blank screen on boot

HeikoAdams · #1 3rd October 2010, 11:58 AM

Hi Folks,
I've got a strange problem with my Fedora 14: Sometimes when I boot my machine the screen stays blank but when shut down and reboot the normal boot screen is shown.

Any hints how to solve this?

CSchwangler · #2 3rd October 2010, 04:09 PM

When the screen remains blank, can you still get to a virtual console (Ctrl-Alt-F2)? Did you already look into /var/log/messages and /var/log/Xorg.0.log after the screen stayed blank?
As always, some more info about the hardware you are using could be helpful in order to diagnose the problem.

HeikoAdams · #3 3rd October 2010, 05:39 PM

There is no chance to get a virtual console on the blank screen.

If it helps, my smolt profile is: http://www.smolts.org/client/show/pu...d-1ff52222d4be

Carification: The boot process runs normal everytime until plymouth starts. From that point one time the screen leaves blank and next time everything works fine.

CSchwangler · #4 4th October 2010, 07:51 AM

Have you already tried the workarounds from the common bugs section of the F13 Release Notes (I know you are using F14 but it may be worth trying)?

http://fedoraproject.org/wiki/Common...hical_problems

HeikoAdams · #5 4th October 2010, 07:56 PM

Okay, after playing around with the kernel parameters it seems that

Code:

vga=0x361

was the source of all evil

Vector · #6 5th October 2010, 11:04 PM

I had the same problem, but solved it by removing "nouveau.modeset=0" from the kernel/boot parameters. The funny thing is, before, if i did not use this arg, then i could get a GUI. Now, if i DO use it, i can't get a GUI, AND, lol, my desktop is finally displaying everything in the correct proportions (it was stretched wide when using that arg).

FWIW, another funny thing is that i keep loosing my wireless connection to my router. Not sure if it's related...

CSchwangler · #7 6th October 2010, 07:04 AM

I don't think that nouveau.modeset is related to your wireless problems, since nouveau.modeset is for kernel mode setting of the graphics card.

http://fedoraproject.org/wiki/Featur...eauModesetting

cgrim · #8 6th October 2010, 08:27 AM

I had blank screen today and it casued xorg-x11-server v1.9.0-12. With new version 1.9.0-13 it is OK.

Vector · #9 6th October 2010, 12:29 PM

Quote:

Originally Posted by CSchwangler

I don't think that nouveau.modeset is related to your wireless problems, since nouveau.modeset is for kernel mode setting of the graphics card.

http://fedoraproject.org/wiki/Featur...eauModesetting

Oh, i'm quite sure that it didn't. I was just rambling a bit, and thought that i'd mention that as well, even though it had nothing to do with this thread. I tend to do that sometimes, sorry

.

**AdamW** · #10 6th October 2010, 06:42 PM

vector: with that parameter you would have been getting the vesa driver rather than nouveau. nouveau (and intel) will no longer work at all with modesetting disabled, they simply refuse to load and X falls back to vesa.

Vector · #11 6th October 2010, 09:51 PM

Yeah, i figured that it either affected the WAY the nouveau driver works, or disables it completely.

So that would suggest that the bug is in the vesa drivers, since enabling nouveau made X work again (where it had to be DISABLED for X to work prior to this incident)?

Thanks.