Messages in this thread Patch in this message |  | | | From | Keng-Yu Lin <> | | Subject | [PATCH 1/2] ideapad-laptop: Ignore an unused VPC notification | | Date | Tue, 28 Jun 2011 14:35:53 +0100 |
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BIOS fires notifications in a constant period with VPC bit 1 set when the power cord is unplugged.
This event is not known yet to have any effect, but it makes the call to sparse_keymap_report_event() and generates many KEY_UNKNOWNs.
This causes the userspace (Gnome Power Manager in my case) unable to enter the idle mode. As the result there is no screensaver showing up, no dim backlight, etc.
Signed-off-by: Keng-Yu Lin <kengyu@canonical.com> --- drivers/platform/x86/ideapad-laptop.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index bfdda33..820f013 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -463,7 +463,8 @@ static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event) ideapad_sync_rfk_state(adevice); else if (vpc_bit == 4) read_ec_data(handle, 0x12, &vpc2); - else + else if (vpc_bit == 1) { + } else ideapad_input_report(priv, vpc_bit); } } -- 1.7.4.1
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