Bug 162620 - [ata] SATA device lost when changing brightness on Lenovo L420 [regression]
Summary: [ata] SATA device lost when changing brightness on Lenovo L420 [regression]
Status: Closed Overcome By Events
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: 9.0-PRERELEASE
Hardware: Any Any
: Normal Affects Only Me
Assignee: Bugmeister
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-11-16 20:50 UTC by Sebastian Chmielewski
Modified: 2023-12-31 02:44 UTC (History)
0 users

See Also:

Attachments
acpidump_L420.gz (43.02 KB, application/x-gzip)
2013-10-14 18:46 UTC, Sebastian Chmielewski 		no flags Details
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Description Sebastian Chmielewski 2011-11-16 20:50:10 UTC 
command
sudo sysctl dev.acpi_ibm.0.lcd_brightness=3

or a sequence of two changes:
sudo sysctl dev.acpi_ibm.0.lcd_brightness=6 
sudo sysctl dev.acpi_ibm.0.lcd_brightness=3

cause device disconnect:

ahcich1: DISCONNECT requested
ahcich1: AHCI reset...
ahcich1: SATA connect timeout time=10000us status=00000000
ahcich1: AHCI reset: device not found
(ada1:ahcich1:0:0:0): lost device
(pass1:ahcich1:0:0:0): lost device
(pass1:ahcich1:0:0:0): removing device entry

This problem didn't occur on the same machine with 9.0-CURRENT (before -BETA1 I think).
Comment 1 Eitan Adler freebsd_committer freebsd_triage 2017-12-31 07:59:34 UTC 
For bugs matching the following criteria:

Status: In Progress Changed: (is less than) 2014-06-01

Reset to default assignee and clear in-progress tags.

Mail being skipped
Comment 2 Mark Linimon freebsd_committer freebsd_triage 2023-12-31 02:44:47 UTC 
^Triage: close as OBE.

I'm sorry that this PR never got looked at, but by now, 9.X is long out of support