Comment 418 for bug 312756

Hello.

I have a Asus Eee PC 1015PN. I run Ubuntu 10.10, 32 bit. Here is the file DSDT.dsl. I created this file when I used the ION nvidia chip.

On the site

https://wiki.ubuntu.com/HardwareSupport/Machines/Netbooks#Asus%20Eee%20PC%201015PN

a procedure is described using your ACPI stuff. I have tried this and everything worked fine (reboot, optimus was visible, etc.). I attached also a DSDT_ION+Optimus.dsl file with both graphic cards switched on.

However, I couldn't deactivate the nvidia chip at the end via the command

echo "\_SB.PCI0.P0P4.DGPU.DOFF" > /proc/acpi/call

The system was frozen after 30 seconds. Has somebody an explanation? Thanks in advance.