On Mon, 2012-10-22 at 00:02 +0200, Alain Roger wrote:
i've just downloaded F17 and i tried to install it on my computer x86 having a nVidia 8800 GT video card. after seeing only the logo at boot process, now everything i can see is a black screen :( and the Led of my monitor is blinking so it means no video signal. is there any compatibility issue with f17 and nvidia 8800 ? thank
Sounds awfully like what I've had to deal with: GRUB running at the highest resolution that the graphics card could generate, regardless of whether the scan/refresh rates were compatible with my monitor (which it wasn't).
I don't know how you can fix that if you can't, at some stage, get to see a display. I was lucky enough that once GRUB had finally booted up an OS, the OS did run at a suitable rate, and I could edit the configuration to change GRUB's resolution.
In the /etc/default/grub file, I added this line:
GRUB_GFXMODE=800x600
Then ran the "grub2-mkconfig" command to regenerate the config file used at boot time.
If it's X, itself, running at the wrong resolution, after GRUB has handed over, and if Xorg hadn't been crippled, years ago, you could have pressed CTRL ALT + or - to change resolutions on the fly, until something worked.