Bug 216605

Summary: A ThinkPad W530 exhibits high idle power
Product: ACPI Reporter: Karl Mistelberger (karl.mistelberger)
Component: Power-FanAssignee: acpi_power-fan
Status: NEW ---    
Severity: normal CC: hmh, regressions, tiwai, uwe.scheffer
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 6.0.1-1.1 Subsystem:
Regression: Yes Bisected commit-id:
Attachments: acpi journal - thinkpad_acpi blacklisted
acpi journal - thinkpad_acpi loaded
full dmesg thinkpad_acpi loaded
full dmesg thinkpad_acpi blacklisted
dmesg kernel 5-3-18

Description Karl Mistelberger 2022-10-19 06:20:57 UTC

    
Comment 1 Karl Mistelberger 2022-10-19 06:36:15 UTC
Idle power of kernel 6.0.1-1.1 is 35 Watt. Previous kernels have 18 Watt. Blacklisting thinkpad_acpi results in normal idle power of 18 Watt of kernel 6.0.1-1.1.
Comment 2 Takashi Iwai 2022-10-19 08:01:04 UTC
The original report in openSUSE bugzilla:
  https://bugzilla.opensuse.org/show_bug.cgi?id=1203404
Comment 3 Takashi Iwai 2022-10-19 08:05:09 UTC
Karl, which kernel version did *not* exhibit the behavior?  5.19.x kernel worked fine, and 6.0.x started showing the problem?
Comment 4 Takashi Iwai 2022-10-19 08:05:50 UTC
Also provide the more hardware details and dmesg outputs from both working and non-working cases.
Comment 5 Karl Mistelberger 2022-10-19 08:42:13 UTC
Created attachment 303034 [details]
acpi journal - thinkpad_acpi  blacklisted
Comment 6 Karl Mistelberger 2022-10-19 08:50:37 UTC
Created attachment 303035 [details]
acpi journal - thinkpad_acpi  loaded
Comment 7 Takashi Iwai 2022-10-19 09:03:55 UTC
I meant rather the case with the older good-working kernel (and thinkpad_acpi loaded).  And, give the full dmesg outputs.
Comment 8 Karl Mistelberger 2022-10-19 11:07:13 UTC
Created attachment 303037 [details]
full dmesg thinkpad_acpi loaded
Comment 9 Karl Mistelberger 2022-10-19 11:08:19 UTC
Created attachment 303038 [details]
full dmesg thinkpad_acpi blacklisted
Comment 10 Karl Mistelberger 2022-10-19 11:38:09 UTC
Created attachment 303040 [details]
dmesg kernel 5-3-18
Comment 11 Takashi Iwai 2022-10-19 11:54:53 UTC
You need to identify which is the last working kernel version.  Not that old openSUSE/SLE kernel.  That said, check 5.19.y, 5.18.y, etc, to figure out which kernel started regression.