CC Jani, who is working on the patchset to enable 8+ output devices and may have some comments on this. Regards, Aaron On 12/18/2014 09:25 PM, Josh Boyer wrote: > On Thu, Dec 18, 2014 at 7:16 AM, Dmitry Tunin <hanipouspilot@xxxxxxxxx> wrote: >> Add "acpi_osi=" quirk for ASUS X200MA >> More information can be found in UX302LA bugreport >> https://bugzilla.kernel.org/show_bug.cgi?id=70241 >> >> X200MA is affected by th e same bug and the solution has been tested >> >> I reported it to launchpad too >> https://bugs.launchpad.net/ubuntu/bug/1400068 >> >> Cc: stable@xxxxxxxxxxxxxxx >> Signed-off-by: Dmitry Tunin <hanipouspilot@xxxxxxxxx> >> > > The UX301LA models have the same setup, with 16 devices instead of 8. > I discussed this with Matthew Garrett a bit and a more ideal approach > is to actually enumerate all 16 devices between the firmware and i915 > driver. The problem we have is that the intel opregion spec that > hasn't been updated since 2008 doesn't cover the additional 8 devices. > Anyway, that is being tracked here: > > https://bugs.freedesktop.org/show_bug.cgi?id=81762 > >> --- >> drivers/acpi/blacklist.c | 20 ++++++++++++++++++++ >> 1 file changed, 20 insertions(+) >> >> diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c >> index 7556e7c..f78ed08 100644 >> --- a/drivers/acpi/blacklist.c >> +++ b/drivers/acpi/blacklist.c >> @@ -162,6 +162,17 @@ static int __init dmi_disable_osi_win8(const struct >> dmi_system_id *d) >> acpi_osi_setup("!Windows 2012"); >> return 0; >> } >> +/* >> + * Some ASUS models firmware declares 16 devices instead of 8 >> + * 'acpi_osi=' kernel parameter fixes it >> + * Without this parameters brightness keys Fn+F5 and F6 do not work >> + */ >> +static int __init dmi_disable_osi_all(const struct dmi_system_id *d) >> +{ >> + printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident); >> + acpi_osi_setup(""); >> + return 0; >> +} > > What does this do to the rest of the function keys? Does everything > else still work as expected, including suspend and resume? > >> static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { >> { >> @@ -371,6 +382,15 @@ static struct dmi_system_id acpi_osi_dmi_table[] >> __initdata = { >> DMI_MATCH(DMI_PRODUCT_NAME, "1015PX"), >> }, >> }, >> + /* Without this brightness keys do not work */ >> + { >> + .callback = dmi_disable_osi_all, >> + .ident = "ASUSTeK COMPUTER INC. X200MA", >> + .matches = { >> + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), >> + DMI_MATCH(DMI_PRODUCT_NAME, "X200MA"), >> + }, >> + }, >> {} >> }; >> >> -- >> 1.9.1 >> -- >> To unsubscribe from this list: send the line "unsubscribe stable" 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
