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From: Thomas Zimmermann <tzimmermann@suse.de>
To: javierm@redhat.com, ardb@kernel.org, ilias.apalodimas@linaro.org,
	jani.nikula@linux.intel.com, maarten.lankhorst@linux.intel.com,
	mripard@kernel.org, simona@ffwll.ch, airlied@gmail.com
Cc: dri-devel@lists.freedesktop.org, linux-efi@vger.kernel.org,
	sashiko-reviews@lists.linux.dev,
	Thomas Zimmermann <tzimmermann@suse.de>
Subject: [PATCH 0/3] sysfb: Fix display output on Lenovo D330 (and others)
Date: Thu, 27 Aug 2026 16:01:36 +0200	[thread overview]
Message-ID: <20260827140726.420734-1-tzimmermann@suse.de> (raw)

The kernel mis-interprets the display geometry given by the Lenovo
D330 as incorrect. The values are correct, but the display output
is rotated by 90°. With the kernel's firmware quirk applied the output
is garbled.

Remove the firmware quirk for the Lenovo D330 and let DRM's sysfb
drivers set the correct panel orientation instead. To make this work
for any display mode, use the panel size for looking up the correct
orientation.

Tested on a Lenovo D330-10IGM IdeaPad.

Thomas Zimmermann (3):
  drm/edid: Add drm_edid_get_preferred_size()
  drm/sysfb: Use preferred panel size for panel orientation quirks
  firmware/sysfb: Remove rotation quirk for Lenovo D330

 drivers/firmware/efi/sysfb_efi.c |  9 -------
 drivers/gpu/drm/drm_edid.c       | 40 ++++++++++++++++++++++++++++++++
 drivers/gpu/drm/sysfb/efidrm.c   | 17 +++++++++++++-
 drivers/gpu/drm/sysfb/ofdrm.c    | 16 ++++++++++++-
 drivers/gpu/drm/sysfb/vesadrm.c  | 17 +++++++++++++-
 include/drm/drm_edid.h           |  2 ++
 6 files changed, 89 insertions(+), 12 deletions(-)


base-commit: dc462ab791b686c48545c160ecc81be64f77a846
-- 
2.55.0


             reply	other threads:[~2026-08-27 14:09 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-27 14:01 Thomas Zimmermann [this message]
2026-08-27 14:01 ` [PATCH 1/3] drm/edid: Add drm_edid_get_preferred_size() Thomas Zimmermann
2026-08-27 14:01 ` [PATCH 2/3] drm/sysfb: Use preferred panel size for panel orientation quirks Thomas Zimmermann
2026-08-27 14:01 ` [PATCH 3/3] firmware/sysfb: Remove rotation quirk for Lenovo D330 Thomas Zimmermann
2026-08-27 16:56 ` [PATCH 0/3] sysfb: Fix display output on Lenovo D330 (and others) Ard Biesheuvel
2026-08-31 10:34   ` Thomas Zimmermann

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