Bug 15586 (Johnathan) - Unable to adjust backlight - Gateway M7315U
Summary: Unable to adjust backlight - Gateway M7315U
Status: CLOSED DUPLICATE of bug 15204
Alias: Johnathan
Product: ACPI
Classification: Unclassified
Component: Power-Video (show other bugs)
Hardware: All Linux
: P1 high
Assignee: Zhang Rui
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-03-19 20:01 UTC by John
Modified: 2010-04-04 00:21 UTC (History)
3 users (show)

See Also:
Kernel Version: 2.6.34-rc1
Subsystem:
Regression: No
Bisected commit-id:

Attachments
acpidump (152.22 KB, application/octet-stream)
2010-03-23 00:17 UTC, John 		Details
output of "grep . /proc/acpi/video/*/*/*" (1.81 KB, text/plain)
2010-03-23 00:18 UTC, John 		Details
dmesg (184.22 KB, text/plain)
2010-03-23 00:19 UTC, John 		Details
Add an attachment (proposed patch, testcase, etc.)

Description John 2010-03-19 20:01:46 UTC 
I own a Gateway M7315U laptop. The brightness is always set to maximum and I am unable to adjust it with the function keys. The laptop claims to have an "Intel Cantiga Express" chipset. I run slackware-13.0.

John Tsentsi
Comment 1 Zhang Rui 2010-03-22 08:06:09 UTC 
please attach the acpidump of your laptop.
please attach the output of "grep . /proc/acpi/video/*/*/*"
please attach the full dmesg output after boot.
Comment 2 John 2010-03-23 00:17:25 UTC 
Created attachment 25646 [details]
acpidump
Comment 3 John 2010-03-23 00:18:39 UTC 
Created attachment 25647 [details]
output of "grep . /proc/acpi/video/*/*/*"
Comment 4 John 2010-03-23 00:19:32 UTC 
Created attachment 25648 [details]
dmesg
Comment 5 John 2010-03-23 00:29:41 UTC 
Hi Zhang,

attached =)

Thank you for your time,
John


(In reply to comment #1)
> please attach the acpidump of your laptop.
> please attach the output of "grep . /proc/acpi/video/*/*/*"
> please attach the full dmesg output after boot.
Comment 6 Zhang Rui 2010-03-23 02:39:30 UTC 
can you change the backlight by poking /sys/class/backlight/acpi_video0/brightness?
Comment 7 John 2010-03-23 03:41:33 UTC 
I have just tried changing the brightness by poking /sys/class/backlight/acpi_video0/brightness , no luck.

(In reply to comment #6)
> can you change the backlight by poking
> /sys/class/backlight/acpi_video0/brightness?
Comment 8 Zhang Rui 2010-03-23 06:32:05 UTC 
This is a duplicate of bug #15204.
let's work on this problem in that bug report.

*** This bug has been marked as a duplicate of bug 15204 ***
Note You need to log in before you can comment on or make changes to this bug.