This is a note to let you know that I've just added the patch titled drm/radeon: make sure vertical front porch is at least 1 to the 4.5-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-radeon-make-sure-vertical-front-porch-is-at-least-1.patch and it can be found in the queue-4.5 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 3104b8128d4d646a574ed9d5b17c7d10752cd70b Mon Sep 17 00:00:00 2001 From: Alex Deucher <alexander.deucher@xxxxxxx> Date: Mon, 2 May 2016 18:53:27 -0400 Subject: drm/radeon: make sure vertical front porch is at least 1 From: Alex Deucher <alexander.deucher@xxxxxxx> commit 3104b8128d4d646a574ed9d5b17c7d10752cd70b upstream. hw doesn't like a 0 value. Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/radeon/atombios_encoders.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -310,6 +310,10 @@ static bool radeon_atom_mode_fixup(struc && (mode->crtc_vsync_start < (mode->crtc_vdisplay + 2))) adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + 2; + /* vertical FP must be at least 1 */ + if (mode->crtc_vsync_start == mode->crtc_vdisplay) + adjusted_mode->crtc_vsync_start++; + /* get the native mode for scaling */ if (radeon_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT)) { radeon_panel_mode_fixup(encoder, adjusted_mode); Patches currently in stable-queue which might be from alexander.deucher@xxxxxxx are queue-4.5/drm-radeon-make-sure-vertical-front-porch-is-at-least-1.patch queue-4.5/drm-amdgpu-set-metadata-pointer-to-null-after-freeing.patch queue-4.5/drm-amdgpu-make-sure-vertical-front-porch-is-at-least-1.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html