I'm not sure if this is the same bug, but after upgrading to 15.04, I have to "sudo systemctl restart NetworkManager" to get back my network interfaces after a long suspend. If I test a short suspend/resume cycle, like a couple seconds, it works fine, but when I open my laptop in the morning I have to restart NetworkManager.
I attached a journalctl excerpt; I closed the lid last night at 20:29, then opened it this morning at 08:09 and first tried the hardware switch, then eventually restarted NetworkManager.
I'm not sure if this is the same bug, but after upgrading to 15.04, I have to "sudo systemctl restart NetworkManager" to get back my network interfaces after a long suspend. If I test a short suspend/resume cycle, like a couple seconds, it works fine, but when I open my laptop in the morning I have to restart NetworkManager.
I attached a journalctl excerpt; I closed the lid last night at 20:29, then opened it this morning at 08:09 and first tried the hardware switch, then eventually restarted NetworkManager.