Comment 48 for bug 447892

In data mercoledì 18 novembre 2009 20:19:43, hai scritto:
> Thank you for testing. I also have no idea why KMS and ACPI seem to be
> related. Just thought it would be nice to know for the upstream
> developers if turning off ACPI helped. If it doesn't work, it doesn't
> work.
>
> Actually, if you back out of xorg-edgers and back to standard Karmic,
> you should be able to run without KMS, since UMS support was dropped
> only after the driver in Karmic. You can use the ppa-purge script for
> that (`sudo apt-get intall ppa-purge` will pull it from the
> xorg-edgers PPA, and running `sudo ppa-purge xorg-edgers` will remove
> everything from xorg-edgers exept ppa-purge itself). Now with standard
> Karmic drivers (and both with Karmic kernel and mainline kernel)
> - check if it still freezes with the kernel option "nomodeset" [*]
> - check if it still freezes with the kernel option "acpi=off"
> It may be that acpi=off turns off KMS and that is the reason it helps,
> but if it freezes with nomodeset and not with acpi=off, that would be
> interesting.
>
> I think the "low graphics mode" problem you are having may be one of
> the bugs mentioned in this post:
> https://lists.ubuntu.com/archives/ubuntu-x/2009-November/000650.html
> (the ones about gdm).
>
> [*] I looked if you had already done this, but at least I couldn't
> find it. It is in situations like this it is really not helpful to
> have other people reporting what they have tried. Makes it harder to
> find what you did.
>

My experience is that I been able to install kubuntu 9.10 only with acpi=off
and nolapic kernel option at start up. The installation have been complete
without error but at the firt start up the screen freeze near after complete
log in. The laptop is an Asus M2400N with 1.4Ghz of first generation Centrino.
If I use option acpi=off the computer don't freeze but I can't use without ac
plugged in and the wireless dousen't work. Now I'm use 9.04 that did take me
some problem with the graphic card but after some new line in the xorg.conf
the problem seems to be solve. I'm very anhappy to see that free sotware don't
take forward step.
I'm sorry for my bad english and if I can help the comunity just say me what I
have to do.
Best regards.
 Andrea Vico