When KMS has parsed an EDID "detailed timing", it leaves the frame rate zeroed. Consecutive (debug-) output of that mode thus yields 0 for vsync. This simple fix also speeds up future invocations of drm_mode_vrefresh(). While it is debatable whether this qualifies as a -stable fix I'd apply it for consistency's sake; drm_helper_probe_single_connector_modes() does the same thing already for all probed modes.
Unified · Split
| @@ -1715,6 +1715,7 @@ set_size: · 1714 unmodified lines | |||
| 1715 | } | 1715 | } |
| 1716 | 1716 | ||
| 1717 | mode->type = DRM_MODE_TYPE_DRIVER; | 1717 | mode->type = DRM_MODE_TYPE_DRIVER; |
| 1718 | mode->vrefresh = drm_mode_vrefresh(mode); | ||
| 1718 | drm_mode_set_name(mode); | 1719 | drm_mode_set_name(mode); |
| 1719 | 1720 | ||
| 1720 | return mode; | 1721 | return mode; |