Parallel port printer 1. lsmod | grep lp ablk_helper 13357 1 aesni_intel cryptd 15578 1 ablk_helper lpc_ich 16864 0 lp 13299 2 parport 40836 3 lp,ppdev,parport_pc drm_kms_helper 47182 1 i915 drm 244037 4 i915,drm_kms_helper 2. lsmod | grep ppdev ppdev 17391 0 parport 40836 3 lp,ppdev,parport_pc 3. lsmod | grep parport_pc parport_pc 31981 1 parport 40836 3 lp,ppdev,parport_pc 4. dmesg | grep par [ 0.000000] Booting paravirtualized kernel on bare hardware [ 0.104613] regulator-dummy: no parameters [ 0.176070] hpet0: 8 comparators, 64-bit 14.318180 MHz counter [ 0.598642] Asymmetric key parser 'x509' registered [ 1.079043] ahci 0000:00:1f.2: flags: 64bit ncq pm led clo pio slum part ems [ 18.876857] parport_pc 00:0a: reported by Plug and Play ACPI [ 18.876915] parport0: PC-style at 0x378 (0x778), irq 7, dma 3 [PCSPP,TRISTATE,COMPAT,ECP,DMA] [ 18.891608] ppdev: user-space parallel port driver [ 19.093530] parport0: Printer, EPSON LQ-300+ [ 19.093631] lp0: using parport0 (interrupt-driven). [ 19.177332] type=1400 audit(1418830750.618:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/sbin/dhclient" pid=533 comm="apparmor_parser" [ 19.177338] type=1400 audit(1418830750.618:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=533 comm="apparmor_parser" [ 19.177342] type=1400 audit(1418830750.618:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=533 comm="apparmor_parser" [ 19.177350] type=1400 audit(1418830750.618:5): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/sbin/dhclient" pid=523 comm="apparmor_parser" [ 19.177355] type=1400 audit(1418830750.618:6): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=523 comm="apparmor_parser" [ 19.177360] type=1400 audit(1418830750.618:7): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=523 comm="apparmor_parser" [ 19.177784] type=1400 audit(1418830750.618:8): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=533 comm="apparmor_parser" [ 19.177789] type=1400 audit(1418830750.618:9): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=533 comm="apparmor_parser" [ 19.177800] type=1400 audit(1418830750.618:10): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=523 comm="apparmor_parser" [ 19.177804] type=1400 audit(1418830750.618:11): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=523 comm="apparmor_parser" [ 19.735492] init: Failed to obtain startpar-bridge instance: Unknown parameter: INSTANCE [ 27.942268] type=1400 audit(1418830759.382:14): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=1021 comm="apparmor_parser" [ 27.942272] type=1400 audit(1418830759.382:15): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/cupsd" pid=1021 comm="apparmor_parser" [ 27.942545] type=1400 audit(1418830759.382:16): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=1021 comm="apparmor_parser" [ 28.126293] type=1400 audit(1418830759.566:17): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/sbin/dhclient" pid=1051 comm="apparmor_parser" [ 28.126301] type=1400 audit(1418830759.566:18): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1051 comm="apparmor_parser" [ 28.126306] type=1400 audit(1418830759.566:19): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=1051 comm="apparmor_parser" [ 28.126738] type=1400 audit(1418830759.566:20): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1051 comm="apparmor_parser" [ 28.126742] type=1400 audit(1418830759.566:21): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=1051 comm="apparmor_parser" [ 28.126885] type=1400 audit(1418830759.566:22): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=1051 comm="apparmor_parser" [ 28.127158] type=1400 audit(1418830759.566:23): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/lightdm/lightdm-guest-session" pid=1050 comm="apparmor_parser" [ 58.000535] type=1400 audit(1418830789.426:68): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=2802 comm="apparmor_parser" [ 58.000540] type=1400 audit(1418830789.426:69): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2802 comm="apparmor_parser" [ 58.000817] type=1400 audit(1418830789.426:70): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2802 comm="apparmor_parser" [ 142.124143] type=1400 audit(1418830873.514:71): apparmor="DENIED" operation="signal" profile="/usr/sbin/cupsd" pid=2803 comm="cupsd" requested_mask="send" denied_mask="send" signal=term peer="unconfined" [ 142.124151] type=1400 audit(1418830873.514:72): apparmor="DENIED" operation="signal" profile="/usr/sbin/cupsd" pid=2803 comm="cupsd" requested_mask="send" denied_mask="send" signal=term peer="unconfined" [ 142.124155] type=1400 audit(1418830873.514:73): apparmor="DENIED" operation="signal" profile="/usr/sbin/cupsd" pid=2803 comm="cupsd" requested_mask="send" denied_mask="send" signal=term peer="unconfined" [ 142.124158] type=1400 audit(1418830873.514:74): apparmor="DENIED" operation="signal" profile="/usr/sbin/cupsd" pid=2803 comm="cupsd" requested_mask="send" denied_mask="send" signal=term peer="unconfined" [ 142.124160] type=1400 audit(1418830873.514:75): apparmor="DENIED" operation="signal" profile="/usr/sbin/cupsd" pid=2803 comm="cupsd" requested_mask="send" denied_mask="send" signal=term peer="unconfined" [ 142.124163] type=1400 audit(1418830873.514:76): apparmor="DENIED" operation="signal" profile="/usr/sbin/cupsd" pid=2803 comm="cupsd" requested_mask="send" denied_mask="send" signal=term peer="unconfined" [ 142.124166] type=1400 audit(1418830873.514:77): apparmor="DENIED" operation="signal" profile="/usr/sbin/cupsd" pid=2803 comm="cupsd" requested_mask="send" denied_mask="send" signal=term peer="unconfined" 5. ls -l /dev/lp* /dev/parport* crw-rw---- 1 root lp 6, 0 Des 17 2014 /dev/lp0 crw-rw-r-- 1 root lp 99, 0 Des 17 2014 /dev/parport0 6. ls -l /proc/sys/dev/parport/parport*/autoprobe* -r--r--r-- 1 root root 0 Des 17 14:41 /proc/sys/dev/parport/parport0/autoprobe -r--r--r-- 1 root root 0 Des 17 14:41 /proc/sys/dev/parport/parport0/autoprobe0 -r--r--r-- 1 root root 0 Des 17 14:41 /proc/sys/dev/parport/parport0/autoprobe1 -r--r--r-- 1 root root 0 Des 17 14:41 /proc/sys/dev/parport/parport0/autoprobe2 -r--r--r-- 1 root root 0 Des 17 14:41 /proc/sys/dev/parport/parport0/autoprobe3 7. cat /proc/sys/dev/parport/parport*/autoprobe* CLASS:PRINTER; MODEL:LQ-300+; MANUFACTURER:EPSON; DESCRIPTION:EPSON LQ-300+; COMMAND SET:ESCPL2,PRPXL24,BDC,D4; 8. lpinfo -v network socket network http network https network ipps network ipp14 network lpd network smb serial serial:/dev/ttyS1?baud=115200 direct hp network ipp network dnssd://Canon%20E510%20%40%20pegadaian-OptiPlex-780._ipp._tcp.local/cups network dnssd://Canon%20E510%20series%20-%20Mantap%20%40%20pegadaian-OptiPlex-780._ipp._tcp.local/cups network dnssd://Canon%20E510%20series%20%40%20pegadaian-OptiPlex-780._ipp._tcp.local/cups network dnssd://Canon%20E510%20series%20%40%20timedan-OptiPlex-794._ipp._tcp.local/cups network dnssd://Canon%20E510%20series%20%40%20timedan-OptiPlex-795._ipp._tcp.local/cups network dnssd://Canon%20E510%20siswo%20%40%20pegadaian-OptiPlex-780._ipp._tcp.local/cups network dnssd://Canon%20MP250%20%40%20timedan-OptiPlex-790._ipp._tcp.local/cups network dnssd://Canon%20MP250%20series%20%40%20timedan-OptiPlex-790._ipp._tcp.local/cups network dnssd://Canon%20MP280%20series%20%40%20timedan-OptiPlex-793._ipp._tcp.local/cups network dnssd://Canon%20MP280%20series%20%40%20timedan-OptiPlex-794._ipp._tcp.local/cups network dnssd://Canon%20MP280%20series%20%40%20timedan-OptiPlex-797._ipp._tcp.local/cups network dnssd://Canon%20MP280%20series%20%40%20timedan-OptiPlex-798._ipp._tcp.local/cups network dnssd://Canon%20MP280%20series%20%40%20timedan-OptiPlex-811._ipp._tcp.local/cups network dnssd://Canon%20MX320%20series%20%40%20timedan-OptiPlex-808._ipp._tcp.local/cups network dnssd://Canon%20iP2700%20series%20%40%20timedan-OptiPlex-807._ipp._tcp.local/cups network dnssd://EPSON%20Epson%20Stylus%20Office%20TX510FN%20%40%20timedan-OptiPlex-790._ipp._tcp.local/cups network dnssd://EPSON%20L210%20Series%20%40%20pegadaian-OptiPlex-780._ipp._tcp.local/cups network dnssd://EPSON%20L210%20Series%20%40%20timedan-OptiPlex-800._ipp._tcp.local/cups network dnssd://EPSON%20LQ-2190%20%40%20timedan-OptiPlex-803._ipp._tcp.local/cups network dnssd://EPSON%20LQ-2190%20%40%20timedan-OptiPlex-809._ipp._tcp.local/cups network dnssd://Generic%20text-only%20%40%20pegadaian-OptiPlex-780._ipp._tcp.local/cups network dnssd://Hewlett-Packard%20HP%20LaserJet%20Professional%20P11%20%40%20pegadaian-OptiPl._ipp._tcp.local/cups 9. /usr/lib/cups/backend/parallel no result