Bug 204581

Summary:	amd ryzen mobile 3550H battery drains
Product:	Platform Specific/Hardware	Reporter:	Alberto (albertogomezmarin)
Component:	x86-64	Assignee:	platform_x86_64 (platform_x86_64)
Status:	NEW ---
Severity:	high	CC:	albertogomezmarin, david, djip.perois, postix
Priority:	P1
Hardware:	x86-64
OS:	Linux
Kernel Version:	5.1/2/3	Subsystem:
Regression:	No	Bisected commit-id:

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