Dotaz: nacitanie modulu po prebudeni

[jany2]

V PC mam DVB kartu, ktora po prebudeni nefunguje. Cez lsmod som zistil, ktory modul treba odstaranit a znova zaviest, tak som skusil

modprobe -r cx88_dvb
modprobe cx88_dvb

Teraz vsetko funguje. Chcem to automatizovat, tak som spravil nasledovne

sudo nano /lib/systemd/system-sleep/dvbwakeup

#!/bin/sh
case "$1" in
    pre)
        modprobe -r cx88_dvb
        ;;
    post)
        modprobe cx88_dvb
        ;;
esac

Skusil som aj takto

#!/bin/sh
 
case $1 in
  post)
    rmmod cx88_dvb
    modprobe cx88_dvb
    ;;
esac

sudo chmod +x /lib/systemd/system-sleep/dvbwakeup

ale po prebudeni sa podla mna modul ani neodoberie a ani nezavedie, pretoze dvb karta nefunguje. Ked to znova urobim rucne, tak to funguje. Trapim sa s tym uz asi hodinu :(

Kernel

5.0.0-32-generic

Odpovědi

[debian+]

https://unix.stackexchange.com/a/492497

[debian+]

Inac, po vytvoreni suboru si dal reload systemd konfiguracie?

[jany2]

Po testovani som zistil, ze situacia je trocha odlisna ako som uviedol v prvej otazke.

Ak zapnem pocitac, tak potrebne moduly su zavedene a DVB karta funguje normalne. Ked pocitac uspim a po opatovnom zapnuti spustim dvblast, tak DVB karta nefunguje vid. "debug: - SNR: 0" (aj ked BER je 0 co je idealne a Signal strength: 51547 (nerozumiem tomu cislu)).

dvblast -a 0 -m psk_8 -f 12363000 -s 29500000 -v 13 --pilot 1 -c config-12363
DVBlast 3.1 (release)
warning: restarting
debug: compiled with DVB API version 5.10
debug: using DVB API version 5.11
debug: Frontend "TurboSight TBS 8922 DVB-S/S2" supports:
debug:  frequency min: 950000, max: 2150000, stepsize: 0, tolerance: 0
debug:  symbolrate min: 1000000, max: 45000000, tolerance: 0
debug:  capabilities:
debug:   INVERSION_AUTO
debug:   FEC_1_2
debug:   FEC_2_3
debug:   FEC_3_4
debug:   FEC_4_5
debug:   FEC_5_6
debug:   FEC_6_7
debug:   FEC_7_8
debug:   FEC_AUTO
debug:   QPSK
debug:   2G_MODULATION
debug:   FE_CAN_RECOVER
debug:  delivery systems:
debug:   DVBS
debug:   DVBS2
debug: frequency 12363000 is in Ku-band (higher)
debug: configuring LNB to v=13 p=0 satnum=0 uncommitted=0
debug: tuning DVB-S frontend to f=12363000 srate=29500000 inversion=-1 fec=999 rolloff=35 modulation=psk_8 pilot=1 mis=0
warning: failed opening CAM device /dev/dvb/adapter0/ca0 (No such file or directory)
debug: setting filter on PID 0
debug: setting filter on PID 16
debug: setting filter on PID 17
debug: setting filter on PID 18
debug: setting filter on PID 19
debug: setting filter on PID 20
debug: conf: 225.0.0.41:20000 config=0x1 sid=4904 pids[0]
debug: change sid tsid network 
debug: conf: 225.0.0.42:20000 config=0x1 sid=4910 pids[0]
debug: change sid tsid network 
debug: conf: 225.0.0.43:20000 config=0x1 sid=4912 pids[0]
debug: change sid tsid network 
debug: conf: 225.0.0.44:20000 config=0x1 sid=4913 pids[0]
debug: change sid tsid network 
debug: conf: 225.0.0.45:20000 config=0x1 sid=4914 pids[0]
debug: change sid tsid network 
debug: conf: 225.0.0.46:20000 config=0x1 sid=4917 pids[0]
debug: change sid tsid network 
debug: frontend has acquired signal
debug: frontend has acquired carrier
debug: frontend has acquired stable FEC
debug: frontend has acquired sync
info: frontend has acquired lock
lock status: 1
debug: - Bit error rate: 0
debug: - Signal strength: 51547
debug: - SNR: 0
^Cinfo: Shutdown was requested.

dvblast zhodim a spustim opatovne a zrazu to funguje aj bez zhodenia a zavedenia modulu. Cize na prvy sup to nefunguje, ale na druhy sup to uz funguje.

Ak po prebudeni PC zhodim a zavediem modul rucne, tak to funguje na prvy sup.

Skusal som to aj podla postupu co si sem postol, vytvorit service, enable, start ... ale ked som pozrel status service, tak sluzba bola inactive

[debian+]

moj nazor minimalne 2 moznosti:

1) problem s casovou iniciativou 2) tak spusti skript po prebudeni nieco v tom duchu?

run_me&
sleep 2
killall -s SIGKILL run_me 2> /dev/null
run_me&

[jany2]

Priznam sa, ze do systemd az tak nevidim, ale predpokladam, ze ak je skript s prislusnymi pravami +x ulozeny do

/lib/systemd/system-sleep/

tak sa po prebudeni PC vykona. Nemyslim si, ze sleep v skripte by pomohlo.

BTW aj ked nepouzijem skript, tak DVB karta nema pri spusteny dvblast/tvheadend signal, ale ak zmenim kanal, tak vsetko funguje, takze na teraz to nebudem riesit.

btw dik za cenne rady