Re: [PATCH i-g-t] tests/kms_rotation_crc: Add vblank wait for multiplane rotation synchronization

["Sharma, Swati2" <swati2.sharma@intel.com>]

Hi Jeevan

I see test passing with and w/o your patch 
https://intel-gfx-ci.01.org/tree/intel-xe/IGTPW_14562/shards-all.html?testfilter=multiplane-rotation

On 17-02-2026 11:38 am, Jeevan B wrote:
> Add explicit vblank wait after atomic commit in test_multi_plane_rotation()
> to ensure both planes are fully synchronized before CRC capture. This fixes
> sporadic CRC mismatches observed on CI.
>
> Closes: https://gitlab.freedesktop.org/drm/xe/kernel/issues/6946
> Signed-off-by: Jeevan B <jeevan.b@intel.com>
> ---
>   tests/kms_rotation_crc.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/tests/kms_rotation_crc.c b/tests/kms_rotation_crc.c
> index 8721a8311..93e5c3e91 100644
> --- a/tests/kms_rotation_crc.c
> +++ b/tests/kms_rotation_crc.c
> @@ -1032,6 +1032,7 @@ static void test_multi_plane_rotation(data_t *data, enum pipe pipe)
>   							continue;
>   
>   						igt_display_commit_atomic(display, DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
> +						igt_wait_for_vblank(crtc);
>   						fliphw = kmstest_get_vblank(data->gfx_fd,
>   									    crtc->pipe,
>   									    0) + 1;