Call drm_probe_helper_prioritize_connectors() to set connector priorities. Guarantees that only a single output is connected at a time. Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx> --- drivers/gpu/drm/ast/ast_mode.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c index dc8f639e82fd..ac8a3c6b8bf8 100644 --- a/drivers/gpu/drm/ast/ast_mode.c +++ b/drivers/gpu/drm/ast/ast_mode.c @@ -1970,6 +1970,9 @@ int ast_mode_config_init(struct ast_device *ast) if (ret) return ret; + /* All connectors interfere with each other. */ + drm_probe_helper_prioritize_connectors(dev, GENMASK(dev->mode_config.num_connector, 0)); + drm_mode_config_reset(dev); ret = drmm_kms_helper_poll_init(dev); -- 2.45.2