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apport-collect 1567237
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This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: trusty
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https://bugs.launchpad.net/bugs/1567237
Title:
Kernel 3.19.0-58 freezes Ubuntu 14.04 on Dell Inc. XPS 15 9530
Status in linux package in Ubuntu:
Incomplete
Bug description:
The latest security patch for 3.19.0 for Ubuntu 14.04 started
freezing my laptop (Dell Inc. XPS 15 9530). All the patches before
this one for the kernel 3.19.0 for Ubuntu 14.04 were OK. From log, the
last message before freezing was "kernel: ...[drm] HPD interrupt storm
detected on connector HDMI-A-1: switching from hotplug detection to
polling", as you can see below:
Apr 6 14:46:17 xxx-ubuntu dbus[1001]: [system] Activating service
name='org.freedesktop.hostname1' (using servicehelper)
Apr 6 14:46:17 xxx-ubuntu dbus[1001]: [system] Successfully activated service
'org.freedesktop.hostname1'
Apr 6 14:46:17 xxx-ubuntu kernel: [ 945.147481] systemd-hostnamed[11982]:
Warning: nss-myhostname is not installed. Changing the local hostname might
make it unresolveable. Plea
se install nss-myhostname!
Apr 6 14:50:36 xxx-ubuntu sudo: pam_ecryptfs: pam_sm_authenticate: /home/xxx
is already mounted
Apr 6 15:00:01 xxx-ubuntu CRON[12829]: (root) CMD (if [ -x
/usr/sbin/backupninja ]; then /usr/sbin/backupninja; fi)
Apr 6 15:02:29 xxx-ubuntu kernel: [ 1916.954839] sound hdaudioC0D0: HDMI: ELD
buf size is 0, force 128
Apr 6 15:02:29 xxx-ubuntu kernel: [ 1916.954877] sound hdaudioC0D0: HDMI:
invalid ELD data byte 0
Apr 6 15:07:35 xxx-ubuntu kernel: [ 2222.796696] [drm] HPD interrupt storm
detected on connector HDMI-A-1: switching from hotplug detection to polling
This is the same symptom as described in the bug
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1552333, which is
a bug raised for 4.2 kernel running on Ubuntu 14.04 using the same
laptop and the same Ubuntu installation as for this bug.
At the moment I switched back to kernel 3.19.0-51 that does not cause
this problem, but the possibility that from now on all future security
patches for 3.19.0 might freeze my laptop sounds very bad.
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