I was getting random freezes on a Dell Latitude E7450 with Intel HD Graphics 5500, with no hints as to the cause in logs that I could find. Freezes could happen multiple times a day when in heavy use, but often more like once a week. I followed the advice in #42 a month ago and have had no freezes since (fingers crossed!).
Currently on 18.04.2 LTS with 4.15.0-50-generic, but also had freezes on 16.04 LTS, starting around autumn 2018. Although had been using this laptop since 2015 without problem before that.
I was getting random freezes on a Dell Latitude E7450 with Intel HD Graphics 5500, with no hints as to the cause in logs that I could find. Freezes could happen multiple times a day when in heavy use, but often more like once a week. I followed the advice in #42 a month ago and have had no freezes since (fingers crossed!).
Currently on 18.04.2 LTS with 4.15.0-50-generic, but also had freezes on 16.04 LTS, starting around autumn 2018. Although had been using this laptop since 2015 without problem before that.