* Thomas Halva Labella <hlabella@ulb.ac.be> [2005-07-28 10:31:02 +0200]: > A. F. Cano wrote: > > >The question is (I think), how to turn off the backlight via software? > >This might be an issue of bad firmware (Dell firmware is notoriously > >linux-unfriendly, not to say buggy) and/or bad ACPI support in same, > >in which case there might not be an easy solution. Anyone have a > >non-firmware-patch fix for this? > > > In the version 2.6.12 of the kernel, there is module to control the LCD > backlight (option CONFIG_BACKLIGHT_LCD_SUPPORT). The default in Debian > is not to compile it. > > I tried to recompile the kernel and load the module lcd.ko, but nothing > changed. Am I missing some other step? > > Halva Hi Halva, the lcd module is not the backlight module. The module managing backlight is named backlight. ;) marc@stiffy:~$ lsmod | egrep "backlight|lcd" backlight 5632 0 lcd 5504 0 marc@stiffy:~$ modinfo lcd filename: /lib/modules/2.6.13-rc3marc/kernel/drivers/video/backlight/lcd.ko license: GPL author: Jamey Hicks <jamey.hicks@hp.com>, Andrew Zabolotny <zap@homelink.ru> description: LCD Lowlevel Control Abstraction vermagic: 2.6.13-rc3marc preempt PENTIUM4 gcc-4.0 depends: srcversion: AAD8CEEFA606C2E60CEED56 marc@stiffy:~$ modinfo backlight filename: /lib/modules/2.6.13-rc3marc/kernel/drivers/video/backlight/backlight.ko license: GPL author: Jamey Hicks <jamey.hicks@hp.com>, Andrew Zabolotny <zap@homelink.ru> description: Backlight Lowlevel Control Abstraction vermagic: 2.6.13-rc3marc preempt PENTIUM4 gcc-4.0 depends: srcversion: 00C461844F501546C5E6E9D marc@stiffy:~$ Regards, Marc
Attachment:
signature.asc
Description: Digital signature