linux-kernel - [PATCH RESEND] drm: panel-backlight-quirks: Add Minisforum V3 SE

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <20260201233137.1661172-1-samuel@dionne-riel.com>
Date: Sun,  1 Feb 2026 18:31:37 -0500
From: Samuel Dionne-Riel <samuel@...nne-riel.com>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>
Cc: Samuel Dionne-Riel <samuel@...nne-riel.com>,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH RESEND] drm: panel-backlight-quirks: Add Minisforum V3 SE

Exactly the same situation as with the Framework 13. Value from
ATIF is 12, which is quite bright as a minimum.

Additionally, disabling the custom curve produces a much more granular
control, especially at lower brightness values. For now this can be done
by the end-user by using `amdgpu.dcdebugmask=0x40000`.

Signed-off-by: Samuel Dionne-Riel <samuel@...nne-riel.com>
---
Originally sent as: https://lore.kernel.org/dri-devel/20251221185608.2718273-3-samuel@dionne-riel.com/

I have not resent the sibling patch sets, which implement further
backlight quirks and handling to improve the experience with the device.
I can resend them, but seeing that they are likely to incurr at least
one round-trip of work, that seems a tad excessive.

Sibling patch sets:
 - https://lore.kernel.org/dri-devel/20251221192422.2726883-1-samuel@dionne-riel.com/
 - https://lore.kernel.org/dri-devel/20251221200434.2735218-2-samuel@dionne-riel.com/

Thank you all for your time!

 drivers/gpu/drm/drm_panel_backlight_quirks.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/drm_panel_backlight_quirks.c b/drivers/gpu/drm/drm_panel_backlight_quirks.c
index 537dc6dd05343..64a1c1f7abe76 100644
--- a/drivers/gpu/drm/drm_panel_backlight_quirks.c
+++ b/drivers/gpu/drm/drm_panel_backlight_quirks.c
@@ -60,6 +60,14 @@ static const struct drm_get_panel_backlight_quirk drm_panel_min_backlight_quirks
 		.dmi_match_other.value = "Galileo",
 		.quirk = { .min_brightness = 1, },
 	},
+	/* Minisforum V3 SE */
+	{
+		.dmi_match.field = DMI_BOARD_VENDOR,
+		.dmi_match.value = "Shenzhen Meigao Electronic Equipment Co.,Ltd",
+		.dmi_match_other.field = DMI_PRODUCT_NAME,
+		.dmi_match_other.value = "V3 SE",
+		.quirk = { .min_brightness = 1, },
+	},
 	/* Have OLED Panels with brightness issue when last byte is 0/1 */
 	{
 		.dmi_match.field = DMI_SYS_VENDOR,

base-commit: 63804fed149a6750ffd28610c5c1c98cce6bd377
-- 
2.51.0