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I have been getting errors like this when pluggin or removing AC to my laptop.
Nov 22 18:33:17 arch-laptop kernel: ata2.00: exception Emask 0x10 SAct 0x8000 SErr 0x50000 action 0xe frozen
Nov 22 18:33:17 arch-laptop kernel: ata2.00: irq_stat 0x00400000, PHY RDY changed
Nov 22 18:33:17 arch-laptop kernel: ata2: SError: { PHYRdyChg CommWake }
Nov 22 18:33:17 arch-laptop kernel: ata2.00: failed command: READ FPDMA QUEUED
Nov 22 18:33:17 arch-laptop kernel: ata2.00: cmd 60/08:78:38:0f:d1/00:00:00:00:00/40 tag 15 ncq 4096 in
res 50/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x10 (ATA bus error)
Nov 22 18:33:17 arch-laptop kernel: ata2.00: status: { DRDY }
Nov 22 18:33:17 arch-laptop kernel: ata2: hard resetting link
Nov 22 18:33:18 arch-laptop kernel: ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Nov 22 18:33:18 arch-laptop kernel: ata2.00: configured for UDMA/133
Nov 22 18:33:18 arch-laptop kernel: ata2: EH complete
The solution that I have come up with is to change the setting for CONTROL_INTEL_SATA_POWER in /etc/laptop-mode/conf.d/intel-sata-powermgmt.conf as follows...
# Control Intel SATA chipset power management?
# Set to 0 to disable
CONTROL_INTEL_SATA_POWER="0"
Changing this setting stops the error from occurring.
I am curious is anyone else has run into this?
This is on a Lenovo U530 Ideapad laptop.
Last edited by MikeW (2014-11-24 05:05:36)
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