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[solved] pbbuttonsd breakage with kernel 2.6.18?
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timotheus25
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PostPosted: Sat Sep 23, 2006 2:41 pm    Post subject: [solved] pbbuttonsd breakage with kernel 2.6.18? Reply with quote

I've upgraded to Linux kernel 2.6.18 and am having some strange issues with pbbuttonsd and the LCD backlight.

  • to manage LCD backlight, a new kernel option must be enabled
    Code:

    CONFIG_FB_RADEON_BACKLIGHT=y

    without this option, pbbuttonsd cannot change the backlight level
  • changing the LCD backlight to max or min brightness with shift-brightness-key does not work anymore
  • pbbuttonsd does not know the state of the LCD backlight
    Code:

    # pbbcmd query TAG_LCDBRIGHTNESS
    -1



EDIT: should mention that I have tried both pbbuttonsd versions: 0.7.5, 0.7.8

Anyone else experiencing this?
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Last edited by timotheus25 on Sat Sep 23, 2006 4:03 pm; edited 1 time in total
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bz31
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Joined: 20 Apr 2005
Posts: 108

PostPosted: Sat Sep 23, 2006 3:10 pm    Post subject: Reply with quote

CONFIG_PMAC_BACKLIGHT_LEGACY=y
Quote:
CONFIG_PMAC_BACKLIGHT_LEGACY:
Say Y if you want to enable legacy ioctl's on /dev/pmu. This is for
programs which use this old interface. New and updated programs
should use the backlight classes in sysfs.
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timotheus25
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PostPosted: Sat Sep 23, 2006 4:03 pm    Post subject: Reply with quote

Thanks, that worked.
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timotheus25
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PostPosted: Fri Oct 06, 2006 3:29 pm    Post subject: Reply with quote

A new version of pbbuttonsd (0.7.9) was released that makes uses of the new sysfs LCD backlight interface. It is in portage.
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