TIPS Backlight is heating up the PBX

[Alok Nath]

I run my PBX 27/7 on a laptop. Earlier, when I installed various PIAF versions directly from a Distro, there was no problem regarding overheatng. With a few minutes of inactivity, the LCD backlight would turn off and the laptop would run cool.

This time, on the same laptop, I first installed CentOS and then installed the latest Incredible PBX. With this, the LCD back light is always on. The laptop runs quite hot, and time to time, the Linux complains about the temperature and throttles the CPU.

Could you please help me enable the feature that turns off the backlight automatically?

 

[Alok Nath]

I guess this question is more to do with Linux rather than PIAF. Hence No Joy. Could someone recommend a good Linux help forum to post this question?​

 

[randy7376]

Alok Nath

FYI: You probably haven't gotten a response due to lack of information. Are you in a shell or X-Windows? CentOS version?

I'll assume a shell for now. See if you have vbetool installed. If not, install it via yum.

Then, try:

vbetool dpms off

See if that does what you want. If not, post back with some more information about the system.

 

[Alok Nath]

Sorry for the lack of detail. Since I am a newbie, i didnt even know what detail would be relevant to include.

I dont have a GUI in the CentOS. Just the command prompt. CentOS version is 6.6

It does not look like i have vbetool installed. Could you please let me know how exactly I can use yum to install it? What should i type at the command prompt?

 

[randy7376]

Alok Nath

As I don't have a current version of CentOS to work from, I'm going to go through the steps I would use to see if that software is installed on a Red Hat/CentOS system.

First thing to try is yum search vbetool. If you get a response showing it is available, you install it by doing yum install <PackageName>, where <PackageName> is the name yum returned to you when you did search. Most likely...

 yum install vbetool

Then try running the vbetool command I gave you earlier.

 

[Alok Nath]

This is what happened when I searched:

root@localhost:~ $ yum search vbetool
Loaded plugins: fastestmirror, presto, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: mirror.symnds.com
* extras: mirror.es.its.nyu.edu
* rpmforge: mirror.us.leaseweb.net
* updates: centos.aol.com
Warning: No matches found for: vbetool
No Matches found
WARNING: Always run Incredible PBX behind a secure hardware-based firewall.

 

[randy7376]

Alok Nath

It appears that vbetool is not installed nor available in CentOS 6.6 (or CentOS 6.7; 6.6 is no longer available). It appears it may have been available in previous versions. It's not (no longer?) available in my CentOS 6.4 installation on the home PBX.

A quick search brought this up: http://ask.systutorials.com/1420/how-to-install-vbetool-on-centos-6-6

If there's something else I can think of for you to try, I'll post it. As always, if someone else has some input, please post it!

EDIT: Have you tried using setterm ?

 setterm -blank 1

I don't know if that will turn the backlight off however. Nothing to test this on here except a virtual machine.

 

[Alok Nath]

Thanks!!! Could you help me with the first step? What do I need to type at the command prompt?

Step 1: download the source package from http://www.codon.org.uk/~mjg59/vbetool/ and unpack the package.

Without doing this step, the next step causes the following problem:

root@localhost:~ $ yum pciutils-devel pciutils-devel-static libx86-devel
Loaded plugins: fastestmirror, presto, refresh-packagekit, security
No such command: pciutils-devel. Please use /usr/bin/yum --help
WARNING: Always run Incredible PBX behind a secure hardware-based firewall.
root@localhost:~ $