Hello,

im new here and read the rules, im posting in this forum because i dont know if its a Driver, Desktop (x11) or Hardware issue.

First of all i am using RedHeat Enterprise Linux 5 with x11 7.6, Intel Integrated GFX and gnome. I started the Machine after 2Months, it boots normal, i can see Grub and and how it loads all VNC clients & Networkconfig. As soon as i should see the Login Screen ( askign for User & PW ) the scrren keeps being Black and my Display begins to scan its ports, so it looks like the Machine lost its Display connection.

The PC im using has a DVI, VGA & HDMI Port all integrated GFX. I've tryed to check if the Problem is on all Ports, DVI & VGA didnt work, so i testet HDMI and it worked for 1 time, after a reboot same Problem with HDMI connection. I also tryed to reconfig X11, it boots in a blue screen and tells me that X11 could not start a Server because of an Error and asked me to auto configure it, i run the autoconfig and the same thing as before happens, black screen.

I tryed to restor the old config, strg+alt+backspace, strg+alt+f1 nothing works for me.

The only thing that works is, when i boot to singleuser mode or init3 ( if i make a "3" behind the grub boot line ) and starting X with the command "startx" or "xinit". But if i change anything like resolution, press strg+alt+f1, strg+alt+backspace, or try to restart it not working again.

Any suggsestions? ( X11 log enclosed )

Edit://

had to post the log on snipt because its too long
x11 log

Try booting with "nomodeset" and "video=800x600@60" or something equivalent to your monitors dimensions on the grub kernel line - I used to have a monitor that could not handle anything faster than 60 mhz and it would freeze to black esp when X started from grub.

It looks like your X log goes awry shortly after it tests 75 mhz.