This is a note to let you know that I've just added the patch titled drm/amdgpu: fix set scaling mode Full/Full aspect/Center not works on vga and dvi connectors to the 5.15-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-amdgpu-fix-set-scaling-mode-full-full-aspect-center-not-works-on-vga-and-dvi-connectors.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From bf552083916a7f8800477b5986940d1c9a31b953 Mon Sep 17 00:00:00 2001 From: hongao <hongao@xxxxxxxxxxxxx> Date: Thu, 11 Nov 2021 11:32:07 +0800 Subject: drm/amdgpu: fix set scaling mode Full/Full aspect/Center not works on vga and dvi connectors From: hongao <hongao@xxxxxxxxxxxxx> commit bf552083916a7f8800477b5986940d1c9a31b953 upstream. amdgpu_connector_vga_get_modes missed function amdgpu_get_native_mode which assign amdgpu_encoder->native_mode with *preferred_mode result in amdgpu_encoder->native_mode.clock always be 0. That will cause amdgpu_connector_set_property returned early on: if ((rmx_type != DRM_MODE_SCALE_NONE) && (amdgpu_encoder->native_mode.clock == 0)) when we try to set scaling mode Full/Full aspect/Center. Add the missing function to amdgpu_connector_vga_get_mode can fix this. It also works on dvi connectors because amdgpu_connector_dvi_helper_funcs.get_mode use the same method. Signed-off-by: hongao <hongao@xxxxxxxxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c @@ -827,6 +827,7 @@ static int amdgpu_connector_vga_get_mode amdgpu_connector_get_edid(connector); ret = amdgpu_connector_ddc_get_modes(connector); + amdgpu_get_native_mode(connector); return ret; } Patches currently in stable-queue which might be from hongao@xxxxxxxxxxxxx are queue-5.15/drm-amdgpu-fix-set-scaling-mode-full-full-aspect-center-not-works-on-vga-and-dvi-connectors.patch