hi, Nico, do you have an external graphics card as well as the integrated intel graphics on your laptops? please attach the dmesg and lspci output. thanks, rui On Sat, 2009-02-14 at 02:05 +0800, Len Brown wrote: > > > When using > > > - vmlinuz-2.6.29-rc4-ikn-00058-g4c098bc or > > > - vmlinuz-2.6.29-rc4-ikn-00211-g37bed90 > > > > > > the brightness of the LCD is almost off (lowest level), > > > although kernel reports otherwise: > > > > > > [10:31] ikn:~% cat /proc/acpi/video/VID/LCD0/brightness > > > levels: 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 100 > > > current: 100 > > > > > > Changing the brightness via echo 20 > /proc/acpi/video/VID/LCD0/brightness > > > only changes the value displayed, the display always keeps the same > > > brightness. > > > > > > The last time I saw it working was vmlinuz-2.6.29-rc4-ikn-00001-gd5b5623. > > Nico, > there are not a lot of changes between rc4 and the breakage, > (and none of them jump out at me) can you git-bisect? > > thanks, > Len Brown, Intel Open Source Technology Center > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-acpi" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
