compositor: Report refresh rates in mHz
We compute the higher resolution from the mode timing parameters.
diff --git a/src/compositor-drm.c b/src/compositor-drm.c
index 7023a8c..2b670b3 100644
--- a/src/compositor-drm.c
+++ b/src/compositor-drm.c
@@ -885,7 +885,7 @@
fprintf(stderr, "failed to set mode (%dx%d) %u Hz\n",
drm_mode->base.width,
drm_mode->base.height,
- drm_mode->base.refresh);
+ drm_mode->base.refresh / 1000);
ret = -1;
} else {
output->base.current->flags = 0;
@@ -1090,6 +1090,7 @@
drm_output_add_mode(struct drm_output *output, drmModeModeInfo *info)
{
struct drm_mode *mode;
+ uint64_t refresh;
mode = malloc(sizeof *mode);
if (mode == NULL)
@@ -1098,7 +1099,19 @@
mode->base.flags = 0;
mode->base.width = info->hdisplay;
mode->base.height = info->vdisplay;
- mode->base.refresh = info->vrefresh;
+
+ /* Calculate higher precision (mHz) refresh rate */
+ refresh = (info->clock * 1000000LL / info->htotal +
+ info->vtotal / 2) / info->vtotal;
+
+ if (info->flags & DRM_MODE_FLAG_INTERLACE)
+ refresh *= 2;
+ if (info->flags & DRM_MODE_FLAG_DBLSCAN)
+ refresh /= 2;
+ if (info->vscan > 1)
+ refresh /= info->vscan;
+
+ mode->base.refresh = refresh;
mode->mode_info = *info;
wl_list_insert(output->base.mode_list.prev, &mode->base.link);