Bug 204581 - amd ryzen mobile 3550H battery drains
Summary: amd ryzen mobile 3550H battery drains
Status: NEW
Alias: None
Product: Platform Specific/Hardware
Classification: Unclassified
Component: x86-64 (show other bugs)
Hardware: x86-64 Linux
: P1 high
Assignee: platform_x86_64@kernel-bugs.osdl.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-08-14 17:36 UTC by Alberto
Modified: 2020-01-24 10:49 UTC (History)
4 users (show)

See Also:
Kernel Version: 5.1/2/3
Subsystem:
Regression: No
Bisected commit-id:

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Description Alberto 2019-08-14 17:36:42 UTC 
Hello, my problem is that the pc, with all the tweaks enabled and all the stuff is reporting 12 W of power usage in idle while in windowss is less than a half. I think it has to be a bug or something in the c-states of the processor because is not normal, I am sure that the problem is in other ryzen mobile laptops and should be fixed in the less time posible

My laptop is asus fx505dy and have the lastest bios .
Comment 1 Alberto 2019-08-14 18:07:20 UTC 
CPUidle driver: acpi_idle
CPUidle governor: menu
analyzing CPU 0:

Number of idle states: 3
Available idle states: POLL C1 C2
POLL:
Flags/Description: CPUIDLE CORE POLL IDLE
Latency: 0
Usage: 1270
Duration: 2635
C1:
Flags/Description: ACPI FFH MWAIT 0x0
Latency: 1
Usage: 60347
Duration: 17870643
C2:
Flags/Description: ACPI IOPORT 0x414
Latency: 400
Usage: 22640
Duration: 59696920


this cpu has 5 cpu idls states I think and linux only report 3...
Comment 2 djip.perois 2019-09-06 22:43:53 UTC 
related report:
https://bugzilla.kernel.org/show_bug.cgi?id=204579
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