Also happening in 15.10 Wily, with lightdm 1.15.3-0ubuntu3 Repeated 3 times per second constantly for about 15 minutes and then system froze - not sure if this was the cause of the freeze but it was the only logged info immediately before the freeze.
Sep 1 19:23:43 hephaestion lightdm[951]: /etc/modprobe.d is not a file Sep 1 19:23:43 hephaestion lightdm[951]: message repeated 3 times: [ /etc/modprobe.d is not a file] Sep 1 19:23:43 hephaestion lightdm[951]: update-alternatives: error: no alternatives for x86_64-linux-gnu_gfxcore_conf ... Sep 1 19:35:39 hephaestion lightdm[951]: /etc/modprobe.d is not a file Sep 1 19:35:39 hephaestion lightdm[951]: message repeated 3 times: [ /etc/modprobe.d is not a file] Sep 1 19:35:39 hephaestion lightdm[951]: update-alternatives: error: no alternatives for x86_64-linux-gnu_gfxcore_conf It also occurs for gpu-manager so this may be caused by systemd-init Sep 01 19:48:49 hephaestion.lan.iam.tj gpu-manager[784]: /etc/modprobe.d is not a file Sep 01 19:48:49 hephaestion.lan.iam.tj gpu-manager[784]: /etc/modprobe.d is not a file Sep 01 19:48:49 hephaestion.lan.iam.tj gpu-manager[784]: /etc/modprobe.d is not a file Sep 01 19:48:49 hephaestion.lan.iam.tj gpu-manager[784]: /etc/modprobe.d is not a file ... Sep 01 19:48:51 hephaestion.lan.iam.tj gpu-manager[989]: /etc/modprobe.d is not a file Sep 01 19:48:51 hephaestion.lan.iam.tj gpu-manager[989]: /etc/modprobe.d is not a file Sep 01 19:48:51 hephaestion.lan.iam.tj gpu-manager[989]: /etc/modprobe.d is not a file Sep 01 19:48:51 hephaestion.lan.iam.tj gpu-manager[989]: /etc/modprobe.d is not a file Sep 01 19:48:51 hephaestion.lan.iam.tj gpu-manager[989]: update-alternatives: error: no alternatives for x86_64-linux-gnu_gfxcore_conf ** Also affects: ubuntu-drivers-common (Ubuntu) Importance: Undecided Status: New ** Changed in: lightdm (Ubuntu) Status: New => Triaged ** Changed in: ubuntu-drivers-common (Ubuntu) Status: New => Triaged -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1452610 Title: /etc/modprobe.d is not a file Status in lightdm package in Ubuntu: Triaged Status in ubuntu-drivers-common package in Ubuntu: Triaged Bug description: /var/log/upstart# cat lightdm.log /etc/modprobe.d is not a file /etc/modprobe.d is not a file /etc/modprobe.d is not a file /etc/modprobe.d is not a file update-alternatives: error: no alternatives for x86_64-linux-gnu_gfxcore_conf /etc/modprobe.d is not a file /etc/modprobe.d is not a file /etc/modprobe.d is not a file /etc/modprobe.d is not a file update-alternatives: error: no alternatives for x86_64-linux-gnu_gfxcore_conf /etc/modprobe.d is not a file /etc/modprobe.d is not a file /etc/modprobe.d is not a file /etc/modprobe.d is not a file update-alternatives: error: no alternatives for x86_64-linux-gnu_gfxcore_conf Above looks weird... modprobe.d is a directory & why update- alternatives are called?! This is lightdm 1.10.5-0ubuntu1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1452610/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp