This is a note to let you know that I've just added the patch titled drm/amdgpu: set fb_modifiers_not_supported in vkms to the 6.0-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-set-fb_modifiers_not_supported-in-vkms.patch and it can be found in the queue-6.0 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit c6792d29128575014d050160684d1de71bfbe713 Author: Yifan Zhang <yifan1.zhang@xxxxxxx> Date: Mon Oct 24 12:47:47 2022 +0800 drm/amdgpu: set fb_modifiers_not_supported in vkms [ Upstream commit 89b3554782e6b65894f0551e9e0a82ad02dac94d ] This patch to fix the gdm3 start failure with virual display: /usr/libexec/gdm-x-session[1711]: (II) AMDGPU(0): Setting screen physical size to 270 x 203 /usr/libexec/gdm-x-session[1711]: (EE) AMDGPU(0): Failed to make import prime FD as pixmap: 22 /usr/libexec/gdm-x-session[1711]: (EE) AMDGPU(0): failed to set mode: Invalid argument /usr/libexec/gdm-x-session[1711]: (WW) AMDGPU(0): Failed to set mode on CRTC 0 /usr/libexec/gdm-x-session[1711]: (EE) AMDGPU(0): Failed to enable any CRTC gnome-shell[1840]: Running GNOME Shell (using mutter 42.2) as a X11 window and compositing manager /usr/libexec/gdm-x-session[1711]: (EE) AMDGPU(0): failed to set mode: Invalid argument vkms doesn't have modifiers support, set fb_modifiers_not_supported to bring the gdm back. Signed-off-by: Yifan Zhang <yifan1.zhang@xxxxxxx> Acked-by: Guchun Chen <guchun.chen@xxxxxxx> Reviewed-by: Tim Huang <Tim.Huang@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c index 576849e95296..f69827aefb57 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c @@ -500,6 +500,8 @@ static int amdgpu_vkms_sw_init(void *handle) adev_to_drm(adev)->mode_config.fb_base = adev->gmc.aper_base; + adev_to_drm(adev)->mode_config.fb_modifiers_not_supported = true; + r = amdgpu_display_modeset_create_props(adev); if (r) return r;