I'm seeing the same behaviour after an upgrade from Precise to Trusty, and it is disheartening to see that the bug was reported during an upgrade between intermediate versions with very little traction. I've added logic to my shell rc script to run xmodmap when I log in, but this does not address the case where I resume, so I still need to manually run xmodmap somewhat regularly.
I'm seeing the same behaviour after an upgrade from Precise to Trusty, and it is disheartening to see that the bug was reported during an upgrade between intermediate versions with very little traction. I've added logic to my shell rc script to run xmodmap when I log in, but this does not address the case where I resume, so I still need to manually run xmodmap somewhat regularly.