Cant run or boot Ubuntu!

Asked by Menace

When i boot from the DVD i get the menu and everything, but when I try runnig ubuntu my screen turns black and my computer frezez!

I can install Ubuntu, but when i run it, the problem apears again!

I actually tried installing Mandriva Free......Guess what....Same problem!

Is it something with my hardware and linux in general??
Something needed to be turned on or off in BIOS??

HELP ME!!! its driving me mad!

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maxim(Feng Liu) (feng.liu) said :

are you using nvidia graphic card? My best bet is that ubuntu misrecognized your video card
and installed wrong driver. The consequence is that the xserver could not start your
windows manager with wrong driver type. If this is the case, your log file should be now
filled with error messages. If you could startup text console, goto directory "/var/log/Xorg.0.log"
to check them out.

however there are several posts here maybe related to your problem, you could refer to those posts.



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Menace (ice-fnuck) said :

Now i have installed Ubuntu on my hard drive with the GRUB boot menu....EVerything works accept when i launch ubuntu....My screen goes black and nothing happends!

I found out that i cant actually start ubuntu by launcing in recovery mode and typing "sudo /etc/init.d/gdm start" !!!! Whats going on!!?

When im logged in im not online....And I cant enter my network setup....Tho I typed my password it says access denied!

Now im really confused!

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Menace (ice-fnuck) said :

But maby your right...It could have something to do with my graphics driver it shows an error in ubuntu.....Cant update it cause im not online in recoverymode or whatever......But im not using nvidia....I have a ATI Radeon X800XL on an ASUS P5WD2 Premium motherboard...

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maxim(Feng Liu) (feng.liu) said :

what are those error messages in the log file?

well, you dont have to be online to get everything updated(anyway, you should get it up and running first and fine tuning comes later), instead you could always edit /etc/X11/xorg.conf file to use generic driver and reduce conf to minimal to see if it works.

Section "Device"
 identifier "Default Device"
 driver "nvidia"

Section "Monitor"
 identifier "Default Monitor"
 HorizSync 31.0-75.0
 VertRefresh 59
 gamma 0.76

Section "Screen"
 Identifier "Default Screen"
 Device "Default Device"
 Monitor "Default Monitor"
 DefaultDepth 24
 Option "Nologo" "true"
 Option "RenderAccel" "true"
 Option "UseEvents" "true"
 Option "ConnectedMonitor" "dfp, crt, tv"
 Option "UseDisplayDevice" "dfp"
 SubSection "Display"
  Depth 24
  Modes "1400x1050" "1280x1024" "1280x960" "1024x768" "800x600"
"640x512" "640x480" "512x384" "400x300" "320x240"

Section "ServerLayout"
 Identifier "Default Layout"
 Screen "Default Screen" 0 0
 InputDevice "Generic Keyboard"
 InputDevice "Configured Mouse"
to avoid some reiteration, please refer to the posts above for some further details.


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Menace (ice-fnuck) said :

Hmmmm...Im still pretty lost...What do you want me to do exacly?

Can it be the setup....I cant even boot from the CD.....I can only install it....And run it in recovery mode.....

Where should I look for the error messages???? What logfile????

Revision history for this message
maxim(Feng Liu) (feng.liu) said :

in recovery mode, you have access to /etc/X11 directory (yes, also in recovery mode).
There should be a file named xorg.conf.
the error log file regarding Xorg exists in /var/log/
read that file with your favorite editor, change screen section to use generic device driver
like "screen "section i posted in my last post. try to start system again to see if it could start.


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