11.04 won't restart or shutdown

[Russty of Oz]

Can you press Esc or Space at the logo screen and if any text appears, re-produce it here?

Nope, can't get any text to appear

[sikander3786]

We need to know where it gets stuck during the shutdown process and for that, we need to edit the /etc/default/grub file.

gksudo gedit /etc/default/grub

Find this line.

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

Delete the words quiet splash so the line looks like

GRUB_CMDLINE_LINUX_DEFAULT=""

Save and close and run this command in Terminal.

sudo update-grub

Reboot. You'll still see the Ubuntu Logo Screen. Hard Reboot as it will get stuck most likely and once you see the desktop after reboot, shut it down once more. You'll not see the Logo Screen this time, instead it would be text. We need to see that text please.

[Russty of Oz]

Here is what I got:

russty-Aspire-Z5610 login: [ 10.001459][drm:drm_edid_block_valid] *ERROR* EDID
checksum is invalid, remainder is 249

[ 10.001495] [drm:drm_edid_block_valid] *ERROR* Raw EDID:
[ 10.051631] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 249

[ 10.051666] [drm:drm_edid_block_valid] *ERROR* Raw EDID:
[ 10.102154] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 249

[ 10.102192] [drm:drm_edid_block_valid] *ERROR* Raw EDID:
[ 10.152342] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 249

[ 10.152377] [drm:drm_edid_block_valid] *ERROR* Raw EDID:
[ 10.204210] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 249

[ 10.204245] [drm:drm_edid_block_valid] *ERROR* Raw EDID:
[ 10.254378] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 249

[ 10.254413] [drm:drm_edid_block_valid] *ERROR* Raw EDID:
[ 10.304571] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 249

[ 10.304608] [drm:drm_edid_block_valid] *ERROR* Raw EDID:
[ 10.354756] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 249

[ 10.354791] [drm:drm_edid_block_valid] *ERROR* Raw EDID:

[sikander3786]

Ok. Try putting in some boot parameters like acpi=off, noapic etc.

Edit your /etc/default/grub and type acpi=off in between the quotes here.

GRUB_CMDLINE_LINUX_DEFAULT=""

Update Grub.

sudo update-grub

Reboot and see if it makes a difference. Otherwise replace acpi=off with noapic and again update grub and reboot.

[Karpah]

I've had this problem since alpha 1 of Natty. Mine gets all the way to 'Powering down' before just hanging. The fans on the laptop go nuts, and I have to hard shutdown.

[KegHead]

Hi!

Just curious if you could try a fresh reinstall?

If so, back up your files.

KegHead

[Russty of Oz]

Ok. Try putting in some boot parameters like acpi=off, noapic etc.

Edit your /etc/default/grub and type acpi=off in between the quotes here.

GRUB_CMDLINE_LINUX_DEFAULT=""

Update Grub.

sudo update-grub

Reboot and see if it makes a difference. Otherwise replace acpi=off with noapic and again update grub and reboot.

Have tried both of those and still no change.

I have done several fresh installs, now including ubuntu alternative cd and even Kubuntu, but I have the same problem with all of them. It would seem that this computer doesn't like Ubuntu!
I have installed 11.04 on an old computer and although Unity doesn't work, it runs well using Ubuntu Classic. So there isn't anything wrong with the files I am using, just the compatibility of the Acer Z5610 and Ubuntu. Looks like it is time to give up and just leave 7 on that machine. It's a pity, the new Unity looks good and the touch screen also worked on it.

[sikander3786]

Looks like a bug with the Kernel. Might be some patches in a few days sort the issue for you. Why not post a bug at Launchpad.

[Karpah]

It's been on launchpad for a while now.... lemme dig up the issue.

https://bugs.launchpad.net/ubuntu/+bug/766272

[Russty of Oz]

OK, but I think it is possibility more to do with the hardware than with Ubuntu.

Thanks for all your help.

Russty