Random freeze - Netbook Pavilion DM1-4055EG

[renataogarcia]

Yeah, I tried Catalyst. It worked for me, or at least much less freezes than I have with open source. However since I've changed to Gnome Shell I had to move to open source driver because Catalyst wasn't working well with Gnome Shell, specially with 3 monitors, which is my case.

[michaelk1]

I had similar problems with Mint 12 64-bit.
I turned off power management for wireless card. Hasn't frozen since.

As root, create file etc/pm/power.d/wireless containing

#!/bin/sh
/sbin/iwconfig eth1 power off

then
chmod 755 /etc/pm/power.d/wireless
reboot
(assuming wireless device is eth1, might be wlan0).

Michael

[marcuslauer]

Hello Michael,
thank you for the hint. I try it out.

ML

I had similar problems with Mint 12 64-bit.
I turned off power management for wireless card. Hasn't frozen since.

As root, create file etc/pm/power.d/wireless containing

#!/bin/sh
/sbin/iwconfig eth1 power off

then
chmod 755 /etc/pm/power.d/wireless
reboot
(assuming wireless device is eth1, might be wlan0).

Michael

[marcuslauer]

Hi,
yes wireless device is eth1. i thied it out. but i think i have no fortune with this netbook. under ubuntu 12.04 beta freezes are extremely rarely. but they happen. in the last 2 weeks 2 times.
1) when i thied to install google chrome browser
2) during watching a youtube video

So, under ubuntu 12.04 it is much better but not perfect. youtube freeze is a well known friend from the previous ubuntu releases.

Hello Michael,
thank you for the hint. I try it out.

ML

[MrArch]

Same problem but I'm using Arch Linux so I guess it's linux specific and not really Ubuntu specific. The freezes happen mostly during high load and youtube videos but it also happens when I'm typing some documents in LibreOffice. I also noticed the brcmsmac driver is very dodgy so I use the broadcom wl driver.

Using the open source or proprietary drivers does not make any difference. Tonight I will try installing Debian stable to see if an older kernel fixes the lockups.

Anyone found a fix for the hard lockups?

[marcuslauer]

Hi,
I didn't find any solutions and yes I think it is a Linux kernel issue - not related to any ubuntu version. And I don't know if the freezes are caused of the wireless modulr or graphicdriver or something else.

I use the Netbook at work with win7 - no problems. It's a shame...

ML

[pjbroad]

Sounds very like this issue, same hardware, same random hard freezes.
http://ubuntuforums.org/showthread.php?t=1989051

[MrArch]

Finally found the solution:
http://ubuntuforums.org/showthread.p...6#post12108086

[marcuslauer]

Hello,
here is a possible solution for the lockup/freeze problem with this netbook. Found it at the HP support forum and it seems to work:

Quote:

For anyone else with this problem, for info, I'm using grub, and the simplest way I found to disable the thermal module was to edit /etc/default/grub.
This had a line something like:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

To disable the thermal module, I changed this to:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash thermal.off=1"

Having edited this file, you then need to run

update-grub

to activate the change.

http://h30434.www3.hp.com/t5/Noteboo...1339919/page/2

[pjbroad]

I've been running with the grub option "thermal.off=1" set on my dm1-4125sa for a few days and, so far, no freezes. The best its been since the day I bought it.