It seems that the Arch Linux people found a solution to this problem before Michael:
![Stick Out Tongue](https://www.phoronix.com/forums/core/images/smilies/tongue.png)
For me, a BIOS update actually made things worse on my laptop (HP dv6-3210us, RadeonHD42x0). Now, even with the force flag, I get the dreaded:
Code:
[ 0.142500] Unable to assume _OSC PCIe control. Disabling ASPM
Comment