Bug 9515 - Brightness button does not work anymore - Toshiba Satellite A100
Summary: Brightness button does not work anymore - Toshiba Satellite A100
Status: CLOSED PATCH_ALREADY_AVAILABLE
Alias: None
Product: ACPI
Classification: Unclassified
Component: Other (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Alexey Starikovskiy
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2007-12-07 03:41 UTC by Aymeric "Wedge" Roynette
Modified: 2008-01-10 19:15 UTC (History)
2 users (show)

See Also:
Kernel Version: 2.6.23.*
Subsystem:
Regression: Yes
Bisected commit-id:

Attachments
dmesg log from kernel 2.6.24-rc4 (27.06 KB, text/plain)
2007-12-09 23:26 UTC, Aymeric "Wedge" Roynette 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Aymeric "Wedge" Roynette 2007-12-07 03:41:41 UTC 
Most recent kernel where this bug did not occur: 2.6.22.*
Distribution: Slackware -current
Hardware Environment: laptop, Toshiba Satellite A100

Problem Description: 
The brightness button (combo Fn+F6 and Fn+F7) does not work anymore since I upgraded to kernel (home made configuration) 2.6.23.* (lastest 2.6.23.9, vanilla).
No acpi log message when pushing the button ... (there was a message with 2.6.22)
As the 2.6.22 worked fine, I seeked in the acpi source and found that this was the file ec.c that didn't worked as it was supposed to.
Recompiled the 2.6.23 with the ec.c file from the 2.6.22 -> brightness button is back and working.

Thanks in advance
Comment 1 Andrew Morton 2007-12-07 03:56:55 UTC 
I think Alexey worked on that..
Comment 2 Alexey Starikovskiy 2007-12-07 06:06:36 UTC 
Could you please check if 24-rc4 is still broken?
Please post dmesg, acpidump outputs.
Comment 3 Aymeric "Wedge" Roynette 2007-12-09 23:26:33 UTC 
Created attachment 13934 [details]
dmesg log from kernel 2.6.24-rc4
Comment 4 Aymeric "Wedge" Roynette 2007-12-09 23:27:24 UTC 
(In reply to comment #2)

Hi !

> Could you please check if 24-rc4 is still broken?

24-rc4 works fine, brightness button is back and working, thank you !

> Please post dmesg, acpidump outputs.

dmesg has been added as attachment.
Comment 5 Alexey Starikovskiy 2007-12-10 01:08:58 UTC 
Thanks for testing
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