Simon P., to advise, the patch that you tested as fixing your issue was released for later versions of the Ubuntu kernel as per https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1561974 .
Could you please confirm if one of the following works for you: 1) With 14.04 using the kernel enablement stack in: https://wiki.ubuntu.com/Kernel/LTSEnablementStack 2) Using Xenial (16.04) or later?
Simon P., to advise, the patch that you tested as fixing your issue was released for later versions of the Ubuntu kernel as per https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/1561974 .
Could you please confirm if one of the following works for you: /wiki.ubuntu. com/Kernel/ LTSEnablementSt ack
1) With 14.04 using the kernel enablement stack in: https:/
2) Using Xenial (16.04) or later?