On 12/19/2014 09:46 AM, Aaron Lu wrote: > CC Jani, who is working on the patchset to enable 8+ output devices and > may have some comments on this. Change Jani's email address, I got a warning from the mailer about his other email address. > > 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
