Latest LQ Deal: Latest LQ Deals
Go Back > Forums > Linux Forums > Linux - Distributions > Red Hat
User Name
Red Hat This forum is for the discussion of Red Hat Linux.


  Search this Thread
Old 04-29-2008, 03:51 AM   #1
LQ Newbie
Registered: May 2007
Posts: 11

Rep: Reputation: 0
Monitor enters power save when X starts

Hi All,

Hoping someone can help me with this. I am trying to fix a users computer which is brand new, just out the box but is having some sort of power management issue.

The system in question is a Dell T7400 and has 2 NVDIA QUADRO FX 3700(non SLI) cards installed. Whenever the system starts to boot to the the OS which is RHEL 5 (2.6.18-8.e15) GRUB is seen and the initial text based loading screen is seen but then the monitor displays a message 'Entering powersave mode' and the video goes blanks and doesnt come back on. The system appears top continue booting up, the OS was pre-installed by Dell so I imagine it has still to go through it's initial setup wizard such as creating user accounts etc.

We are able to get to a login prompt by going in at run level 3(we had to create accounts via run level 1 1st) but as soon as we try to run x the issue re-appears so it seems like it has something to do with this. I tried editing xorg.conf but there is no such file in the X11 directory, could this be because the user cant complete this initial setup wizard yet?

We also tried running system-config-display but the fault re-appeared as soon as this program tried to run. We have also tried running with acpi=off and vga=normal set on the grub line but this makes no difference. From a hardware point we tried each video card individually in the system along with known working monitor and cables and the issue occurs all the time.

I cant register on the RHN network to try updating the system as the network sues manual IP and the suer needs network admin to do this who isnt available at the moment so we tried to do a re-install. The video dropped again during this when x was started. One of the other curious thing was that everytime we tried booting from the RHEL DVD we would get an error stating kernel image vmlinuz could not be found, possibly a bad disc, we could boot from other discs with no problems.

I am all out of ideas, I can only think of getting network access and register on RHN or do a complete re-install incase its got something to do with the way the image was applied from the factory.

Sorry for the long post, does anyone have any ideas?
Old 04-29-2008, 08:36 AM   #2
Registered: Jan 2002
Location: Germany
Distribution: Kubuntu
Posts: 444

Rep: Reputation: 30
can you try vga=0
Old 04-30-2008, 03:13 AM   #3
LQ Newbie
Registered: May 2007
Posts: 11

Original Poster
Rep: Reputation: 0
Hi Bio,

Managed to get network access and running yum update seemed to resolve the issue.

Just out of interest though, what does the vga=0 command do?



Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Monitor goes black at screen saver/power save and won't come back. em21701 Slackware 11 03-09-2008 05:43 PM
Monitor power save mode rehan999 Linux - Software 15 03-02-2008 11:44 PM
commands for monitor off / power save tardigrade Linux - General 2 02-13-2005 01:28 AM
monitor in power save mode upon booting kefitcher Linux - Newbie 12 03-24-2004 03:19 PM
Compaq Monitor 7500 goes in Power Save rssql Linux - Software 0 10-19-2003 07:52 AM > Forums > Linux Forums > Linux - Distributions > Red Hat

All times are GMT -5. The time now is 12:22 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration