On Mon, Aug 04, 2008 at 12:20:28PM +0200, Thomas Renninger wrote: > > But when in user mode, brightness keys doesn't do anything either. > > Echo'ing to /proc/acpi/ibm/brightness doesn't work, but echoing > > to /sys/class/backlight/thinkpad_screen/brightness works. > That /proc/acpi/ibm/brightness does not and > /sys/class/backlight/thinkpad_screen/brightness > works is strange, this should be a bug? I guess so, but I don't really know how to check. > > I wonder whether /proc/acpi/ibm/brightness can be removed soon, people had > some time to make use of the generic interface. I'm not using it usually anyway. > > What you describe very much reminds me when I tested on a ThinkPad with an IGD > device. I removed the check for IGD devices in favour of a working IGD driver. > > Attached patch might help you (with acpi_backlight=vendor)? > You should be able to apply this on my latest patchset, but use this patch > instead of the thinkpad_acpi one. Ok, will try tonight. But I remember Henrique saying my thinkpad shouldnt use thinkpad-acpi but rather video.ko for brightness management, so I'm a bit puzzled. > > Cat'ing /proc/acpi/events still gives: > > video LCD0 00000086 00000000 > > video LCD0 00000087 00000000 > > > > At one time I get the 750ms delay, but I don't have the > > ibm/hotkey HKEY 00000080 00005010 at all. > Hmm, on my machine it was 1010 and 1011 key event values for up/down > brightness. If you do not see those, the patch might not work. And I do remember that the key changed (but can't remember when). Maybe that's due to a bios upgrade. > > In X, same thing, no brightness keys, but xbacklight does work in > > standard mode (“kernel”). > > > > (btw it seems my mails don't reach linux-acpi, I don't really know why > > and postmaster don't answer, maybe they didn't have my mail either). > > I expect you have an IGD device and this should by default be served by > Matthew's/Hong's patches. Matthew said something about a needed peace > that came in in latest BIOSes? But I expect you already run on the latest? I run Bios 2.19 and EC 1.08 which are the latest available on lenovo.com. The kernel I'm testing on is a pure linux-acpi-2.6/test so i'm not sure I have Matthew's patches. Cheers, -- Yves-Alexis -- 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
