Messages in this thread | | | Date | Thu, 16 Jul 2009 08:16:42 +0200 | From | Tobias Diedrich <> | Subject | Re: 2.6.31-rc2: thinkpad boots with backlight low |
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Henrique de Moraes Holschuh wrote: > And that will, of course, cause the driver to set the brightness in NVRAM to > zero (but it *should* do so for shutdown as well, not just machine-restart. > You may have uncovered two bugs, not just one), which will be honoured by > the BIOS on the next reboot/power up.
I does set it to zero (or whatever was last written to the sysfs or /proc/acpi/ibm file) on shutdown and reboot, so no bug there.
> > I assume that the autodetection finds the HBRV acpi function and > > selects the former, resulting in a not working backlight control. > > Yes. > > Please send me by private mail the output of acpidump and dmidecode (so that > I will have them both in the same place). I will blacklist your thinkpad to > force TPACPI_BRGHT_MODE_UCMS_STEP.
Done.
-- Tobias PGP: http://9ac7e0bc.uguu.de
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