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Bug 295577

Summary: sys-kernel/vanilla-sources-2.6.32, sys-kernel/gentoo-sources-2.6.32 - ACPI: EC: input buffer is not empty, aborting transaction
Product: Gentoo Linux Reporter: Andrey Ovcharov <sudormrfhalt>
Component: [OLD] Core systemAssignee: Gentoo Linux bug wranglers <bug-wranglers>
Status: RESOLVED FIXED    
Severity: critical    
Priority: High    
Version: unspecified   
Hardware: AMD64   
OS: Linux   
Whiteboard:
Package list:
Runtime testing required: ---
Attachments: dmesg on gentoo-sources-2.6.31-r6
dmesg on gentoo-sources-2.6.32
config-vanilla-sources-2.6.32
config-gentoo-sources-2.6.32
config-gentoo-sources-2.6.31-r6
emerge --info

Description Andrey Ovcharov 2009-12-03 18:18:19 UTC
First of all kernels before 2.6.32 did not observe anything like that. 

All necessary information about my hardware is here http://ru.gentoo-wiki.com/wiki/Acer_Aspire_5730ZG

In sys-kernel/vanilla-sources-2.6.32 and sys-kernel/gentoo-sources-2.6.32 after loading the same symptoms: in the first place is not working brightness control for display; second in dmesg watch spam 

"ACPI: EC: input buffer is not empty, aborting transaction"

"ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.AMW0.WMCA] (Node ffff8800bbc3f3e0), AE_TIME
ACPI: EC: input buffer is not empty, aborting transaction
ACPI Exception: AE_TIME, Returned by Handler for [EmbeddedControl] (20090903/evregion-424)"

the third is markedly reduced performance.

the spam in dmesg is very similar to this error http://bugzilla.kernel.org/show_bug.cgi?id=13689
Comment 1 Andrey Ovcharov 2009-12-03 18:19:13 UTC
Created attachment 211888 [details]
dmesg on gentoo-sources-2.6.31-r6
Comment 2 Andrey Ovcharov 2009-12-03 18:19:41 UTC
Created attachment 211890 [details]
dmesg on gentoo-sources-2.6.32
Comment 3 Andrey Ovcharov 2009-12-03 18:22:37 UTC
Created attachment 211892 [details]
config-vanilla-sources-2.6.32
Comment 4 Andrey Ovcharov 2009-12-03 18:22:59 UTC
Created attachment 211893 [details]
config-gentoo-sources-2.6.32
Comment 5 Andrey Ovcharov 2009-12-03 18:24:29 UTC
Created attachment 211895 [details]
config-gentoo-sources-2.6.31-r6
Comment 6 Andrey Ovcharov 2009-12-03 18:25:56 UTC
Created attachment 211896 [details]
emerge --info
Comment 7 Andrey Ovcharov 2009-12-03 18:30:18 UTC
On all kernel
> cat /proc/cmdline 
BOOT_IMAGE=/boot/vmlinuz root=/dev/sda3 rootfstype=ext4 ro video=uvesafb:1280x800-32,mtrr:3,ywrap splash=silent,fadein,theme:natural_gentoo console=tty1 boot_delay=0 usb-storage.delay_use=1
Comment 8 Andrey Ovcharov 2009-12-04 14:05:20 UTC
CONFIG_PM_RUNTIME=y