segfault when changing brightness

[Jochen Schroeder]

Binary package hint: xfce4-power-manager

Bug description:

When I start my laptop usually the screen brightness is set to minimum. I have xfce4-power-manager running in e17. However trying to increase the screen brightness using the function keys fails.
Running xfce4-power-manager --no-daemon in a terminal gives the following output:

(xfce4-power-manager:2106): xfce4-power-manager-WARNING **: could not map keysym 1008ffa8 to keycode

and pressing one of the brightness function keys results in a segfault
.
However after setting the brightness manually via: echo 7 >/sys/class/backlight/sony/brightness
xfce4-power-manager works fine and setting the brightness works.

Backtrace attached.

[Charlie Kravetz (cjkgeek)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please answer these questions:
1) The release of Xubuntu you are using, via 'lsb_release -rd' or System.
2) The version of the package you are using, via 'apt-cache policy packagename' or by checking in Synaptic.

[Jochen Schroeder (cyco)]

Sorry, somehow forgot to include that. I'm on Ubuntu Karmic 64bit.

$lsb_release -rd
Description: Ubuntu 9.10
Release: 9.10

$apt-cache policy xfce4-power-manager
xfce4-power-manager:
  Installed: 0.8.4-1ubuntu1
  Candidate: 0.8.4-1ubuntu1
  Version table:
 *** 0.8.4-1ubuntu1 0
        500 http://au.archive.ubuntu.com karmic/universe Packages
        100 /var/lib/dpkg/status

[Charlie Kravetz (cjkgeek)]

Thanks for reporting this bug and any supporting documentation. Since this bug has enough information provided for a developer to begin work, I'm going to mark it as confirmed and let them handle it from here. Thanks for taking the time to make Xubuntu better!

[Charlie Kravetz (cjkgeek)]

Thank you for your bug report. This bug has been reported to the developers of the software. You can track it and make comments at: http://bugzilla.xfce.org/show_bug.cgi?id=6194

[Charlie Kravetz (cjkgeek)]

Please read the developers comments on the xfce bugzilla, they need some information. Thanks

[Charlie Kravetz (cjkgeek)]

We'd like to figure out what's causing this bug for you, but we haven't heard back from you in a while. Could you please provide the requested information? Have you tried the patch the Xfce developer requested? Is this still broken for you? Thanks!

[Jochen Schroeder (cyco)]

Hi,

sorry for the late reply on this, somehow I missed the update on the bug. I've attached the information to the xfce bugzilla entry.

[Lionel Le Folgoc (mrpouit)]

No segfault anymore, and the patch is already in lucid.

[Jochen Schroeder (cyco)]

The brightness buttons are still not working correctly though. So do I open a new bug report or should this bug report be left open?

[Lionel Le Folgoc (mrpouit)]

This is a slightly different issue, so I think you should open a new bug, it'll be clearer (btw, you can open it directly on bugzilla.xfce.org if you have an account, opening one on launchpad isn't mandatory in this case).