-Packard:rn0880:rvr28.2E:cvnHewlett-Packard:ct10:cvrN/A:
dmi.product.name: Pavilion zd7000 (PN599EA#ABF)
dmi.product.version: Rev 1
dmi.sys.vendor: Hewlett-Packard

[Brad Figg (brad-figg)]

This change was made by a bot.

[Jérôme (jerome-bouat)]

I have the same bug when I'm not connected into the desktop environment (just the lightdm greater). I login into a tty console and execute "sudo poweroff". Same result.

[Jérôme (jerome-bouat)]

The bug occurs each time I want to poweroff whatever the method is.

[Jérôme (jerome-bouat)]

I achieved to poweroff my computer after the following attempts to install my wifi proprietary driver.

However, with a previous attempt to install this driver, I'm not sure that this package fixed the issue : I previously installed by using synaptic :
- b43-fwcutter
- firmware-b43legacy-installer

The wifi didn't yet worked.

Next I executed the below commands :
"""
sudo purge firmware-b43legacy-installer
sudo apt-get install firmware-b43-installer
"""

[Jérôme (jerome-bouat)]

How can a wifi driver be related to a freeze while poweroff ?

[Jérôme (jerome-bouat)]

As a complement, I remember that the graphical tool for managing the proprietary driver first displayed 3 devices which had a proprietary driver. However, after installing the nvidia driver for my graphic card, then I didn't saw the 2 other devices into the list proposed by the graphical tool. Looking again after the bug workaround (installing the wifi driver), then I noticed the 2 missing devies appeared again into the graphical tool.

[Yure Felipeto (yurefelipeto14)]

This bug affects me too. But i'm using Ubuntu 15.10 with kernel 4.2.