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Slackware 14 hangs when restarting (Dell Latitude 6520)

Hi all, I installed Slackware 14 on a Dell Latitude 6520, and everything seems to work fine except for restarting.

Code:

shutdown -h now

works fine, but

Code:

shutdown -r now

does not.

The system seems to shut everything down as expected, but it hangs after "Restarting system":

Code:

Broadcast message from root@euler (tty1) (Mon Aug 5 13:34:44 2013):



The system is going down for reboot NOW!

INIT: Switching to runlevel: 6

Sending processes the TERM signal

INIT: Sending processes the KILL signal

Saving system time to the hardware clock (localtime).

AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1. Set the 'ServerName' directive globally to suppress this message

httpd: no process found

Stopping system message bus...

Unmounting remote filesystems.

Stopping udevd

Sending all processes the SIGTERM signal.

Sending all processes the SIGKILL signal.

Saving random seed from /dev/urandom in /etc/random-seed.

Turning off swap.

Unmounting local file systems.

tmpfs has been unmounted

/dev/sda2 has been unmounted

Remounting root filesystem read-only.

/dev/sda2 on / type ext4 (ro)

Rebooting.

[  94.846228] Restarting system.

Google suggested that adding the reboot kernel parameter in lilo.conf can resolve this issue. I tried "apm", "acpi", "bios" and "force", same result.

I've also seen some suggest that using the apm kernel module instead of apci can help, but it appears that apm isn't installed in my kernel. So, before I compile a new kernel I thought I'd double check here. Any other suggestions?

Also, if I do need to compile a new kernel, what's the best way to get the source code? I decided not to include it in the initial install (because, hey, I've never needed it before!). Can I download it via slackpkg, or should I just download the same version from kernel.org?

Thanks!

Your computer may needs reboot quirks. Try to use a newer kernel, or use magic sysrq to reboot at the end of /etc/rc.d/rc.6

Code:

echo b > /proc/sysrq-trigger

Had an acer aspire one that did that, not sure of your problem, but appending reboot=efi to my lilo.conf fixed it. Like I said this fixed my issue, not sure if your dell is having the same issue. According to http://intosimple.blogspot.com/2012/...with-arch.html you can fix it with reboot=pci

Quote:

Originally Posted by guanx (Post 5003573)

use magic sysrq to reboot at the end of /etc/rc.d/rc.6

Code:

echo b > /proc/sysrq-trigger

Thanks for the suggestion. Unfortunately, this did not work.

Quote:

Originally Posted by genhappyok (Post 5003745)

I'm pretty sure I tried efi and pci, not sure why I didn't say so in my original post. I'll try again over the weekend, just in case.