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ACPI: OSI: Remove Linux-Lenovo-NV-HDMI-Audio _OSI string
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This string was introduced because drivers for NVIDIA hardware
didn't handle HDMI properly.

This was fixed by commit b516ea5 ("PCI: Enable NVIDIA HDA
controllers"), so vendors shouldn't be using this string to modify
ASL any more.

Suggested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Mario Limonciello authored and Rafael J. Wysocki committed Aug 25, 2022
1 parent 2486751 commit 7c3ad60
Showing 1 changed file with 0 additions and 8 deletions.
8 changes: 0 additions & 8 deletions drivers/acpi/osi.c
Original file line number Diff line number Diff line change
Expand Up @@ -44,14 +44,6 @@ osi_setup_entries[OSI_STRING_ENTRIES_MAX] __initdata = {
{"Processor Device", true},
{"3.0 _SCP Extensions", true},
{"Processor Aggregator Device", true},
/*
* Linux-Lenovo-NV-HDMI-Audio is used by BIOS to power on NVidia's HDMI
* audio device which is turned off for power-saving in Windows OS.
* This power management feature observed on some Lenovo Thinkpad
* systems which will not be able to output audio via HDMI without
* a BIOS workaround.
*/
{"Linux-Lenovo-NV-HDMI-Audio", true},
/*
* Linux-HPI-Hybrid-Graphics is used by BIOS to enable dGPU to
* output video directly to external monitors on HP Inc. mobile
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