Distribution: Ubuntu 8.04 Checked with kernels: 2.6.24-16, also reproduced with 2.6.25 Hardware Environment: HP Pavilion dv2765tx, Core 2 Duo T5750, firmware f.26 (also reproduced with f.25, f.21) Problem Description: acpi_cpufreq can't start ("No such device") errors in dmesg, during boot. [ 17.045653] ACPI Warning (tbutils-0217): Incorrect checksum in table [SSDT] - E6, should be 38 [20070126] [ 19.458760] ACPI Error (psargs-0355): [TS0T] Namespace lookup failure, AE_NOT_FOUND [ 19.458765] ACPI Error (psparse-0537): Method parse/execution failed [\_PR_.CPU0._PDC] (Node f7c51b88), AE_NOT_FOUND [ 19.459076] ACPI: CPU0 (power states: C1[C1] C2[C2] C3[C3]) [ 19.459641] ACPI Error (psargs-0355): [\_PR_.CPU0._PPC] Namespace lookup failure, AE_NOT_FOUND [ 19.459645] ACPI Error (psparse-0537): Method parse/execution failed [\_PR_.CPU1._PPC] (Node f7ccf180), AE_NOT_FOUND [ 19.459895] ACPI Error (psargs-0355): [\_PR_.CPU0._CST] Namespace lookup failure, AE_NOT_FOUND [ 19.459899] ACPI Error (psparse-0537): Method parse/execution failed [\_PR_.CPU1._CST] (Node f7ccf1f8), AE_NOT_FOUND [ 210.947531] ACPI Error (psargs-0355): [\_PR_.CPU0._PSS] Namespace lookup failure, AE_NOT_FOUND [ 210.947538] ACPI Error (psparse-0537): Method parse/execution failed [\_PR_.CPU1._PSS] (Node f7c51dc8), AE_NOT_FOUND [ 210.947572] ACPI Exception (processor_perflib-0234): AE_NOT_FOUND, Evaluating _PSS [20070126] [ 5939.117215] ACPI Error (psargs-0355): [\_PR_.CPU0._PSS] Namespace lookup failure, AE_NOT_FOUND [ 5939.117222] ACPI Error (psparse-0537): Method parse/execution failed [\_PR_.CPU1._PSS] (Node f7c51dc8), AE_NOT_FOUND [ 5939.117256] ACPI Exception (processor_perflib-0234): AE_NOT_FOUND, Evaluating _PSS [20070126] Steps to reproduce: boot
Created attachment 15873 [details] acpidump $acpidump
Created attachment 15874 [details] dmesg
Created attachment 15875 [details] .config this config is for 2.6.25, which has the same problem
Created attachment 15876 [details] lspci
Created attachment 15877 [details] cpuinfo
Created attachment 15878 [details] try the custom DSDT Will you please try the custom DSDT and see whether the problem still exists? How to use custom DSDT can be found in http://www.lesswatts.org/projects/acpi/faq.php Thanks.
looks a duplicate of bug 10311. Yakui & lingming, can you try if windows can handle such issue? *** This bug has been marked as a duplicate of bug 10311 ***
I've tried custom dsdt proposed by ykzhao. It fixes problem with C-states. acpi_cpufreq starts well and works. some warnings during boot: [ 20.563969] ACPI: Table DSDT replaced by host OS [ 20.563972] ACPI: DSDT 00000000, A386 (r2 INTEL CRESTLNE 6040000 INTL 20061109) [ 20.563976] ACPI: DSDT override uses original SSDTs unless "acpi_no_auto_ssdt"ACPI Error (dswload-0334): [SSDT] Namespace lookup failure, AE_ALREADY_EXISTS [ 20.566370] ACPI Exception (psloop-0225): AE_ALREADY_EXISTS, During name lookup/catalog [20070126] [ 20.972265] ACPI Warning (tbutils-0217): Incorrect checksum in table [SSDT] - E6, should be 38 [20070126]
Just want to add that HP fixed these problems (incorrect checksum and missing dsdt's method) with firmware F.2A from 2008-04-08.