On Mon, Jul 29, 2013 at 3:17 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote: > On Monday, July 29, 2013 02:20:58 PM Felipe Contreras wrote: >> Since v3.7 the acpi backlight driver doesn't work at all on this machine >> because presumably the ACPI code contains stub code when Windows 8 OSI is >> reported. >> >> The commit ea45ea7 (in v3.11-rc2) tried to fix this problem by using the intel >> backlight driver, however, on this machine it turns the backlight completely >> off when it reaches level 0%, after which the user might have a lot trouble >> trying to bring it back. >> >> This patch fixes both regressions by blacklisting the win8 OSI, so we are back >> to v3.6 behavior, and it should remain that way until the intel backlight >> driver is fixed. > > Well, it really is a workaround, so perhaps it would be fair to call it this > way? Maybe, but to me, and to most users, the important thing is that it fixes a regression. >> Since v3.7, users have been forced to fix the initial regression by modifying >> the boot arguments [1]. >> >> [1] https://wiki.archlinux.org/index.php/ASUS_Zenbook_Prime_UX31A >> >> Signed-off-by: Felipe Contreras <felipe.contreras@xxxxxxxxx> > > I don't really feel this is the right approach, but then I don't care enough > to fight with you. :-) It's not the right approach, I don't think I (or anybody) argued otherwise, but unless the Intel driver is fixed before 3.11, it's the only sane approach. -- Felipe Contreras -- 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
