Daniel Kulesz via coreboot wrote: > my X60 supports C4 although it also seems to consume way too much power.
That platform has at least one significant power saving issue open, which I think is no longer too well understood by the active folks. It also involves power saving states, but I don't know exactly what it is. Daniel Kulesz via coreboot wrote: > I .. wonder why I didn't read or hear about any complaints about > running Libreboot/Coreboot on a X200 I guess that anyone who retrofits open source firmware feels that the advantages outweigh such problems. The X60 runs much hotter with coreboot than with vendor BIOS. Some of that can probably be attributed to coreboot being worse at power saving, but there are still differences under full load. I would not be at all surprised if one reason is that the vendor BIOS aritificially restricts the performance in order to meet thermal design requirements. In other words: I can very easily imagine that robust operation and good-looking mechanical design was more important for the vendor than getting top performance out of CPU+chipset and that they implemented this policy in the BIOS, but coreboot doesn't, because noone in coreboot knows what the appropriate thresholds are. This is an intrinsic problem for anything that is retrofitted. //Peter -- coreboot mailing list: [email protected] https://www.coreboot.org/mailman/listinfo/coreboot
