bbswitch on fails - optirun hangs with 100% cpu usage about bumblebee

[andaag]

I shutdown the laptop and removed the power, then booted it up again and bbswitch works again. But there's something going on here atleast.

[Lekensteyn]

I think that the nvidia driver decided to load itself, half-enabling the nvidia card, but causing a kernel error later. Could you pastebin your /var/log/syslog?
Removing the power resets the hardware and ACPI state, so such issues with ACPI are likely fixed with this.

[andaag]

I've been trying to reproduce this, but I haven't been able to. Feel free to close this, and I'll reopen if/when I can reproduce and attach a syslog.

[andaag]

Ran into this again

echo "OFF" > /proc/acpi/bbswitch

• this returns instantly, but bbswitch still says it's on. The nvidia driver is not loaded.

cat /proc/acpi/bbswitch returns 0000:01:00.0 ON

syslog here : https://gist.github.com/61c5aaf75fb96cdcf6f0