Dual monitor setup quit working with recent update ?

Linuxguy123 linuxguy123 at gmail.com
Mon Sep 14 12:50:34 UTC 2009

On Sun, 2009-09-13 at 19:36 -0600, Linuxguy123 wrote:
> On Sun, 2009-09-13 at 19:50 -0500, Michael Cronenworth wrote:
> > On 09/13/2009 07:39 PM, Linuxguy123 wrote:
> > > Further to my last email, I can now only run a graphical session with my
> > > 2.6.30 kernel.   All the others fail to start the x session.
> > >    
> > 
> > You can thank your RPMFusion packages for that. The kmod system is very 
> > bad, but they refuse to use any other method despite my suggestions. I'd 
> > point you to my personal repo with DKMS RPMs but I'd hate to have all 
> > nVidia users start using it and my repo run out of bandwidth. Good luck!
> I am happy to report that I got my dual monitors working.  I don't know
> what exactly did it, but here is what I did.
> I suspected that the laptop display was not working due to a power
> management issue, ie the screen was dimmed too dim to view.   I
> suspected this because I have seen this happen after the laptop comes
> back from a suspend event. 
> So... I went into KDEStart->Settings->System Settings -> Advanced ->
> Power Management-> Edit Profiles -> Screen.  
> I then disabled "Enable display power management" on each of the
> profiles, saving them as I went.
> The I logged out of my KDE session and logged back in.   The laptop
> monitor was then functional. 
> I'm not certain that power management was the issue, but this sequence
> of changes fixed my issue. 

I'm unhappy to further report that my dual monitors only work after I
log out and log back in after rebooting.

When I boot up my laptop monitor doesn't display anything.  My desktop
is displayed on my external monitor.  If my external monitor isn't
connected then I don't have any display at all !  

I am hoping this gets fixed before the weekend as I have to take my
laptop on the road on Saturday morning.

However, if I log into a KDE session and then log out and log in again,
my laptop monitor comes to life.  Someone forgot to initialize something
somewhere ?


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