Patch "drm/amd/display: Disable fastboot on DCE 6 too" has been added to the 6.12-stable tree

gregkh
2026-04-08T13:08:03Z

This is a note to let you know that I've just added the patch titled

drm/amd/display: Disable fastboot on DCE 6 too

to the 6.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
drm-amd-display-disable-fastboot-on-dce-6-too.patch
and it can be found in the queue-6.12 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.

From stable+bounces-232622-greg=kroah.com@vger.kernel.org Wed Apr 1 02:43:13 2026
From: Rosen Penev <rosenp@gmail.com>
Date: Tue, 31 Mar 2026 17:39:01 -0700
Subject: drm/amd/display: Disable fastboot on DCE 6 too
To: stable@vger.kernel.org
Cc: "Alex Deucher" <alexander.deucher@amd.com>, "Christian König" <christian.koenig@amd.com>, "Xinhui Pan" <Xinhui.Pan@amd.com>, "David Airlie" <airlied@gmail.com>, "Simona Vetter" <simona@ffwll.ch>, "Harry Wentland" <harry.wentland@amd.com>, "Leo Li" <sunpeng.li@amd.com>, "Rodrigo Siqueira" <Rodrigo.Siqueira@amd.com>, "Ray Wu" <ray.wu@amd.com>, "Wayne Lin" <wayne.lin@amd.com>, "Mario Limonciello" <Mario.Limonciello@amd.com>, "Roman Li" <Roman.Li@amd.com>, "Eric Yang" <Eric.Yang2@amd.com>, "Tony Cheng" <Tony.Cheng@amd.com>, "Mauro Rossi" <issor.oruam@gmail.com>, "Timur Kristóf" <timur.kristof@gmail.com>, "Alex Hung" <alex.hung@amd.com>, amd-gfx@lists.freedesktop.org (open list:RADEON and AMDGPU DRM DRIVERS), dri-devel@lists.freedesktop.org (open list:DRM DRIVERS), linux-kernel@vger.kernel.org (open list)
Message-ID: <20260401003908.3438-4-rosenp@gmail.com>

From: Timur KristÃ³f <timur.kristof@gmail.com>

[ Upstream commit 7495962cbceb967e095233a5673ea71f3bcdee7e ]

It already didn't work on DCE 8,
so there is no reason to assume it would on DCE 6.

Signed-off-by: Timur KristÃ³f <timur.kristof@gmail.com>
Reviewed-by: Rodrigo Siqueira <siqueira@igalia.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

--- a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c
@@ -1910,10 +1910,8 @@ void dce110_enable_accelerated_mode(stru

get_edp_streams(context, edp_streams, &edp_stream_num);

- // Check fastboot support, disable on DCE8 because of blank screens
- if (edp_num && edp_stream_num && dc->ctx->dce_version != DCE_VERSION_8_0 &&
- dc->ctx->dce_version != DCE_VERSION_8_1 &&
- dc->ctx->dce_version != DCE_VERSION_8_3) {
+ /* Check fastboot support, disable on DCE 6-8 because of blank screens */
+ if (edp_num && edp_stream_num && dc->ctx->dce_version < DCE_VERSION_10_0) {
for (i = 0; i < edp_num; i++) {
edp_link = edp_links[i];
if (edp_link != edp_streams[0]->link)

Patches currently in stable-queue which might be from rosenp@gmail.com are

queue-6.12/drm-amd-amdgpu-decouple-aspm-with-pcie-dpm.patch
queue-6.12/drm-amd-display-reject-modes-with-too-high-pixel-clock-on-dce6-10.patch
queue-6.12/drm-amd-display-fix-dce-6.0-and-6.4-pll-programming.patch
queue-6.12/drm-amd-display-disable-scaling-on-dce6-for-now.patch
queue-6.12/drm-amd-display-disable-fastboot-on-dce-6-too.patch
queue-6.12/drm-amd-display-correct-logic-check-error-for-fastboot.patch
queue-6.12/drm-amd-amdgpu-disable-aspm-in-some-situations.patch
queue-6.12/drm-amd-display-keep-pll0-running-on-dce-6.0-and-6.4.patch
queue-6.12/drm-amd-display-adjust-dce-8-10-clock-don-t-overclock-by-15.patch
queue-6.12/drm-amd-disable-aspm-on-si.patch