Moved the hard disk inside the PC case (it was a standard hard disk
plugged in a USB mobile disk enclosure) and suspend/resume is ok.
So there is a bug (kernel regression), but only if the OS is installed
on an external hard disk.
** Package changed: nvidia-graphics-drivers-331 (Ubuntu) => ubuntu
** Changed in: ubuntu
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1423040
Title:
REISUB required on resume after suspend kernel regression > 3.11
Status in Ubuntu:
Confirmed
Bug description:
System:
Ubuntu 14.04 64 bit (actually mint 17.1 xfce cinnamon or zorin 9) or Ubuntu
12.04 with trusty-lts kernel
Nvidia proprietary driver (tested with 304, 331 and 346 versions) Geforce
GT430
(may be related to nvidia but no bug on another system with Geforce 9400M)
Expected behaviour:
This system suspends/resumes very well on Ubuntu 12.04 with stock kernel (3.2)
What happened instead:
Unusable desktop after resume, nothing can be launched (often black desktop
and/or dead mouse). The exact behaviour depends on the kernel version and is
not always the same. Sometimes, the desktop is restored (after CTRL-ALT-F8)
with a live mouse pointer, but even in these case, nothing can be launched
(file not found errors or vanishing desktop after a click or simply no action).
Sometimes, (with CTRL-ALT-F1), ext4-fs errors are reported.
Investigation:
All these tests are done on an external usb disk installation, but the exact
same configuration is ok with Ubuntu 12.04. I tried usbcore.autosuspend=-1
kernel option at boot without success.
The bug can be reproduced if I update the kernel from a fresh (and
functional) 12.04 install. Even on Manjaro, the bug appears with (at least)
kernel 3.12.36-1 and 3.16.7.4-1 (but not with 3.10). I tried various
kernels/nvidia combinations on 14.04 without any success (3.13/3.16). It seems
I can't get trace in log files after suspend.
The bug is similar to https://bugs.launchpad.net/ubuntu/+source
/nvidia-graphics-drivers-331/+bug/1210077. However, 1210077 is
supposed to be fixed so this one is different.
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