Joe's questions

Tenho uma impressora multifuncional Brother HLL2390DW conectada por USB ao meu notebook Kubuntu 22.04 usando brother-HLL2390DW-cups-en.ppdo site deles.

Se eu emitir um , lp file1.pdfele funciona bem, mas se eu emitir um lp file1.pdf file2.pdf, a impressora desperta, mas não imprime nada.

/var/log/cups/error_logmostra:

W [23/Nov/2024:00:00:28 -0500] Printer drivers are deprecated and will stop working in a future version of CUPS. See https://github.com/OpenPrinting/cups/issues/103
W [23/Nov/2024:02:05:49 -0500] Printer drivers are deprecated and will stop working in a future version of CUPS. See https://github.com/OpenPrinting/cups/issues/103
W [23/Nov/2024:05:17:30 -0500] Printer drivers are deprecated and will stop working in a future version of CUPS. See https://github.com/OpenPrinting/cups/issues/103
E [23/Nov/2024:18:22:58 -0500] [Job 66] Unable to add document to print job.
E [23/Nov/2024:18:46:36 -0500] [Job 67] Unable to add document to print job.
E [23/Nov/2024:18:59:48 -0500] [Job 69] Print job canceled at printer.
W [23/Nov/2024:18:59:48 -0500] [Job 69] Backend returned status 5 (cancel job)
E [23/Nov/2024:19:04:23 -0500] [Job 70] Unable to add document to print job.
E [23/Nov/2024:19:04:31 -0500] [Job 70] Print job canceled at printer.
W [23/Nov/2024:19:04:31 -0500] [Job 70] Backend returned status 5 (cancel job)

$ lpstat -a
Brother_HL_L2390DW_USB not accepting requests since Sat 23 Nov 2024 05:36:03 PM EST -
        Rejecting Jobs
BrotherHLL2390D not accepting requests since Sat 02 Nov 2024 08:10:19 PM EDT -
        Rejecting Jobs
HLL2390DW accepting requests since Sat 23 Nov 2024 07:12:01 PM EST

Os outros dois casos foram de tentativas anteriores de conectar a impressora como uma impressora em rede usando um adaptador de servidor de impressão Ethernet para USB, etc. (Farei uma pergunta separada sobre isso quando funcionar.) Eu os desativei manualmente.

Eu sou um usuário simples do pulseaudio. Sem configurações especiais.

Uso o kubuntu 18.04 com bom áudio neste notebook há anos.

Um mês ou dois atrás, uma atualização do kernel quebrou meu áudio, então reverti para o kernel anterior até que o próximo fosse lançado, que funcionou novamente.

Acabei de instalar algumas atualizações normais no meu sistema e o áudio não funciona mais.

Eu não reinicio com muita frequência - a menos que uma atualização exija, então não tenho certeza se algo quebrou, mas não se manifestou até que eu tivesse que reiniciar para o novo kernel.

Como posso consertar isso?

Acabei de reiniciar e meu áudio sumiu. O aparelho desapareceu. (kubuntu 18.04 Intel 64 bits)

Estava funcionando bem mais cedo ontem.

Tentei voltar ao kernel anterior.

Eu tentei algumas versões anteriores do linux-firmware.

dmesg mostra isso

[Tue Jul 14 11:40:17 2020] snd_hda_codec_conexant hdaudioC1D0: CX20756:
BIOS auto-probing.
[Tue Jul 14 11:40:17 2020] snd_hda_codec_conexant hdaudioC1D0:
autoconfig for CX20756: line_outs=1 (0x17/0x0/0x0/0x0/0x0) type:speak$
[Tue Jul 14 11:40:17 2020] snd_hda_codec_conexant hdaudioC1D0:   
speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[Tue Jul 14 11:40:17 2020] snd_hda_codec_conexant hdaudioC1D0:   
hp_outs=1 (0x16/0x0/0x0/0x0/0x0)
[Tue Jul 14 11:40:17 2020] snd_hda_codec_conexant hdaudioC1D0:    mono:
mono_out=0x0
[Tue Jul 14 11:40:17 2020] snd_hda_codec_conexant hdaudioC1D0:    inputs:
[Tue Jul 14 11:40:17 2020] snd_hda_codec_conexant hdaudioC1D0:     
Internal Mic=0x1a
[Tue Jul 14 11:40:17 2020] snd_hda_codec_conexant hdaudioC1D0:      Mic=0x19
[Tue Jul 14 11:40:17 2020] snd_hda_codec_conexant hdaudioC1D0: Enable
sync_write for stable communication
[Tue Jul 14 11:40:17 2020] input: HDA Intel PCH Mic as
/devices/pci0000:00/0000:00:1b.0/sound/card1/input15
[Tue Jul 14 11:40:17 2020] input: HDA Intel PCH Headphone as
/devices/pci0000:00/0000:00:1b.0/sound/card1/input16
[Tue Jul 14 11:40:17 2020] input: HDA Intel HDMI HDMI/DP,pcm=3 as
/devices/pci0000:00/0000:00:03.0/sound/card0/input17
[Tue Jul 14 11:40:17 2020] input: HDA Intel HDMI HDMI/DP,pcm=7 as
/devices/pci0000:00/0000:00:03.0/sound/card0/input18
[Tue Jul 14 11:40:17 2020] input: HDA Intel HDMI HDMI/DP,pcm=8 as
/devices/pci0000:00/0000:00:03.0/sound/card0/input19
[Tue Jul 14 11:40:17 2020] input: HDA Intel HDMI HDMI/DP,pcm=9 as
/devices/pci0000:00/0000:00:03.0/sound/card0/input20
[Tue Jul 14 11:40:17 2020] input: HDA Intel HDMI HDMI/DP,pcm=10 as
/devices/pci0000:00/0000:00:03.0/sound/card0/input21

Isso é um monte de zeros, mas não sei como fica quando funciona.

Tentei reproduzir um mp3 e o Amarok diz que não há dispositivo - voltando ao padrão.

As configurações do sistema mostram apenas o padrão. Geralmente, há um dispositivo analógico e um dispositivo digital (HDMI).

Eu passei pelo meu histórico de pacotes e nada mais salta para mim.

bigbird@sananda:~/sandbox$ pulseaudio --check
bigbird@sananda:~/sandbox$ echo $?
1
bigbird@sananda:~/sandbox$ pulseaudio --start
E: [pulseaudio] main.c: Daemon startup failed.

Não, não está funcionando e também não quer.

bigbird@sananda:~/sandbox$ export PULSE_LOG=99
bigbird@sananda:~/sandbox$ pulseaudio --start
D: [pulseaudio] caps.c: Cleaning up privileges.
D: [pulseaudio] conf-parser.c: Parsing configuration file '/etc/pulse/daemon.conf'
D: [pulseaudio] conf-parser.c: /etc/pulse/daemon.conf.d does not exist, ignoring.
D: [pulseaudio] conf-parser.c: Parsing configuration file '/etc/pulse/client.conf'
D: [pulseaudio] conf-parser.c: /etc/pulse/client.conf.d does not exist, ignoring.
E: [pulseaudio] main.c: Daemon startup failed.

bigbird@sananda:/etc/pulse$ ls
client.conf  daemon.conf  default.pa  default.pa.dpkg-old  system.pa

Então, eu tenho arquivos .conf, mas nenhum arquivo conf.d.

bigbird@sananda:/etc/pulse$ pulseaudio -vvvvv
D: [pulseaudio] caps.c: Cleaning up privileges.
D: [pulseaudio] conf-parser.c: Parsing configuration file '/etc/pulse/daemon.conf'
D: [pulseaudio] conf-parser.c: /etc/pulse/daemon.conf.d does not exist, ignoring.
I: [pulseaudio] main.c: setrlimit(RLIMIT_NICE, (31, 31)) failed: Operation not permitted
I: [pulseaudio] main.c: setrlimit(RLIMIT_RTPRIO, (9, 9)) failed: Operation not permitted
D: [pulseaudio] core-rtclock.c: Timer slack is set to 50 us.
D: [pulseaudio] core-util.c: RealtimeKit worked.
I: [pulseaudio] core-util.c: Successfully gained nice level -11.
I: [pulseaudio] main.c: This is PulseAudio 11.1
D: [pulseaudio] main.c: Compilation host: x86_64-pc-linux-gnu
D: [pulseaudio] main.c: Compilation CFLAGS: -g -O2 -fdebug-prefix-map=/build/pulseaudio-3lFkjS/pulseaudio-11.1=. -fstack-protector-strong -Wformat -Werror=format-security -Wall -W -Wextra -pipe -Wno-long-long -Wno-overlength-strings -Wunsafe-loop-optimizations -Wundef -Wformat=2 -Wlogical-op -Wsign-compare -Wformat-security -Wmissing-include-dirs -Wformat-nonliteral -Wpointer-arith -Winit-self -Wdeclaration-after-statement -Wfloat-equal -Wmissing-prototypes -Wredundant-decls -Wmissing-declarations -Wmissing-noreturn -Wshadow -Wendif-labels -Wcast-align -Wstrict-aliasing -Wwrite-strings -Wno-unused-parameter -ffast-math -fno-common -fdiagnostics-show-option -fdiagnostics-color=auto
D: [pulseaudio] main.c: Running on host: Linux x86_64 4.15.0-109-generic #110-Ubuntu SMP Tue Jun 23 02:39:32 UTC 2020
D: [pulseaudio] main.c: Found 4 CPUs.
I: [pulseaudio] main.c: Page size is 4096 bytes
D: [pulseaudio] main.c: Compiled with Valgrind support: no
D: [pulseaudio] main.c: Running in valgrind mode: no
D: [pulseaudio] main.c: Running in VM: no
D: [pulseaudio] main.c: Optimized build: yes
D: [pulseaudio] main.c: FASTPATH defined, only fast path asserts disabled.
I: [pulseaudio] main.c: Machine ID is 02069b02445e453a99fc7b9858bb4a27.
I: [pulseaudio] main.c: Session ID is 3.
I: [pulseaudio] main.c: Using runtime directory /run/user/1000/pulse.
I: [pulseaudio] main.c: Using state directory /home/bigbird/.config/pulse.
I: [pulseaudio] main.c: Using modules directory /usr/lib/pulse-11.1/modules.
I: [pulseaudio] main.c: Running in system mode: no
I: [pulseaudio] main.c: System supports high resolution timers
D: [pulseaudio] memblock.c: Using shared memfd memory pool with 1024 slots of size 64.0 KiB each, total size is 64.0 MiB, maximum usable slot size is 65472
I: [pulseaudio] cpu-x86.c: CPU flags: CMOV MMX SSE SSE2 SSE3 SSSE3 SSE4_1 SSE4_2
I: [pulseaudio] svolume_mmx.c: Initialising MMX optimized volume functions.
I: [pulseaudio] remap_mmx.c: Initialising MMX optimized remappers.
I: [pulseaudio] svolume_sse.c: Initialising SSE2 optimized volume functions.
I: [pulseaudio] remap_sse.c: Initialising SSE2 optimized remappers.
I: [pulseaudio] sconv_sse.c: Initialising SSE2 optimized conversions.
I: [pulseaudio] svolume_orc.c: Initialising ORC optimized volume functions.
W: [pulseaudio] module-equalizer-sink.c: module-equalizer-sink is currently unsupported, and can sometimes cause PulseAudio crashes, increased latency or audible artifacts.
W: [pulseaudio] module-equalizer-sink.c: If you're facing audio problems, try unloading this module as a potential workaround.
E: [pulseaudio] module-equalizer-sink.c: Master sink not found
E: [pulseaudio] module.c: Failed to load module "module-equalizer-sink" (argument: ""): initialization failed.
E: [pulseaudio] main.c: Module load failed.
E: [pulseaudio] main.c: Failed to initialize daemon.
I: [pulseaudio] main.c: Daemon terminated.

bigbird@sananda:/etc/pulse$ aplay -l
**** List of PLAYBACK Hardware Devices ****
Parsing configuration file '/etc/pulse/client.conf'
/etc/pulse/client.conf.d does not exist, ignoring.
Using shared memfd memory pool with 1024 slots of size 64.0 KiB each, total size is 64.0 MiB, maximum usable slot size is 65472
Trying to connect to /run/user/1000/pulse/native...
connect(): No such file or directory (2)
Trying to connect to /var/run/pulse/native...
connect(): No such file or directory (2)
Trying to autospawn...
D: [pulseaudio] caps.c: Cleaning up privileges.
D: [pulseaudio] conf-parser.c: Parsing configuration file '/etc/pulse/daemon.conf'
D: [pulseaudio] conf-parser.c: /etc/pulse/daemon.conf.d does not exist, ignoring.
card 0: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 10: HDMI 4 [HDMI 4]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 0: CX20756 Analog [CX20756 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
bigbird@sananda:/etc/pulse$ cd
bigbird@sananda:~$ ls .pulse
ls: cannot access '.pulse': No such file or directory
bigbird@sananda:~$ ls .config/pulse
02069b02445e453a99fc7b9858bb4a27-card-database.tdb   0be654d3d90b45c69c8747978a3a29fc-device-volumes.tdb
02069b02445e453a99fc7b9858bb4a27-default-sink        0be654d3d90b45c69c8747978a3a29fc-runtime
02069b02445e453a99fc7b9858bb4a27-default-source      0be654d3d90b45c69c8747978a3a29fc-stream-volumes.tdb
02069b02445e453a99fc7b9858bb4a27-device-manager.tdb  cookie
02069b02445e453a99fc7b9858bb4a27-device-volumes.tdb  default.pa
02069b02445e453a99fc7b9858bb4a27-runtime             equalizer-presets.tdb
02069b02445e453a99fc7b9858bb4a27-stream-volumes.tdb  equalizer-state.tdb
0be654d3d90b45c69c8747978a3a29fc-card-database.tdb   equalizerrc
0be654d3d90b45c69c8747978a3a29fc-default-sink        equalizerrc.availablepresets
0be654d3d90b45c69c8747978a3a29fc-default-source      presets
0be654d3d90b45c69c8747978a3a29fc-device-manager.tdb
bigbird@sananda:~$

TL;DR: Qual é a nova maneira correta de fazer um gráfico a sudopartir de um script de shell?

Debatendo:

Acabei de atualizar do kubuntu 16.04 para 18.04 e estou fazendo a triagem normal.

kdesudodesapareceu em 18.04 (sem manutenção).

Eu o uso muito em scripts bash com GUI i/o.

Algumas postagens diziam usar kdesu- o que parece estranho. Parece que me lembro que isso mexe com o usuário efetivo ou algo assim.

Isso não está instalado no meu PATH.

eu encontrei em

bigbird@sananda:~/pq$ ls -l /etc/alternatives/kdesu
rwxrwxrwx 1 root root 41 Aug 19 03:23 /etc/alternatives/kdesu -> 
/usr/lib/kde4/libexec/kdesu-distrib/kdesu

que ainda diz kde4.

eu tenteisudo -A ls

e disse

bigbird@sananda:~$ sudo -A ls
sudo: no askpass program specified, try setting SUDO_ASKPASS

Eu andei em alguns círculos olhando ksshaskpasse ssh-askpass, mas ambos dizem que não devem ser chamados diretamente.

Eu não estou fazendo nada com ssh.

Eu preciso disso para scripts bash que fazem quase tudo como um usuário normal e, em seguida, executam um ou dois comandos como root. Esses scripts geralmente são iniciados a partir de ícones da área de trabalho onde não há janela de terminal aberta (e eu não preciso ou quero uma). Eles geralmente usam yad(como zenityou kdialog) para interagir com o usuário.

Não consigo me conectar ao WiFi do meu notebook. Funcionou bem por muito tempo até recentemente. Houve atualizações para linux-firmware.

Não percebi de imediato porque normalmente tenho meu notebook conectado por Ethernet - o que funciona bem.

Parece que algo está errado no final do notebook. Como descarto uma falha de hardware?

Detalhes:

Saída do script do analisador

Finalmente me lembrei de procurar no dmesg e descobri que

Ele estava tentando carregar iwlwifi-7265D-19.ucode ou iwlwifi-7265D-18.ucode, mas eu só tenho 10,12,13,16,17,21,22,27,29

Então eu tentei (como uma medida paliativa)

sudo ln -sf iwlwifi-7265D-17.ucode iwlwifi-7265D-19.ucode

que eliminou o erro:

bigbird@sananda:/lib/firmware$ dmesg -T | grep wifi
[Sun Feb 18 01:48:52 2018] iwlwifi 0000:07:00.0: loaded firmware version 17.352738.0 op_mode iwlmvm
[Sun Feb 18 01:48:53 2018] iwlwifi 0000:07:00.0: Detected Intel(R) Dual Band Wireless AC 7265, REV=0x210
[Sun Feb 18 01:48:53 2018] iwlwifi 0000:07:00.0: L1 Enabled - LTR Enabled
[Sun Feb 18 01:48:53 2018] iwlwifi 0000:07:00.0: L1 Enabled - LTR Enabled
[Sun Feb 18 01:48:53 2018] iwlwifi 0000:07:00.0 wlp7s0: renamed from wlan0
bigbird@sananda:/lib/firmware$

Mas não resolveu o problema.

bigbird@sananda:/lib/firmware$ rfkill unblock wifi
bigbird@sananda:/lib/firmware$ rfkill unblock wlan
bigbird@sananda:/lib/firmware$ rfkill list
0: Toshiba Bluetooth: Bluetooth
        Soft blocked: no
        Hard blocked: no
1: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
2: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: yes
bigbird@sananda:/lib/firmware$

Eu encontrei isso, mas realmente não entendo:

https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/core_release

Há muitos avisos de "fim da vida útil" lá, mas este notebook tem apenas alguns anos.

Hardware:

Toshiba Satellite S55 C5274

Kubuntu 16.04

Technicolor Gateway TC8717 (BATC8717T V4)

Meu smartphone pode acessar o WiFi bem, então está funcionando.

Eu posso acessar meu gateway via cabo Ethernet e parece bom.

Corrida

rfkill unblock wifi

ou wlan, com ou sem sudo afeta apenas o soft block.

A alternância wifi no meu teclado liga e desliga o bloco suave, mas deixa o bloco rígido no lugar.

Não tenho firewall rodando no meu notebook e só tenho um IP totalmente externo bloqueado usando iptables.

sudo lshw

mostra:

        *-pci:1
             description: PCI bridge
             product: Wildcat Point-LP PCI Express Root Port #3
             vendor: Intel Corporation
             physical id: 1c.2
             bus info: pci@0000:00:1c.2
             version: e3
             width: 32 bits
             clock: 33MHz
             capabilities: pci normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:43 memory:b3300000-b33fffff
           *-network DISABLED
                description: Wireless interface
                product: Wireless 7265
                vendor: Intel Corporation
                physical id: 0
                bus info: pci@0000:07:00.0
                logical name: wlp7s0
                version: 61
                serial: dc:53:60:cb:27:17
                width: 64 bits
                clock: 33MHz
                capabilities: bus_master cap_list ethernet physical wireless
                configuration: broadcast=yes driver=iwlwifi driverversion=4.4.0-112-generic firmware=17.352738.0 latency=0 link=no mu$
                resources: irq:53 memory:b3300000-b3301fff

bigbird@sananda:~/bin$ sudo ip -a link

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp8s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
    link/ether 54:ab:3a:0d:4f:a4 brd ff:ff:ff:ff:ff:ff
3: wlp7s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether dc:53:60:cb:27:17 brd ff:ff:ff:ff:ff:ff
bigbird@sananda:~/bin$