On 2025-07-01 16:14, Alex Deucher wrote:
> [Why]
> Common resolutions are added to supported modes to enable compatibility
> scenarios that compositors may use to do things like clone displays. There
> is no guarantee however that the panel will natively support these modes.
>
> [How]
> If the compositor hasn't enabled scaling but a non-native resolution has
> been picked for an LVDS panel turn the scaler on anyway. This will ensure
> compatibility.
>
> Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Series is
Reviewed-by: Harry Wentland <harry.wentl...@amd.com>
Harry
> ---
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 7a4fca9a61bbe..096b23ad4845d 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -7901,7 +7901,8 @@ static int dm_encoder_helper_atomic_check(struct
> drm_encoder *encoder,
> int clock, bpp = 0;
> bool is_y420 = false;
>
> - if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
> + if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) ||
> + (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) {
> struct amdgpu_encoder *amdgpu_encoder =
> to_amdgpu_encoder(encoder);
> struct drm_display_mode *native_mode =
> &amdgpu_encoder->native_mode;
> enum drm_mode_status result;
