Black screen upon starting up Kubuntu

Keith Clark keithclark at
Thu Mar 11 02:44:51 UTC 2010

On Wed, 2010-03-10 at 23:09 -0300, Marcelo Magno T. Sales wrote:
> Em Quarta-feira 10 Março 2010, Alan Dacey Sr. escreveu:
> > On Wednesday 10 March 2010 08:14:56 pm Keith Clark wrote:
> > > I have an up to date installation of Ubuntu/Kubuntu 10.04 Alpha 3
> > > and I cannot seem to start up Kubuntu.  It starts, I see the
> > > initial startup screen, it fades to a black background.  Akonadi
> > > starts up fine but turns black right after that.  I can hit Alt-F2
> > > and the command window pops up.  I can hit ctl-alt-del and the
> > > logout window pops up fine but I cannot do much else as I cannot
> > > see any menu bars or backgrounds.
> > >
> > > Any help would be appreciated.
> > >
> > > Keith
> > 
> > I tried installing a fresh 10.04 A3 and had a similar problem.  I
> >  just drop to tty 2 and can't use the gui at all, tty 7 seems to be
> >  forbidden.  No amount of changing/purging/tweaking the nvidia
> >  drivers help at all.  I also can't get to boot from the cd on a
> >  stick, although that may be my motherboard.  I also installed the
> >  first 10.04 beta in a separate partition and upgraded it every time
> >  I booted into it.  I can not get any composting working in that one.
> >   I have a feeling that something is still being hammered out in the
> >  video code and is not quite ready.  The only things I have not done
> >  is test with a new user and if that doesn't work then purge the
> >  entire KDE desktop, reboot, and install it again.
> > I'll be following this thread if anybody has better ideas.
> >
> I've been through a similar problem with nvidia drivers and GeForce 
> 310M. In my case, there were four problems:
> 1. The nouveau driver would always be loaded after installing the nvidia 
> proprietary driver, even if blacklisted. I had to remove it. Not 
> removing nouveau would cause the LCD to be turned off before the login 
> screen was displayed.
> 2. The nvidia driver would not properly detect my laptop's LCD panel 
> (VAIO VPCF111FB). I had to manually edit xorg.conf and force it to use 
> the LCD with the following line in the "Screen" section:
> Option "ConnectedMonitor" "DFP-0"
> 3. The nvidia driver would not read the EDID information from the LCD 
> panel, even after forcing the detection with the above line. So, I had 
> to install Windows, read EDID from there and save it to a file, which 
> then was referenced in xorg.conf with the following line:
> Option "CustomEDID" "DFP-0:/etc/X11/EDID.raw" # I named the file saved 
> in windows EDID.raw
> 4. At last, I couldn't install Kubuntu because the installation software 
> was aborting with an error right after selecting the language when using 
> The Kubuntu ISO. So, I installed Ubuntu and later installed kubuntu-
> desktop. The problem is that gdm will not work well with plymouth after 
> the installation of the nvidia driver. The login screen was displayed, 
> but if I typed "2" or ENTER the X server would die and the computer 
> would appear to be frozen (but I could still access it from the network 
> with ssh). After a little research, I found out that gdm was starting on 
> the second console before all TTY were initialized. After typing "2" or 
> ENTER, X would crash and then gdm would re-spawn on the seventh console, 
> were it would work ok, but only if nvidia driver was not installed. So, 
> I had to remove plymouth to make gdm start on the seventh console in the 
> first try. kdm do not have this problem.
> Now I have 10.04 with KDE and the nvidia driver running flawlessly, but 
> no graphical boot. 
Actually, I have and ATI card.  ATI Radeon Xpress 200M.  Works well
under Ubuntu, just not Kubuntu yet.


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