Immutable in randr means that clients are not able to alter the property itself, they are only allowed to alter the property value. This logically means that the property then should not be deleted by the client either. Signed-off-by: Luc Verhaegen <libv@skynet.be> Reviewed-by: Rami Ylimäki <rami.ylimaki@vincit.fi> Reviewed-by: Aaron Plattner <aplattner@nvidia.com> Signed-off-by: Aaron Plattner <aplattner@nvidia.com>