From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Werner Sembach <wse@tuxedocomputers.com>,
"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Subject: [PATCH 5.4 24/29] ACPI: video: Force backlight native for Clevo NL5xRU and NL5xNU
Date: Fri, 25 Mar 2022 16:05:04 +0100 [thread overview]
Message-ID: <20220325150419.281560868@linuxfoundation.org> (raw)
In-Reply-To: <20220325150418.585286754@linuxfoundation.org>
From: Werner Sembach <wse@tuxedocomputers.com>
commit c844d22fe0c0b37dc809adbdde6ceb6462c43acf upstream.
Clevo NL5xRU and NL5xNU/TUXEDO Aura 15 Gen1 and Gen2 have both a working
native and video interface. However the default detection mechanism first
registers the video interface before unregistering it again and switching
to the native interface during boot. This results in a dangling SBIOS
request for backlight change for some reason, causing the backlight to
switch to ~2% once per boot on the first power cord connect or disconnect
event. Setting the native interface explicitly circumvents this buggy
behaviour by avoiding the unregistering process.
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/acpi/video_detect.c | 75 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 75 insertions(+)
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -372,6 +372,81 @@ static const struct dmi_system_id video_
DMI_MATCH(DMI_BOARD_NAME, "BA51_MV"),
},
},
+ /*
+ * Clevo NL5xRU and NL5xNU/TUXEDO Aura 15 Gen1 and Gen2 have both a
+ * working native and video interface. However the default detection
+ * mechanism first registers the video interface before unregistering
+ * it again and switching to the native interface during boot. This
+ * results in a dangling SBIOS request for backlight change for some
+ * reason, causing the backlight to switch to ~2% once per boot on the
+ * first power cord connect or disconnect event. Setting the native
+ * interface explicitly circumvents this buggy behaviour, by avoiding
+ * the unregistering process.
+ */
+ {
+ .callback = video_detect_force_native,
+ .ident = "Clevo NL5xRU",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"),
+ DMI_MATCH(DMI_BOARD_NAME, "NL5xRU"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "Clevo NL5xRU",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SchenkerTechnologiesGmbH"),
+ DMI_MATCH(DMI_BOARD_NAME, "NL5xRU"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "Clevo NL5xRU",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
+ DMI_MATCH(DMI_BOARD_NAME, "NL5xRU"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "Clevo NL5xRU",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"),
+ DMI_MATCH(DMI_BOARD_NAME, "AURA1501"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "Clevo NL5xRU",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"),
+ DMI_MATCH(DMI_BOARD_NAME, "EDUBOOK1502"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "Clevo NL5xNU",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"),
+ DMI_MATCH(DMI_BOARD_NAME, "NL5xNU"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "Clevo NL5xNU",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SchenkerTechnologiesGmbH"),
+ DMI_MATCH(DMI_BOARD_NAME, "NL5xNU"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "Clevo NL5xNU",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
+ DMI_MATCH(DMI_BOARD_NAME, "NL5xNU"),
+ },
+ },
/*
* Desktops which falsely report a backlight and which our heuristics
next prev parent reply other threads:[~2022-03-25 15:14 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-25 15:04 [PATCH 5.4 00/29] 5.4.188-rc1 review Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 01/29] nfsd: cleanup nfsd_file_lru_dispose() Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 02/29] nfsd: Containerise filecache laundrette Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 03/29] nfc: st21nfca: Fix potential buffer overflows in EVT_TRANSACTION Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 04/29] net: ipv6: fix skb_over_panic in __ip6_append_data Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 05/29] esp: Fix possible buffer overflow in ESP transformation Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 06/29] tpm: Fix error handling in async work Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 07/29] staging: fbtft: fb_st7789v: reset display before initialization Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 08/29] thermal: int340x: fix memory leak in int3400_notify() Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 09/29] llc: fix netdevice reference leaks in llc_ui_bind() Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 10/29] swiotlb: fix info leak with DMA_FROM_DEVICE Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 11/29] swiotlb: rework "fix info leak with DMA_FROM_DEVICE" Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 12/29] ALSA: pcm: Add stream lock during PCM reset ioctl operations Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 13/29] ALSA: usb-audio: Add mute TLV for playback volumes on RODE NT-USB Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 14/29] ALSA: cmipci: Restore aux vol on suspend/resume Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 15/29] ALSA: pci: fix reading of swapped values from pcmreg in AC97 codec Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 16/29] drivers: net: xgene: Fix regression in CRC stripping Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 17/29] ASoC: sti: Fix deadlock via snd_pcm_stop_xrun() call Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 18/29] ALSA: oss: Fix PCM OSS buffer allocation overflow Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 5.4 19/29] ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc671 Greg Kroah-Hartman
2022-03-25 15:05 ` [PATCH 5.4 20/29] ALSA: hda/realtek: Add quirk for ASUS GA402 Greg Kroah-Hartman
2022-03-25 15:05 ` [PATCH 5.4 21/29] netfilter: nf_tables: initialize registers in nft_do_chain() Greg Kroah-Hartman
2022-03-25 15:05 ` [PATCH 5.4 22/29] ACPI / x86: Work around broken XSDT on Advantech DAC-BJ01 board Greg Kroah-Hartman
2022-03-25 15:05 ` [PATCH 5.4 23/29] ACPI: battery: Add device HID and quirk for Microsoft Surface Go 3 Greg Kroah-Hartman
2022-03-25 15:05 ` Greg Kroah-Hartman [this message]
2022-03-25 15:05 ` [PATCH 5.4 25/29] crypto: qat - disable registration of algorithms Greg Kroah-Hartman
2022-03-25 15:05 ` [PATCH 5.4 26/29] rcu: Dont deboost before reporting expedited quiescent state Greg Kroah-Hartman
2022-03-25 15:05 ` [PATCH 5.4 27/29] mac80211: fix potential double free on mesh join Greg Kroah-Hartman
2022-03-25 15:05 ` [PATCH 5.4 28/29] tpm: use try_get_ops() in tpm-space.c Greg Kroah-Hartman
2022-03-25 15:05 ` [PATCH 5.4 29/29] nds32: fix access_ok() checks in get/put_user Greg Kroah-Hartman
2022-03-25 21:51 ` [PATCH 5.4 00/29] 5.4.188-rc1 review Florian Fainelli
2022-03-25 23:25 ` Shuah Khan
2022-03-26 13:19 ` Naresh Kamboju
2022-03-26 14:02 ` Sudip Mukherjee
2022-03-27 0:51 ` Guenter Roeck
2022-03-28 1:00 ` Samuel Zou
2022-03-28 14:24 ` Jon Hunter
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