Hello,
I installed Ubuntu Trusty on an old tower yesterday, which has an
integrated nvidia Geforce 7* so this is "nouveau" running on that
machine, and after a while, when clicking on some menu the mouse
suddenly freezes, and there is this strange look on the screen, looking
a lot like what Elfy describes.
This happened after the distro was installed and updated. I have been
able to install a few packages, but then it froze again. I could not use
the SysRQ, it didn't work.
This morning on my own tower, which now runs Xenial I hit the same issue :
which never happened before! But my tower has the same kind of nvidia internal
GPU, an old Geforce 7, and I can't use the nvidia driver because it's now
unable to display the resolution properly. So I thought the fault must be the
nouveau driver (or firmware? I can't know that).
I also tried to ssh my tower using my laptop, but the frozen machine was
unreachable.
I don't know why I can't attach more than one file here (using Firefox
44.0.1 but never could before). So I paste down here the 80 last lines
of the most relevant syslog I could find, the one that has the timestamp
from just before it froze, there is a part related to nouveau in it:
*
Feb 11 10:33:40 bento64 ntpd[1696]: peers refreshed
Feb 11 10:33:40 bento64 ntpd[1696]: Listening on routing socket on fd #23 for
interface updates
Feb 11 10:33:40 bento64 ntp[1684]: ...done.
Feb 11 10:33:46 bento64 systemd[1]: Stopping LSB: Start NTP daemon...
Feb 11 10:33:46 bento64 ntp[1721]: * Stopping NTP server ntpd
Feb 11 10:33:46 bento64 ntpd[1696]: ntpd exiting on signal 15
Feb 11 10:33:46 bento64 ntp[1721]: ...done.
Feb 11 10:33:46 bento64 systemd[1]: Stopped LSB: Start NTP daemon.
Feb 11 10:33:56 bento64 ntpdate[1734]: adjust time server 178.33.227.201 offset
-0.289198 sec
Feb 11 10:33:56 bento64 systemd[1]: Starting LSB: Start NTP daemon...
Feb 11 10:33:56 bento64 ntp[1765]: * Starting NTP server ntpd
Feb 11 10:33:56 bento64 ntpd[1776]: ntpd 4.2.6p5@1.2349-o Mon Dec 7 13:51:58
UTC 2015 (1)
Feb 11 10:33:56 bento64 ntpd[1777]: proto: precision = 0.116 usec
Feb 11 10:33:56 bento64 systemd[1]: Started LSB: Start NTP daemon.
Feb 11 10:33:56 bento64 ntpd[1777]: ntp_io: estimated max descriptors: 1024,
initial socket boundary: 16
Feb 11 10:33:56 bento64 ntpd[1777]: Listen and drop on 0 v4wildcard 0.0.0.0 UDP
123
Feb 11 10:33:56 bento64 ntp[1765]: ...done.
Feb 11 10:33:56 bento64 ntpd[1777]: Listen and drop on 1 v6wildcard :: UDP 123
Feb 11 10:33:56 bento64 ntpd[1777]: Listen normally on 2 lo 127.0.0.1 UDP 123
Feb 11 10:33:56 bento64 ntpd[1777]: Listen normally on 3 eth0 192.168.1.5 UDP
123
Feb 11 10:33:56 bento64 ntpd[1777]: Listen normally on 4 virbr0 192.168.122.1
UDP 123
Feb 11 10:33:56 bento64 ntpd[1777]: Listen normally on 5 lo ::1 UDP 123
Feb 11 10:33:56 bento64 ntpd[1777]: Listen normally on 6 eth0
fe80::6e62:6dff:fef5:1334 UDP 123
Feb 11 10:33:56 bento64 ntpd[1777]: peers refreshed
Feb 11 10:33:56 bento64 ntpd[1777]: Listening on routing socket on fd #23 for
interface updates
Feb 11 10:34:04 bento64 systemd[1]: Starting Stop ureadahead data collection...
Feb 11 10:34:04 bento64 systemd[1]: Stopped Read required files in advance.
Feb 11 10:34:04 bento64 systemd[1]: Started Stop ureadahead data collection.
Feb 11 10:37:14 bento64 systemd[1206]: Time has been changed
Feb 11 10:37:14 bento64 systemd[1]: Time has been changed
Feb 11 10:37:59 bento64 anacron[688]: Job `cron.daily' started
Feb 11 10:37:59 bento64 anacron[1790]: Updated timestamp for job `cron.daily'
to 2016-02-11
Feb 11 10:46:24 bento64 org.gtk.vfs.Daemon[1220]: A connection to the bus can't
be made
Feb 11 10:46:24 bento64 systemd[1]: Created slice User Slice of melodie.
Feb 11 10:46:24 bento64 systemd[1]: Starting User Manager for UID 1000...
Feb 11 10:46:24 bento64 systemd[1]: Started Session c2 of user melodie.
Feb 11 10:46:24 bento64 systemd[1835]: Reached target Sockets.
Feb 11 10:46:24 bento64 systemd[1835]: Reached target Timers.
Feb 11 10:46:24 bento64 systemd[1835]: Reached target Paths.
Feb 11 10:46:24 bento64 systemd[1835]: Reached target Basic System.
Feb 11 10:46:24 bento64 systemd[1835]: Reached target Default.
Feb 11 10:46:24 bento64 systemd[1835]: Startup finished in 104ms.
Feb 11 10:46:24 bento64 systemd[1]: Started User Manager for UID 1000.
Feb 11 10:46:25 bento64 systemd[1]: Stopping User Manager for UID 104...
Feb 11 10:46:25 bento64 systemd[1206]: Reached target Shutdown.
Feb 11 10:46:25 bento64 systemd[1206]: Starting Exit the Session...
Feb 11 10:46:25 bento64 systemd[1206]: Stopped target Default.
Feb 11 10:46:25 bento64 systemd[1206]: Stopped target Basic System.
Feb 11 10:46:25 bento64 systemd[1206]: Stopped target Paths.
Feb 11 10:46:25 bento64 systemd[1206]: Stopped target Timers.
Feb 11 10:46:25 bento64 systemd[1206]: Stopped target Sockets.
Feb 11 10:46:25 bento64 systemd[1206]: Received SIGRTMIN+24 from PID 1848
(kill).
Feb 11 10:46:25 bento64 systemd[1]: Stopped User Manager for
