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> } data_t; > > +static bool fit_modes_in_bw(data_t *data) > +{ > + bool found; > + int ret; > + > + ret = igt_display_try_commit_atomic(&data->display, > + DRM_MODE_ATOMIC_TEST_ONLY | > + DRM_MODE_ATOMIC_ALLOW_MODESET, NULL); > + if (ret != 0) { > + found = igt_override_all_active_output_modes_to_fit_bw(&data->display); > + igt_require_f(found, > + "No valid mode combo found for modeset\n"); > + } > + return true; > +} Lets have this function as part of lib. > + > static bool output_is_dp_mst(data_t *data, igt_output_t *output, int i) > { > int connector_id; > @@ -93,6 +109,8 @@ static void run_extendedmode_basic(data_t *data, > mode[0] = igt_output_get_mode(output1); > mode[1] = igt_output_get_mode(output2); > > + igt_assert(fit_modes_in_bw(data)); > + > pipe_crc[0] = igt_pipe_crc_new(data->drm_fd, pipe1, IGT_PIPE_CRC_SOURCE_AUTO); > pipe_crc[1] = igt_pipe_crc_new(data->drm_fd, pipe2, IGT_PIPE_CRC_SOURCE_AUTO); > > @@ -138,6 +156,7 @@ static void run_extendedmode_basic(data_t *data, > igt_fb_set_size(&fb, plane[1], mode[1]->hdisplay, mode[1]->vdisplay); > igt_plane_set_size(plane[1], mode[1]->hdisplay, mode[1]->vdisplay); > > + igt_assert(fit_modes_in_bw(data)); > igt_display_commit2(display, COMMIT_ATOMIC); > > igt_pipe_crc_collect_crc(pipe_crc[0], &crc[0]); > @@ -158,6 +177,7 @@ static void run_extendedmode_basic(data_t *data, > DRM_PLANE_TYPE_PRIMARY), NULL); > igt_plane_set_fb(igt_pipe_get_plane_type(&display->pipes[pipe2], > DRM_PLANE_TYPE_PRIMARY), NULL); > + igt_assert(fit_modes_in_bw(data)); > igt_display_commit2(display, COMMIT_ATOMIC); > > /*Compare CRC*/