https://bugzilla.novell.com/show_bug.cgi?id=432809
User jakub007@go2.pl added comment
https://bugzilla.novell.com/show_bug.cgi?id=432809#c3
--- Comment #3 from Jakub Jozwicki
Have you or has this patch been posted upstream? Discussing patches in bugzilla is ugly, best would be you post that upstream (lkml and acpi-linux) and CC me.
Hello, For me sending my own patches to lkml doesn't have a sense. Long time ago I had sent patches for enabling UDMA100 on Asus A6K and Acer Aspire 3680 and these patches were ignored. I had filled bug report in SuSE bugzilla and the same patches signed by SuSE people were accepted. If you are not top committer you are ignored. I had the same bad experience with patches fixing -rt kernel.
Jakub, I am very interested in this one. I always was sure C1 is entered on these (should be hlt instruction >if no other C-states are found?).
You may want to mail me privately, adding Joachim from AMD if you do >not
Let's assume this kind of situation: Laptop manufacturer knows that Turion X2 or mobile Athlon X2 supports C1(e). He doesn't add _CST and FADT entries in DSDT, since C1 is always supported on any CPU (in the theory). Now if you look at processor_idle.c : acpi_processor_get_power_info you see that: a) if there is no _CST we return from _get_power_info_cst with error and enter _get_power_info_dsdt b) if P_BLK address is zero we return from _get_power_info_dsdt with error and exit with error the whole _get_power_info function without marking that C1 is supported. If normal idle function is the same as C1 handling then mine patch doesn't have any sense (except enabling visibility of C1 in Powertop). From the other side I have checked with Windows Driver Kit for Vista and pwrtest.exe that my CPU on Windows Server 2008 uses C1 above 90% of the time while reading slashdot or osnews and battery life is above 3 hours. The same activity on OpenSUSE 11.0, 11.1 beta2 - battery lives 1h 40 min. The are no miracles - either W2K8 has some marvelous power management or power management in linux is broken. like to post that on lkml and linux-acpi directly. I've been trying to ask tech.support@amd.com for some technical help, but I was told that 'Linux is not officially supported'... -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.