85 lines
2.7 KiB
Diff
85 lines
2.7 KiB
Diff
|
From: Hans de Goede <hdegoede@redhat.com>
|
||
|
|
Date: Tue, 3 Mar 2015 08:31:24 +0100
|
||
|
|
Subject: [PATCH] acpi: video: Add force native backlight quirk for Lenovo
|
||
|
|
Ideapad Z570
|
||
|
|
|
||
|
|
The Lenovo Ideapad Z570 (which is an Acer in disguise like some other Ideapads)
|
||
|
|
has a broken acpi_video interface, this was fixed in commmit a11d342fb8
|
||
|
|
("ACPI / video: force vendor backlight on Lenovo Ideapad Z570").
|
||
|
|
|
||
|
|
Which stops acpi_video from registering a backlight interface, but this is
|
||
|
|
only a partial fix, because for people who have the ideapad-laptop module
|
||
|
|
installed that module will now register a backlight interface, which also
|
||
|
|
does not work, so we need to use the native intel_backlight interface.
|
||
|
|
|
||
|
|
The Lenovo Ideapad 570 is a pre-win8 laptop / too old for the acpi-video code
|
||
|
|
to automatically prefer the native backlight interface, so add a quirk for it.
|
||
|
|
|
||
|
|
This commit also removes the previous incomplete fix.
|
||
|
|
|
||
|
|
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1187004
|
||
|
|
Cc: Stepan Bujnak <stepanbujnak@fastmail.fm>
|
||
|
|
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
|
||
|
|
---
|
||
|
|
drivers/acpi/video.c | 17 +++++++++++++++++
|
||
|
|
drivers/acpi/video_detect.c | 8 --------
|
||
|
|
2 files changed, 17 insertions(+), 8 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
|
||
|
|
index 70ea37bea84f..d9bf8ba7d848 100644
|
||
|
|
--- a/drivers/acpi/video.c
|
||
|
|
+++ b/drivers/acpi/video.c
|
||
|
|
@@ -425,6 +425,12 @@ static int __init video_disable_native_backlight(const struct dmi_system_id *d)
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
+static int __init video_enable_native_backlight(const struct dmi_system_id *d)
|
||
|
|
+{
|
||
|
|
+ use_native_backlight_dmi = NATIVE_BACKLIGHT_ON;
|
||
|
|
+ return 0;
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
static struct dmi_system_id video_dmi_table[] __initdata = {
|
||
|
|
/*
|
||
|
|
* Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121
|
||
|
|
@@ -566,6 +572,17 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
|
||
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "XPS L521X"),
|
||
|
|
},
|
||
|
|
},
|
||
|
|
+
|
||
|
|
+ /* Non win8 machines which need native backlight nevertheless */
|
||
|
|
+ {
|
||
|
|
+ /* https://bugzilla.redhat.com/show_bug.cgi?id=1187004 */
|
||
|
|
+ .callback = video_enable_native_backlight,
|
||
|
|
+ .ident = "Lenovo Ideapad Z570",
|
||
|
|
+ .matches = {
|
||
|
|
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
|
||
|
|
+ DMI_MATCH(DMI_PRODUCT_NAME, "102434U"),
|
||
|
|
+ },
|
||
|
|
+ },
|
||
|
|
{}
|
||
|
|
};
|
||
|
|
|
||
|
|
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
|
||
|
|
index 27c43499977a..c42feb2bacd0 100644
|
||
|
|
--- a/drivers/acpi/video_detect.c
|
||
|
|
+++ b/drivers/acpi/video_detect.c
|
||
|
|
@@ -174,14 +174,6 @@ static struct dmi_system_id video_detect_dmi_table[] = {
|
||
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5737"),
|
||
|
|
},
|
||
|
|
},
|
||
|
|
- {
|
||
|
|
- .callback = video_detect_force_vendor,
|
||
|
|
- .ident = "Lenovo IdeaPad Z570",
|
||
|
|
- .matches = {
|
||
|
|
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
|
||
|
|
- DMI_MATCH(DMI_PRODUCT_VERSION, "Ideapad Z570"),
|
||
|
|
- },
|
||
|
|
- },
|
||
|
|
{ },
|
||
|
|
};
|
||
|
|
|
||
|
|
--
|
||
|
|
2.1.0
|
||
|
|
|