Bug 334781

Summary:	ACPI brightness keys broken in kernel 2.6.23-6
Product:	[Fedora] Fedora	Reporter:	Danny Baumann <dannybaumann>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	low
Version:	8	CC:	katzj
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:	2.6.23.9-85.fc8	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-12-20 19:56:18 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Danny Baumann 2007-10-16 16:47:15 UTC

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; de; rv:1.8.1.5) Gecko/20070718 Fedora/2.0.0.5-1.fc7 Firefox/2.0.0.5

Description of problem:
In Fedora8 test3, I can't no longer use the brightness adjust keys of my Toshiba Satellite Pro A100 laptop. Instead of being recognized as brightness change keys, Fn+F6/7 are recognized as regular F6/7 keys.
This used to work fine with Fedora7's kernel 2.6.22.9-91 kernel.
Adjusting the brightness itself (via writing to /proc/acpi/video/VGA/LCD/brightness) works fine, though.

Version-Release number of selected component (if applicable):


How reproducible:
Always


Steps to Reproduce:
1. Grab a Toshiba Satellite Pro A100 laptop
2. Press Fn+F6/7
3.

Actual Results:
Key code for F6 is entered (tilde appears in the console).

Expected Results:
Brightness of the LCD is changed.

Additional info:

Comment 1 Jeremy Katz 2007-10-16 18:09:52 UTC

Is there anything in dmesg about unrecognized key scancodes?

Comment 2 Danny Baumann 2007-10-16 18:25:53 UTC

(In reply to comment #1)
> Is there anything in dmesg about unrecognized key scancodes?

No, there isn't.
As mentioned above, the Fn+F6/7 keys emit the normal F6/7 keycodes (64/65) in
the 2.6.23 kernel; in the 2.6.22 kernel they don't emit any user-visible keycode.

Comment 3 Danny Baumann 2007-11-01 09:11:42 UTC

Upstream bug report: http://bugzilla.kernel.org/show_bug.cgi?id=9262
Comment #10 contains a patch that's working fine and is supposed to be non-invasive.

Comment 4 Danny Baumann 2007-11-02 14:45:04 UTC

FYI: There is another, somewhat related, upstream bug report:
http://bugzilla.kernel.org/show_bug.cgi?id=9277.
The patch in this bug fixes weird flickering with brightness-applet and
gnome-power-manager being unable to set the brightness above 35% on Toshiba laptops.

Comment 5 Chuck Ebbert 2007-12-07 00:38:07 UTC

 (In reply to comment #3)
> Upstream bug report: http://bugzilla.kernel.org/show_bug.cgi?id=9262
> Comment #10 contains a patch that's working fine and is supposed to be
non-invasive.

Final fix in CVS, in kernels after -80

Comment 6 Fedora Update System 2007-12-12 20:00:03 UTC

kernel-2.6.23.9-85.fc8 has been pushed to the Fedora 8 testing repository.  If problems still persist, please make note of it in this bug report.
 If you want to test the update, you can install it with 
 su -c 'yum --enablerepo=updates-testing update kernel'

Comment 7 Fedora Update System 2007-12-20 19:56:06 UTC

kernel-2.6.23.9-85.fc8 has been pushed to the Fedora 8 stable repository.  If problems still persist, please make note of it in this bug report.