Hi Colin, The _CST are not located in DSDT but in a SSDT. Maybe I can get a machine and send you a screenshot if I can get a Sandy Bridge - probably need to install a Windows because some utilities only run on Windows :(
Any idea whom I can borrow a Sandy bridge system from? On Thu, 2011-08-25 at 13:34 +0000, Colin King wrote: > @Alex, > > So I've scanned a bunch of machines and some have P_LVL2_LAT and > P_LVL3_LAT defined as non supporting C2/C3 and the DSDT does not contain > a _CST. Some newer CPUs such a Sandybridge are configured like this > and the Intel idle driver figures out the number of C states from the > CPU id rather than trusting the firmware provided data (be it existent > or not). > > So.. perhaps I could phrase the warning something like: > > "FADT P_LVL2_LAT is 101, a value > 100 indicates that the C2 state is > not defined in the FADT. C states either defined in the _CST object or > determined by the kernel from the CPU id." > > ** Changed in: fwts (Ubuntu) > Status: In Progress => Incomplete > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/833644 Title: C state capability support check fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fwts/+bug/833644/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
