drm/amdgpu: Suppress keypresses from ACPI_VIDEO events

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commit 582f58de36 upstream.

Currently we return NOTIFY_DONE for any event which we don't think is
ours. However, many laptops will send more then just an ATIF event and
will also send an ACPI_VIDEO_NOTIFY_PROBE event as well. Since we don't
check for this, we return NOTIFY_DONE which causes a keypress for the
ACPI event to be propogated to userspace. This is the equivalent of
someone pressing the display key on a laptop every time there's a
hotplug event.

So, check for ACPI_VIDEO_NOTIFY_PROBE events and suppress keypresses
from them.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Lyude Paul 2018-09-21 20:43:44 -04:00 • committed by Greg Kroah-Hartman

parent 3f43692a69

commit c0845493a2

1 changed files with 12 additions and 5 deletions

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drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c

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