Thank you for reading, and here’s my problem:
When i turn on the machine, sometimes i can not get the Ubuntu Welcome Screen, and the Monitor says there is “No Signal” and turn black.
[What i have tried]
My computer has sshd services installed, so I ssh into it and see what’s going on.
With ps -aux | grep Xorg, I have this output:
root 961 99.6 0.3 136828 27572 tty7 Rs+ 09:23 32:46 /usr/lib/xorg/Xorg -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
I have noticed the STAT is R (Running). I tried to use sudo kill -9 961 to kill the process, it didn’t response anything, so maybe it stucked in some system calls.
And I cat the /var/log/xorg.0.log, I have this:
…
[ 27.467] (II) NVIDIA: Using 12288.00 MB of virtual memory for indirect memory
[ 27.467] (II) NVIDIA: access.
[ 27.587] (II) NVIDIA(0): Setting mode “DFP-2:1920x1080”
And the log just stucked here. normally something like ’ (==) NVIDIA(0): Disabling shared memory pixmaps ’ should come next, but no. So I guess the problem is related to the nVidia driver.
My nvidia driver version is 367.57, and I remember when I use the older version earlier, this problem was also there.
[ How I reproduce this problem ]
If I shutdown from Ubuntu properly, and after a few minutes, press the “power” button, and the problem probably will show up.
After the problem shows up, I press the “power” button for 5 sec to force the machine to shut down and then press the “power” button again, it probably give me the Ubuntu login screen and I can use the computer for hours without any display problem.
If I reboot in Ubuntu using reboot command or Restart button, everything goes well, and I can continue use it for hours.
Any suggestions will help, thank you.
nvidia-bug-report.log.gz (199 KB)