diff --git a/src/video/kmsdrm/SDL_kmsdrmvideo.c b/src/video/kmsdrm/SDL_kmsdrmvideo.c index eae721455..eeeefef2b 100644 --- a/src/video/kmsdrm/SDL_kmsdrmvideo.c +++ b/src/video/kmsdrm/SDL_kmsdrmvideo.c @@ -666,8 +666,8 @@ KMSDRM_CrtcGetVrr(uint32_t drm_fd, uint32_t crtc_id) /* Gets a DRM connector, builds an SDL_Display with it, and adds it to the list of SDL Displays in _this->displays[] */ static void -KMSDRM_AddDisplay (_THIS, drmModeConnector *connector, drmModeRes *resources) { - +KMSDRM_AddDisplay (_THIS, drmModeConnector *connector, drmModeRes *resources) +{ SDL_VideoData *viddata = ((SDL_VideoData *)_this->driverdata); SDL_DisplayData *dispdata = NULL; SDL_VideoDisplay display = {0}; @@ -770,14 +770,37 @@ KMSDRM_AddDisplay (_THIS, drmModeConnector *connector, drmModeRes *resources) { drmModeModeInfo *mode = &connector->modes[i]; if (!SDL_memcmp(mode, &crtc->mode, sizeof(crtc->mode))) { - mode_index = i; - break; + mode_index = i; + break; } } if (mode_index == -1) { - ret = SDL_SetError("Failed to find index of mode attached to the CRTC."); - goto cleanup; + int current_area, largest_area = 0; + + /* Find the preferred mode or the highest resolution mode */ + for (i = 0; i < connector->count_modes; i++) { + drmModeModeInfo *mode = &connector->modes[i]; + + if (mode->type & DRM_MODE_TYPE_PREFERRED) { + mode_index = i; + break; + } + + current_area = mode->hdisplay * mode->vdisplay; + if (current_area > largest_area) { + mode_index = i; + largest_area = current_area; + } + } + if (mode_index != -1) { + crtc->mode = connector->modes[mode_index]; + } + } + + if (mode_index == -1) { + ret = SDL_SetError("Failed to find index of mode attached to the CRTC."); + goto cleanup; } /*********************************************/