diff --git a/src/capture/kms_vaapi.c b/src/capture/kms_vaapi.c
index ea2ece0..4245f39 100644
--- a/src/capture/kms_vaapi.c
+++ b/src/capture/kms_vaapi.c
@@ -165,12 +165,16 @@ static int gsr_capture_kms_vaapi_start(gsr_capture *cap, AVCodecContext *video_c
     cap_kms->capture_pos = monitor.pos;
     cap_kms->capture_size = monitor.size;
 
+    fprintf(stderr, "capture size: %d, %d\n", cap_kms->capture_size.x, cap_kms->capture_size.y);
+
     /* Disable vsync */
     cap_kms->params.egl->eglSwapInterval(cap_kms->params.egl->egl_display, 0);
 
     video_codec_context->width = max_int(2, even_number_ceil(cap_kms->capture_size.x));
     video_codec_context->height = max_int(2, even_number_ceil(cap_kms->capture_size.y));
 
+    fprintf(stderr, "video size: %d, %d\n", video_codec_context->width, video_codec_context->height);
+
     if(!drm_create_codec_context(cap_kms, video_codec_context)) {
         gsr_capture_kms_vaapi_stop(cap, video_codec_context);
         return -1;
@@ -246,6 +250,8 @@ static void gsr_capture_kms_vaapi_tick(gsr_capture *cap, AVCodecContext *video_c
         cap_kms->params.egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
         cap_kms->params.egl->glBindTexture(GL_TEXTURE_2D, 0);
 
+        fprintf(stderr, "prime width: %u, height: %u\n", cap_kms->prime.width, cap_kms->prime.height);
+
         if(cap_kms->prime.fourcc == FOURCC_NV12) {
             cap_kms->params.egl->glGenTextures(2, cap_kms->target_textures);
             for(int i = 0; i < 2; ++i) {
@@ -463,6 +469,12 @@ static int gsr_capture_kms_vaapi_capture(gsr_capture *cap, AVFrame *frame) {
     if(!capture_is_combined_plane && cursor_drm_fd && cursor_drm_fd->connector_id != drm_fd->connector_id)
         cursor_drm_fd = NULL;
 
+    static bool test = true;
+    if(test) {
+        test = false;
+        fprintf(stderr, "drm fd: %d, %d\n", drm_fd->width, drm_fd->height);
+    }
+
     // TODO: This causes a crash sometimes on steam deck, why? is it a driver bug? a vaapi pure version doesn't cause a crash.
     // Even ffmpeg kmsgrab causes this crash. The error is:
     // amdgpu: Failed to allocate a buffer: