14.04 beta1 cannot shutdown (acpi=off must be passed)

[cielavenir]

I tried to install UbuntuGNOME 14.04 beta1 ( http://cdimage.ubuntu.com/ubuntu-gno.../14.04/beta-1/ ) amd64 to AMD A8-6500 + MSI A78M-E35 machine.
I needed to pass acpi=off to the kernel, which means the machine reboots even I perform "shutdown".
Also, GRUB halt command hangs up the machine.

Ubuntu 13.10 doesn't have this issue at all. I hope the issue will be fixed.
I was a Debian testing user for 5 years, so I welcome upcoming rolling release!

[cielavenir]

I have updated to 14.04 beta2 by apt-get, but my machine still randomly reboots without acpi=off.
13.10 unetbootin usb doesn't have this issue at all.
I hope this is fixed soon (before final release).

[pqwoerituytrueiwoq]

does it happen if you use the 3.14 kernel?
http://kernel.ubuntu.com/~kernel-ppa....14-rc8-trusty
if you need help installing it, use the attached script

[cielavenir]

does it happen if you use the 3.14 kernel?
http://kernel.ubuntu.com/~kernel-ppa....14-rc8-trusty
if you need help installing it, use the attached script

Thank you so much. But my machine still reboots as soon as X is started (random between 0sec to 5sec)...

[cielavenir]

On the other hand,

WHERE="http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12.15-trusty"
VER_A="3.12.15-031215"
VER_B="201403260835"
VER_C="$(uname -r | sed 's/-generic//')"

worked like a charm. Thank you for the script very much.
Although I shouldn't be satisfied with that, there is still time for final release

[pqwoerituytrueiwoq]

that script i made from the output of another script i made
https://github.com/GM-Script-Writer-...Kernel-Updater
it is a PHP script that makes a Bash script

KernelUpdateChecker -r trusty -v 3.12

have you filed a kernel bug report - https://bugzilla.kernel.org/
this seems like a upstream issue
the 3.12 kernel is a long term support, so that script will keep you upto date for a while
https://www.kernel.org/

[cielavenir]

Thank you, but it seems they are not reading my report.
It is possible that it is because of lacking log.
But... How should I debug?

I'm sure the bug is lying in AML interpreter itself.

[pqwoerituytrueiwoq]

last bug i reported took over a month for them to get to, so don't hold your breath

[cielavenir]

I was told to do git bisect, but I don't know how to combine it with dpkg stuff...

[Edit]
After careful searching, I have found this thread:
https://bbs.archlinux.org/viewtopic.php?id=178307
And passing radeon.dpm=0 magically solved the issue.
Although the upstream issue must be solved, but I can safely use Ubuntu at least...