Hi, > > > Ok, I played around with it some more. It seems that on my Laptop the > > > firmware sends out notifications on Fn+F6/7 press. > > > Kernel 2.6.23-rc2 worked fine, -rc3 is broken. Reverting ec.c in the > > > current Fedora kernel to the version in 2.6.23-rc2 makes brightness > > > control work again. After finding that, I tried the current HEAD version > > > of ec.c - unfortunately to no avail. > > > 2.6.23-rc3 doesn't show up the (unwanted) key events for Fn+F6/7 though > > > - this behaviour was introduced in -rc4. > > > > > > Is it possible to fix the problem with the amount of information > > > provided? If no, what additional information can I provide? > > Please check if attached patch changes situation. > > Yes, it does. With that patch, everything works as intended. > Gnome-power-manager doesn't seem to work properly with it, but that's a > different story ;-) Well, it is a different story. A fix for the gpm problem is at http://bugzilla.kernel.org/show_bug.cgi?id=9277, but the underlying problem is a different one that I need some help with: The root problem is that I get two notifications per brightness hotkey press. One is for video bus VGA, device LCD; the other one is for bus GFX0, device LCD. The LCD device on GFX0 is of type 0x400 (internal flat-panel), the one on VGA is of type 0x110 (external CRT - for backwards compatibility). So I can somehow understand why Toshiba duplicated the device in two busses, but the outcome of that is somewhat inconvenient because it halves the amount of brightness levels I have available ;-) Now my question is: Can anything be done inside the kernel against this kind of problem? I can hardly imagine that Toshiba is the only company that duplicates the LCD device for backwards compatibility (as this is even given in the example IDs in table B-3 in the ACPI spec). I thought about that for some time, but didn't come up with a good idea so far. Maybe an idea would be to prevent the inclusion of certain ACPI paths into the namespace by a kernel command line parameter? Thanks, Danny - 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
