No loginscreen after upgrade from 9.10 to 10.04

[marquivon]

Hi - were you able to figure out the problem? I've spent all day doing it without any luck. I just bought a new server with Intel rmm3, and thought that I'll keep that in the data center and do all the installation etc. remotely.

However, in the initial testing that I'm doing, I'm not able to even get past the installation screen. I earlier tried vga=789 and other modes - these worked with Ubuntu 8.04, but not with 10.04 (probably because it is grub2). I tried to boot with Ubuntu 32bit Desktop, and it did show the "green" screen briefly, but then showed the Ubuntu desktop just fine.

[gartoffel]

Hi - were you able to figure out the problem?

Hi marquivon and Magnus1234

No, sorry. Even though we spent several days trying to fix this issue, the problem persists.
Funny thing is, that if you attach a display directly, everything works fine. I need to point out, that when connecting via RMM3, we can see the bootup process up to a certain extend and then, the screen goes black. But there has to be a solution somewhere...

Anybody?

[Magnus1234]

Hi,

Is there any news about this problem?
I have tried to modify some grub settings however it does not help.

I think it should solve in server version somehow. Other case we have to replace Ubuntu with Debian.

[hedermisi]

Hello!

We had the same problem with an intel server equipped with console module. Setting kernel parameters like vga= did not help.
Just as in the op's case the directly connected screen worked, but we saw a blank screen after a few seconds on the virtual console software.

However the fact that it went away only in the middle of the booting process give us a clue. We figured out that the cause of the problem is the loading of the vga16fb module.

So we added these lines into /etc/modprobe.d/blacklist-framebuffer.conf:

blacklist vga16fb
blacklist vgastate (but maybe this line is unnecessary)

and the problem went away.

Hope this helps someone!
Cheers!