Here are xtrace log files capturing the X requests made by transset (which failed) and xprop (which succeeded) on the same window.
** Attachment added: "xtrace of transset that had no effect" https://bugs.launchpad.net/ubuntu/+source/x11-apps/+bug/1301472/+attachment/4060918/+files/transset-fail.xtrace -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to x11-apps in Ubuntu. https://bugs.launchpad.net/bugs/1301472 Title: transset fails to change the _NET_WM_WINDOW_OPACITY property To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/x11-apps/+bug/1301472/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp