Update:  I am seeing consistent crashes with files containing multiple structures (e.g. multi-xyz or multi-cif files). They open fine in a...

Update: The only thing that worked for turning off screen-blanking when using youtube or vlc was an ugly little hack: I installed xdotool ...

Note: you may want to install awscli and euca2ools . I didn't, so I don't actually know whether they are useful. My instructions ...