CRON screensaver

jumper · Napísal **jumper**: 18.09.2020 13:12

caute,

prosim vas viete mi niekto poradit ako rozchodit cron job aby sa mi v urcitom case aktivoval setric obrazovky a v urcitom case deaktivoval? Skusam to cez

Kód:

crontab -e

tam mam:

Kód:

00 6 * * 1-5 xset dpms force on
00 16 * * 1-5 xset dpms force off

ale ani za .... mi to nefunguje. Xscreensaver mam...ale ak dam do cronu pre test reboot alebo mkdir tak funguje ale screensaver vobec nic.

Prosim o pomoc.

Dik moc

P.S.: chcem to rozbehnut na malinke

void · Napísal **void**: 19.09.2020 11:31

Osobne sa domnievam ze to bude suvisiet s userom pod ktorym bezi xorg vs cron (co by mal byt root). Alebo teda ze cron nevie nad ktorym xorgom ma spustat screensaver.

jumper · Napísal autor témy **jumper**: 21.09.2020 12:44

mozes ma trosku viac usmernit som zaciatocnik v tomto pripadne nejaky manual poslat? Trapim sa stym uz hodnu dobu a stale nic.

Dakujem

void · Napísal **void**: 21.09.2020 13:29

Nuz, je to trochu tazie. Nakolko nemam ziadnbe info o tvojom systeme a pod, tak len hadam, ale chybove hlasky sa loguju do /var/log/.

skus mi teda dat vystup z

Kód:

grep CRON /var/log/syslog

to mozno zodpovie co ma cron za problem. Pripadne skus aj s "cron" miesto "CRON" ak to velkym nic nenapise.

jumper · Napísal autor témy **jumper**: 21.09.2020 13:53

Kód:

Sep 21 08:17:01 km CRON[1392]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 21 08:45:58 km crontab[1520]: (root) BEGIN EDIT (root)
Sep 21 08:46:38 km crontab[1520]: (root) REPLACE (root)
Sep 21 08:46:38 km crontab[1520]: (root) END EDIT (root)
Sep 21 08:47:01 km cron[385]: (root) RELOAD (crontabs/root)
Sep 21 08:50:01 km cron[385]: sendmail: fatal: open /etc/postfix/main.cf: No such file or directory
Sep 21 09:17:01 km CRON[1655]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 21 09:53:43 km crontab[1896]: (root) BEGIN EDIT (root)
Sep 21 10:04:28 km crontab[1896]: (root) REPLACE (root)
Sep 21 10:04:28 km crontab[1896]: (root) END EDIT (root)
Sep 21 10:05:01 km cron[385]: (root) RELOAD (crontabs/root)
Sep 21 10:06:02 km cron[385]: sendmail: fatal: open /etc/postfix/main.cf: No such file or directory
Sep 21 10:08:55 km crontab[1964]: (root) BEGIN EDIT (root)
Sep 21 10:09:03 km crontab[1964]: (root) END EDIT (root)
Sep 21 10:09:23 km crontab[1994]: (root) BEGIN EDIT (root)
Sep 21 10:10:14 km crontab[1994]: (root) REPLACE (root)
Sep 21 10:10:14 km crontab[1994]: (root) END EDIT (root)
Sep 21 10:10:20 km crontab[2018]: (root) BEGIN EDIT (root)
Sep 21 10:10:31 km crontab[2018]: (root) REPLACE (root)
Sep 21 10:10:31 km crontab[2018]: (root) END EDIT (root)
Sep 21 10:11:01 km cron[385]: (root) RELOAD (crontabs/root)
Sep 21 10:12:01 km CRON[2040]: (root) CMD (sudo bash -x /home/pi/Desktop/cronjobs.sh)
Sep 21 10:12:01 km cron[385]: sendmail: fatal: open /etc/postfix/main.cf: No such file or directory
Sep 21 10:12:41 km dbus-daemon[644]: [session uid=1000 pid=644] Activating service name='ca.desrt.dconf' requested by ':1.22' (uid=1000 pid=2066 comm="mousepad /home/pi/Desktop/cronjobs.sh ")
Sep 21 10:17:01 km CRON[2095]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 21 11:17:01 km CRON[2362]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 21 11:25:05 km crontab[2467]: (root) BEGIN EDIT (root)
Sep 21 11:46:31 km crontab[2467]: (root) REPLACE (root)
Sep 21 11:46:31 km crontab[2467]: (root) END EDIT (root)
Sep 21 11:47:01 km cron[385]: (root) RELOAD (crontabs/root)
Sep 21 11:49:01 km CRON[2548]: (root) CMD (sudo /home/pi/cronjobs.sh)
Sep 21 11:49:01 km cron[385]: sendmail: fatal: open /etc/postfix/main.cf: No such file or directory
Sep 21 11:51:01 km cron[385]: sendmail: fatal: open /etc/postfix/main.cf: No such file or directory
Sep 21 12:02:14 km crontab[2612]: (root) BEGIN EDIT (root)
Sep 21 12:02:41 km crontab[2612]: (root) REPLACE (root)
Sep 21 12:02:41 km crontab[2612]: (root) END EDIT (root)
Sep 21 12:03:01 km cron[385]: (root) RELOAD (crontabs/root)
Sep 21 12:04:02 km cron[385]: sendmail: fatal: open /etc/postfix/main.cf: No such file or directory
Sep 21 12:05:58 km crontab[2708]: (root) BEGIN EDIT (root)
Sep 21 12:06:01 km cron[385]: sendmail: fatal: open /etc/postfix/main.cf: No such file or directory
Sep 21 12:06:40 km crontab[2708]: (root) REPLACE (root)
Sep 21 12:06:40 km crontab[2708]: (root) END EDIT (root)
Sep 21 12:07:01 km cron[385]: (root) RELOAD (crontabs/root)
Sep 21 12:10:01 km CRON[2774]: (root) CMD (sudo bash -x /home/pi/cronjobs.sh)
Sep 21 12:10:01 km cron[385]: sendmail: fatal: open /etc/postfix/main.cf: No such file or directory
Sep 21 12:15:01 km CRON[2806]: (root) CMD (sudo bash -x /home/pi/cronjobs.sh)
Sep 21 12:15:01 km cron[385]: sendmail: fatal: open /etc/postfix/main.cf: No such file or directory
Sep 21 12:17:01 km CRON[2831]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 21 12:20:02 km CRON[2859]: (root) CMD (sudo bash -x /home/pi/cronjobs.sh)
Sep 21 12:20:02 km cron[385]: sendmail: fatal: open /etc/postfix/main.cf: No such file or directory
Sep 21 12:25:01 km CRON[2905]: (root) CMD (sudo bash -x /home/pi/cronjobs.sh)
Sep 21 12:25:01 km cron[385]: sendmail: fatal: open /etc/postfix/main.cf: No such file or directory
Sep 21 12:27:15 km crontab[2987]: (root) BEGIN EDIT (root)
Sep 21 12:28:09 km crontab[2987]: (root) REPLACE (root)
Sep 21 12:28:09 km crontab[2987]: (root) END EDIT (root)
Sep 21 12:28:14 km crontab[3010]: (root) BEGIN EDIT (root)
Sep 21 12:28:34 km crontab[3010]: (root) REPLACE (root)
Sep 21 12:28:34 km crontab[3010]: (root) END EDIT (root)
Sep 21 12:29:01 km cron[385]: (root) RELOAD (crontabs/root)
Sep 21 12:30:01 km CRON[3039]: (root) CMD (sudo -u pi /home/pi/cronjobs.sh)
Sep 21 12:30:01 km cron[385]: sendmail: fatal: open /etc/postfix/main.cf: No such file or directory
Sep 21 12:36:29 km crontab[3091]: (root) BEGIN EDIT (root)
Sep 21 12:36:47 km crontab[3091]: (root) REPLACE (root)
Sep 21 12:36:47 km crontab[3091]: (root) END EDIT (root)
Sep 21 12:36:58 km systemd[1]: cron.service: Main process exited, code=killed, status=15/TERM
Sep 21 12:36:58 km systemd[1]: cron.service: Succeeded.
Sep 21 12:36:58 km cron[3121]: (CRON) INFO (pidfile fd = 3)
Sep 21 12:36:58 km cron[3121]: (CRON) INFO (Skipping @reboot jobs -- not system startup)
Sep 21 12:37:04 km crontab[3147]: (root) LIST (root)
Sep 21 12:39:01 km cron[3121]: sendmail: fatal: open /etc/postfix/main.cf: No such file or directory
Sep 21 13:17:01 km CRON[3364]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)

void · Napísal **void**: 21.09.2020 15:43

Ak ale dobre vidim... tak ten skript nikdy nezbehol. Chces to pustat o 6 a o 16, hej?
Ale dal si mi log medzi 8-13. Skus si to nasimulovat a potom sem dat log.
Predpokladam ale stale ze to bud nebude vediet pod akym uzivatelom bez xorg, alebo nebude vediet najst display ktory ma ovladat.

jumper · Napísal autor témy **jumper**: 22.09.2020 13:40

Kód:

Sep 21 15:05:06 km cron[5216]: (CRON) INFO (Skipping @reboot jobs -- not system startup)
Sep 21 15:06:01 km CRON[5277]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:06:01 km CRON[5276]: (root) CMD (sudo -u pi /uesr/bin/xset dpms force off)
Sep 21 15:06:01 km CRON[5268]: (root) MAIL (mailed 40 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:06:01 km CRON[5269]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:07:01 km CRON[5355]: (root) CMD (sudo -u pi /uesr/bin/xset dpms force off)
Sep 21 15:07:01 km CRON[5356]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:07:01 km CRON[5346]: (root) MAIL (mailed 40 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:07:01 km CRON[5347]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:07:04 km cron[5392]: (CRON) INFO (pidfile fd = 3)
Sep 21 15:07:04 km cron[5392]: (CRON) INFO (Skipping @reboot jobs -- not system startup)
Sep 21 15:07:31 km cron[5454]: (CRON) INFO (pidfile fd = 3)
Sep 21 15:07:31 km cron[5454]: (CRON) INFO (Skipping @reboot jobs -- not system startup)
Sep 21 15:08:02 km CRON[5493]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:08:02 km CRON[5489]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:08:03 km CRON[5510]: (root) CMD (sudo -u pi /usr/bin/xset dpms force off)
Sep 21 15:08:03 km CRON[5488]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:09:01 km CRON[5536]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:09:01 km CRON[5537]: (root) CMD (sudo -u pi /usr/bin/xset dpms force off)
Sep 21 15:09:01 km CRON[5529]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:09:01 km CRON[5528]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:10:01 km CRON[5604]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:10:01 km CRON[5605]: (root) CMD (sudo -u pi /usr/bin/xset dpms force off)
Sep 21 15:10:01 km CRON[5596]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:10:01 km CRON[5597]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:11:01 km CRON[5656]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:11:01 km CRON[5652]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:12:02 km CRON[5673]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:12:02 km CRON[5669]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:13:01 km CRON[5690]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:13:01 km CRON[5686]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:14:01 km CRON[5723]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:14:01 km CRON[5719]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:15:01 km CRON[5979]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:15:01 km CRON[5975]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:16:01 km CRON[6004]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:16:02 km CRON[6000]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:17:01 km CRON[6032]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 21 15:17:01 km CRON[6033]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:17:01 km CRON[6025]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:18:01 km CRON[6097]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:18:01 km CRON[6093]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:19:01 km CRON[6119]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:19:01 km CRON[6115]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:20:01 km CRON[6141]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:20:02 km CRON[6137]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:21:01 km CRON[6160]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:21:01 km CRON[6156]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:22:01 km CRON[6177]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:22:01 km CRON[6173]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:23:01 km CRON[6201]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:23:01 km CRON[6197]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:24:01 km CRON[6219]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:24:01 km CRON[6215]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:25:02 km CRON[6251]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:25:02 km CRON[6246]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:26:01 km CRON[6332]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:26:01 km CRON[6328]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:27:01 km CRON[6389]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:27:01 km CRON[6385]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:28:01 km CRON[6411]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:28:01 km CRON[6412]: (root) CMD (sudo -u root krusader)
Sep 21 15:28:01 km CRON[6403]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:28:02 km CRON[6404]: (root) MAIL (mailed 171 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:29:01 km CRON[6444]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:29:01 km CRON[6440]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:30:01 km CRON[6465]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:30:01 km CRON[6461]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:31:02 km CRON[6485]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:31:02 km CRON[6481]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:32:01 km CRON[6502]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:32:01 km CRON[6498]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:33:01 km CRON[6521]: (root) CMD (sudo -u root /usr/bin/xset dpms force off)
Sep 21 15:33:01 km CRON[6517]: (root) MAIL (mailed 42 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:35:01 km CRON[6578]: (root) CMD (sudo -u root krusader)
Sep 21 15:35:02 km CRON[6574]: (root) MAIL (mailed 171 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:41:01 km CRON[6733]: (root) CMD (sudo -u root krusader)
Sep 21 15:41:01 km CRON[6729]: (root) MAIL (mailed 171 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:44:51 km cron[6873]: (CRON) INFO (pidfile fd = 3)
Sep 21 15:44:51 km cron[6873]: (CRON) INFO (Skipping @reboot jobs -- not system startup)
Sep 21 15:46:01 km CRON[6914]: (root) CMD (sudo -u root krusader)
Sep 21 15:46:01 km CRON[6910]: (root) MAIL (mailed 171 bytes of output but got status 0x004b from MTA#012)
Sep 21 15:47:50 km cron[6991]: (CRON) INFO (pidfile fd = 3)
Sep 21 15:47:50 km cron[6991]: (CRON) INFO (Skipping @reboot jobs -- not system startup)
Sep 21 15:50:02 km CRON[7021]: (root) CMD (sudo -u root xset dpms force off)
Sep 21 15:50:02 km CRON[7017]: (root) MAIL (mailed 33 bytes of output but got status 0x004b from MTA#012)

na 15:50 som mal simulaciu vypnutia

void · Napísal **void**: 22.09.2020 15:01

ked to spravis manualne, zbehne to?
Teda nie ze to zavolas cez cron, ale z konzoly? Ako aky uzivatel si prihlaseny? Root velmi casto nema pod sebou beziaci xorg, mas tam aj inych userov? Skus sem hodit cely log medzi 15:50 a 15:51.

jumper · Napísal autor témy **jumper**: 22.09.2020 15:16

ak to dam cez konzolu funguje mi to. Som prihlaseny ako uzivatel: pi. Vyplulo mi iba toto co som daval vyssie.

void · Napísal **void**: 22.09.2020 17:10

Tak xorg nebezi pod root ale pod pi. (Normalne)

Kód:

sudo -u root xset dpms force off

Takto to pustas, hej? Lebo podla tohto to pustas pod root-om a podla toho co pises xorg bezi pod userom pi.

jumper · Napísal autor témy **jumper**: 23.09.2020 14:08

skusim som to prepisat na

Kód:

sudo -u pi xset dpms force off

a tu je log stale mi nefunguje ale skusim ist nastudovat to xorg

Kód:

Sep 23 00:16:01 km CRON[2843]: (pi) CMD (xset dpms force off)
Sep 23 00:16:01 km CRON[2839]: (pi) MAIL (mailed 33 bytes of output but got status 0x004b from MTA#012)
Sep 23 00:17:01 km CRON[2863]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 23 01:17:01 km CRON[3005]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 23 02:17:02 km CRON[3132]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 23 03:17:01 km CRON[3263]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 23 04:17:01 km CRON[3399]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 23 05:17:01 km CRON[3537]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 23 05:58:01 km CRON[3632]: (pi) CMD (xset dpms force on)
Sep 23 05:58:01 km CRON[3628]: (pi) MAIL (mailed 33 bytes of output but got status 0x004b from MTA#012)
Sep 23 06:17:01 km CRON[3678]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 23 06:25:01 km CRON[3705]: (root) CMD (test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ))
Sep 23 07:17:01 km CRON[3925]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 23 08:17:01 km CRON[4060]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 23 09:17:02 km CRON[4193]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 23 10:17:01 km CRON[4336]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 23 11:17:01 km CRON[4471]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 23 12:17:01 km CRON[4614]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 23 13:17:01 km CRON[4804]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Sep 23 13:54:45 km cron[4944]: (CRON) INFO (pidfile fd = 3)
Sep 23 13:54:45 km cron[4944]: (CRON) INFO (Skipping @reboot jobs -- not system startup)
Sep 23 13:57:01 km CRON[4973]: (root) CMD (sudo -u pi xset dpms force off)
Sep 23 13:57:02 km CRON[4969]: (root) MAIL (mailed 33 bytes of output but got status 0x004b from MTA#012)

este ak dam status cron-u tak toto (neviem ci pomoze)

Kód:

sudo /etc/init.d/cron status
● cron.service - Regular background program processing daemon
   Loaded: loaded (/lib/systemd/system/cron.service; enabled; vendor preset: enabled)
   Active: active (running) since Wed 2020-09-23 13:54:45 CEST; 27min ago
     Docs: man:cron(8)
 Main PID: 4944 (cron)
    Tasks: 1 (limit: 2065)
   CGroup: /system.slice/cron.service
           └─4944 /usr/sbin/cron -f

Sep 23 14:17:01 km CRON[5110]: pam_unix(cron:session): session closed for user root
Sep 23 14:19:01 km cron[4944]: (root) RELOAD (crontabs/root)
Sep 23 14:21:01 km CRON[5287]: pam_unix(cron:session): session opened for user root by (uid=0)
Sep 23 14:21:01 km CRON[5291]: (root) CMD (sudo -u pi xset dpms force off)
Sep 23 14:21:01 km sudo[5292]:     root : TTY=unknown ; PWD=/root ; USER=pi ; COMMAND=/usr/bin/xset dpms force off
Sep 23 14:21:01 km sudo[5292]: pam_unix(sudo:session): session opened for user pi by (uid=0)
Sep 23 14:21:01 km sudo[5292]: pam_unix(sudo:session): session closed for user pi
Sep 23 14:21:01 km cron[4944]: sendmail: fatal: open /etc/postfix/main.cf: No such file or directory
Sep 23 14:21:01 km CRON[5287]: (root) MAIL (mailed 33 bytes of output but got status 0x004b from MTA
                               )
Sep 23 14:21:01 km CRON[5287]: pam_unix(cron:session): session closed for user root

void · Napísal **void**: 24.09.2020 13:43

Skus to prosim ta pustit manualne, ci to ide. Najprv cez to co som posielal v poslednej sprave. (sudo -u root .... ) A ak nepojde hod sem co ti konzola odpovedala a potom to skus manualne cez ten druhy prikaz na ktory si to skusil prepisat a znovu sem hod vypis z konzoly ak to nepojde.

jumper · Napísal autor témy **jumper**: 24.09.2020 16:13

manualne ak to spustim tak ci tak funguje to len cez ten cron nereaguje.

Ale docasne som to vyriesil inak (nechcel som vypinat signal HDMI ale zatial to musi byt takto cas ma tlacil). Docasne riesenie je tento prikaz a funguje aj cez cron

Kód:

0 6 * * 1-5 /usr/bin/vcgencmd display_power 1 
30 15 * * 1-5 /usr/bin/vcgencmd display_power 0

Ale chcem to urobit cez screensaver ak by niekto potreboval sa aj mimo casu zapnutia pozriet na monitor.

CRON screensaver

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