Messages in this thread | | | From | Joost Pjotr Vermeer <> | Date | Wed, 27 Apr 2011 22:45:11 +0200 | Subject | Re: backlight control broken on Sony VGN-P21Z with staging/gma500 |
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Hi,
2011/4/13 Joost Pjotr Vermeer <jp@df5ea.net>: > I tried the new gma500 driver from staging on my Sony VGN-P21Z. It > seems to work very nice. > > But backlight control does not work. It has worked with a previous > version of the staging/gma500 driver. I can solve it by removing the > call to acpi_video_register() from psb_driver_load() in psb_drv.c.
I retried using 2.6.39-rc4 and now I have two backlight devices:
- /sys/class/backlight/acpi_video0 and; - /sys/class/backlight/psb-bl
The psb-bl one works, the acpi_video0 one does not.
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