KDE hangs on boot [Solved]

[momiji2]

I have just freshly installed Sabayon X KDE AMD64- this worked fine - I liked Sabayon +KDE so much I wanted to do a fresh install for a fresh start.
I then updated with Rigo, this went fine too. All freshly installed and fully updated.

On rebooting the system seems to boot normally (booting 70% is the last message I see) hang just before the login screen.
Cursor at top left of screen on blue design with 'sabayon' at bottom centre of sreen.

I am scratching my head here, I'd be grateful for any suggestions.

[Ryuno-Ki]

Usually you have the chance to press Alt+F1 or F2 while booting Sabayon.
Does this provide any information (e.g. where does it stop?)

[momiji2]

Thankyou, F2 gives
I am pressing of the Pause/Break button really fast here

last few steps are:

Setting up kdm
INIT: Entering runlevel 3
starting syslog-ng
starting ufw

and then instead of flipping to the 'hang screen' this time it puts me to the console (I think that is what it is) a text login which I am able to do

[momiji2]

I have captured a few more steps

the steps continue to:
Running cpufreq-set --governor ondemand
Starting cupsd
Starting mdadm monitor
(possibly another step or two but too fast for me right now)

then to console login

[Ryuno-Ki]

then to console login

Black screen with blinking white underscore?
Yes, that's a console.

In case you can login … some logs would be nice. uhm,

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$ dmesg | pastebunz
$ cat /var/log/Xorg.0.log | pastebunz
$ cat .xsession-errors


Otherwise, what happens if you run

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startx
/etc/init.d/xdm restart

?

[momiji2]

.xsession-errors is enormous - perhaps a clue here?

startx gives: (last lines of /var/log/Xorg.0.log are the same)
Fatal server error:
no screens found
Server terminated with error (1) closing log file
xinit: giving up
xinit: unable to connect to X server: Connection refused
xinit: server error

/etc/init.d/xdm.restart - goes straight to what I now think is the console background, but with the cursor blinking in top left corner. No input possible.

Have not been able to reliably get to the console prompt, most often it is just a blank cursor with no input available
This is what I have at the moment

[dave_64]

When you get to that "cursor blinking in the top left corner", you should be able to get to the console with a key combo of alt + f1 or alt+f2. Then you can log in.
What is your video card?

[Ryuno-Ki]

[…]you should be able to get to the console with a key combo of alt + f1 or alt+f2.[…]

Don't forget Ctrl -> Ctrl+Alt+F1 (or F2 or … or F6).

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$ cat .xsession-errors | tail -N 10  # displays the last N=10 lines of .xsession-errors

Of course your file is huge now - you have tried logging in several times

[Ryuno-Ki]

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Fatal server error:
no screens found
Server terminated with error (1) closing log file
xinit: giving up
xinit: unable to connect to X server: Connection refused
xinit: server error

*Codeboxes added*
I searched a bit (have a look here). We need some more information:

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# lspci | grep VGA
$ lsmod | grep nvidia | pastebunz
$ cat /etc/X11/xorg.conf | pastebunz # after you tried to run startx

It could be a driver conflict (e.g. between nv and nvidia and nouveau and KMS).

[momiji2]

Video card is ATI RV350 [Radeon X1600]
- got this info from hardinfo - have set up a dual boot with Fedora 18, this is working fine.

I will reboot into Sabayon to find the other info