Bug#485465: thinkpad-acpi EC/NVRAM brightness sync errors
On Sun, Jun 22, 2008 at 11:43:00 -0300, Henrique de Moraes Holschuh wrote:
> > (I never tried kde, etc. so blaming it all on "xdm" for now, as that's
> > how I invoke X windows, and I don't want to get tangled up in the
>
> It is probably something else than xdm doing the nasty, though.
>
Right, xdm has absolutely nothing to do with this.
> > Also stepping outside X with CTRL-ALT F1 (to tty1) turns brightness
> > back up, which remains up when one steps back with ALT F7 or CTRL-ALT F7.
>
> Whatever THIS is, is not thinkpad-acpi's fault. This clearly means either
> something is calling xbacklight, OR the x.org video driver itself is doing
> stuff that is confusing your thinkpad backlight firmware.
>
The video driver uses the sysfs interface to change the backlight on
vt switch, afaik.
Cheers,
Julien
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