Just thought though of one thing that MC *could* do in the meantime, as a workaround.
Since an inaccessible /dev/vcsa device prevents MC from properly saving and restoring the screen when using C-O to flip flop to and from the subshell, methinks that MC should be able to recognize a permission problem and both issue a proper diagnostic and perhaps cease trying.
Just thought though of one thing that MC *could* do in the meantime, as a workaround.
Since an inaccessible /dev/vcsa device prevents MC from properly saving and restoring the screen when using C-O to flip flop to and from the subshell, methinks that MC should be able to recognize a permission problem and both issue a proper diagnostic and perhaps cease trying.