Red Hat Bugzilla – Bug 628274
Unable to set display brightness on Asus EEE PC 1201N-PU17
Last modified: 2011-06-28 09:47:04 EDT
Description of problem: The brightness keys (Fn-F5 and Fn-F6) on my ASUS EEE PC 1201N-PU17 seem to be recognized, and under gnome they cause the display brightness popup to be displayed, but pressing them does not cause the screen brightness to change. Version-Release number of selected component (if applicable): kernel-2.6.34.3-37.fc13.i686 booted with args: acpi_osi=Linux elevator=deadline How reproducible: Steps to Reproduce: 1. Press Fn-F5 2. 3. Actual results: Display brightness popup appears, but thermometer in it does not move. Screen does not dim. Expected results: Display should dim. Additional info: # lsmod | grep eee eeepc_wmi 2719 0 eeepc_laptop 12367 0 sparse_keymap 2485 2 eeepc_wmi,eeepc_laptop wmi 5624 1 eeepc_wmi rfkill 13433 3 eeepc_laptop,cfg80211,bluetooth The dim button is being detected: # lshal -m Start monitoring devicelist: ------------------------------------------------- 22:36:33.530: computer_logicaldev_input_0 condition ButtonPressed = brightness-down Neither of the following dims the screen: # echo 0 > /sys/class/backlight/acpi_video0/brightness # echo 0 > /sys/class/backlight/nv_backlight/brightness My apologies if this is filed under the wrong module. I'm not sure what else to try or provide, but I am open to suggestions.
# lspci | grep VGA 05:00.0 VGA compatible controller: nVidia Corporation ION VGA [GeForce 9400M] (rev b1)
Workaround: install non-free kmod-nvidia-260.19.21-1.fc13.1.i686 The display brightness thermometer no longer pops up, but at least the brightness is controllable. I occasionally have to factory-reset the bios settings in order for boot to work.
This message is a reminder that Fedora 13 is nearing its end of life. Approximately 30 (thirty) days from now Fedora will stop maintaining and issuing updates for Fedora 13. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as WONTFIX if it remains open with a Fedora 'version' of '13'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version prior to Fedora 13's end of life. Bug Reporter: Thank you for reporting this issue and we are sorry that we may not be able to fix it before Fedora 13 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora please change the 'version' of this bug to the applicable version. If you are unable to change the version, please add a comment here and someone will do it for you. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. The process we are following is described here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
Fedora 13 changed to end-of-life (EOL) status on 2011-06-25. Fedora 13 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.