On 26 Jun 2017, Alan wrote:
I have just upgraded from Jessie to Stretch and my arrangement where I logout and then mythtv shuts my computer down and sets a wakeup time just before the next recording time has stopped working.
I have no help to offer regarding mythtv, or your shutdown/wakeup scheme. I'm interested in your GNU screen problems, though:
In the past when that happens I have set up "screen", and entered an used "sleep 1m && who -u" to find out why its not detecting me as logged out. I set that command running, detach from screen, logout, ensure the minute is up, log back in and re-enter my screen session to see what it made of things. That no longer works.
So, just to be sure we are on the same page, you do all of the above as userjoe and then, after waiting 60 seconds and logging back in again as userjoe, $ screen -ls tells you that there are no sockets in /run/screen/S-userjoe ?
It appears that systemd now kills off all processess associated with the user - or rather I found a bug report that said that had happened about a year ago as the default had changed.
You are refering to one of these bug reports, I guess, which were marked fixed in version systemd/230-2 ? #825941 - screen is killed by systemd when the user logs out https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=825941 #825394 - systemd kill background processes after user logs out https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=825394 I have upgraded a minimal jessie install to stretch, and installed GNU screen after the upgrade, and I am unable to replicate the breakage. I log out, and my detached screen sessions survive. It would be interesting to know what makes the difference. What output do you get for the following four commands? (I include output from my own system here for comparison.) $ systemd --version systemd 232 +PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN $ screen -v Screen version 4.05.00 (GNU) 10-Dec-16 $ uname -a Linux magicbucket 4.9.0-3-amd64 #1 SMP Debian 4.9.30-2+deb9u2 (2017-06-26) x86_64 GNU/Linux $ grep '^[^#]' /etc/apt/sources.list{,.d/*} /etc/apt/sources.list:deb http://debian.univ-lorraine.fr/debian/ stretch main /etc/apt/sources.list:deb-src http://debian.univ-lorraine.fr/debian/ stretch main /etc/apt/sources.list:deb http://security.debian.org/ stretch/updates main /etc/apt/sources.list:deb-src http://security.debian.org/ stretch/updates main /etc/apt/sources.list:deb http://debian.univ-lorraine.fr/debian/ stable-updates main /etc/apt/sources.list:deb-src http://debian.univ-lorraine.fr/debian/ stable-updates main grep: /etc/apt/sources.list.d/*: No such file or directory