after upgrade to 10.04 "unknown controller version you may experience problems"

[DrScum]

Updated from 9.10 to 10.04 and experienced some problems with grub (thread #1470653).

With the forum help I could fix that but a new problem popped up. I don't know if it existed before or if it came with the fix.

After the boot menue there is an extended black screen with only cursor blinking at the upper left (approx. 15 seconds) then there is an error message saying something like "unknown controller version you may experience problems" for a very short time, a screen flicker and then the login window appears.

The reason for the extended black period might be some search process resulting in the error message. How do I diagnose something like this and how can I fix it.

[isomorph]

Exactly the same problem here. Same message, same blinking.

And during working on the PC the mouse pointer sometimes just jumps and takes some time until it is under control again.

cheers

Iso

[lotharmat]

I also get this..

I haven't managed to find anything in the logs as yet.

[DrScum]

Obviously I had the Problem before upgrading since you guys are using 9.04 and 9.10 respectively.

What hardware are you guys running? I am running a Dell Vostro 1520 and in the meantime found the following entry in the dmesg output:

[16.804351] mmc0: unknown controller version (2). You may experience problems.

The device mmc0 points to a card reader if I interpret correctly what I find on the internet.

Question to the expert: is there a connection between the extended blinking (which means waiting) and the error message or am I barking up the wrong tree here?

[lotharmat]

I'm fairly sure that's the exact (ish) message I got

Fujitsu Siemens Lifebook
x64
With SD card reader on the front - which works perfectly well

I'll try and did out the dmesg!

[lotharmat]

Found it!

[   12.765348] sdhci-pci 0000:08:03.2: SDHCI controller found [1217:7120] (rev 0)
[   12.765376] sdhci-pci 0000:08:03.2: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[   12.765414] mmc0: Unknown controller version (16). You may experience problems.
[   12.765533] Registered led device: mmc0::
[   12.765581] mmc0: SDHCI controller on PCI [0000:08:03.2] using PIO

[isomorph]

I am using ubuntu 10.04 on a Dell Vostro 1520.

dmsg goes like:
6
[ 17.647258] mmc0: Unknown controller version (2). You may experience problems

cheers

Iso