Oi, @Capezotte , tudo jóia?
Boa noite!
Cara, desde o dia que você me ajudou no tópico 2 Jogos ao Mesmo Tempo no Linux que estou tentando fazer essa magia negra funcionar. Tenho tentado desde então “evoluir” minha experiência no Linux antes, mas acho que não sou eu kk
Não sei se é por eu usar o Ubuntu, mas o Xephyr simplesmente não consegue reconhecer os drivers do dispositivo que eu anexo a ele. Com a versão que você indica, o Xephyr abre, mas sem o VLC dentro.
Tentei antes no Pop_OS! 21.04 e, sem sucesso, fui pro Ubuntu 20.04 pra ver se tinha algo a ver com estabilidade do sistema, mas dá sempre essa mensagem de erro aqui:
Erro
kuririnssj3@LinuxPC:~$ /media/kuririnssj3/Backup/Jogos/_LinuxSplitScreen/Xephyr -seat seat1 :1 & DISPLAY=:1 vlc
[1] 4492
VLC media player 3.0.9.2 Vetinari (revision 3.0.9.2-0-gd4c1aefe4d)
[00005606f24ea890] main interface error: no suitable interface module
[00005606f23fe5b0] main libvlc error: interface "globalhotkeys,none" initialization failed
[00005606f23fe5b0] main libvlc: Executando o VLC com a interface padrão. Use 'cvlc' para usar o VLC sem interface.
[00005606f24ea890] skins2 interface error: cannot initialize OSFactory
[00005606f2496f10] main playlist: playlist is empty
[00005606f24ea890] [cli] lua interface: Listening on host "*console".
VLC media player 3.0.9.2 Vetinari
Command Line Interface initialized. Type `help' for help.
> Kbd option key (_source) of value (server/udev) not assigned!
Kbd option key (major) of value (13) not assigned!
Kbd option key (minor) of value (90) not assigned!
Kbd option key (config_info) of value (udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:21/0005:1949:0402.0007/input/input31/event26) not assigned!
Kbd option key (GrabDevice) of value (on) not assigned!
Failed to open evdev device /dev/input/event26
couldn't add or enable keyboard "PG-9028 Keyboard" (/dev/input/event26)
unrecognised device identifier: /dev/input/event27
Pointer option key (_source) of value (server/udev) not assigned!
Pointer option key (major) of value (13) not assigned!
Pointer option key (minor) of value (92) not assigned!
Pointer option key (config_info) of value (udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:21/0005:1949:0402.0007/input/input33/event28) not assigned!
Pointer option key (GrabDevice) of value (on) not assigned!
Failed to open evdev device /dev/input/event28
couldn't add or enable pointer "PG-9028 Mouse" (/dev/input/event28)
Pointer option key (_source) of value (server/udev) not assigned!
Pointer option key (major) of value (13) not assigned!
Pointer option key (minor) of value (34) not assigned!
Pointer option key (config_info) of value (udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:21/0005:1949:0402.0007/input/input33/mouse2) not assigned!
Pointer option key (GrabDevice) of value (on) not assigned!
couldn't find driver for pointer device "PG-9028 Mouse" (/dev/input/mouse2)
unrecognised device identifier: /dev/input/event29
unrecognised device identifier: /dev/input/js0
[KdPointerProc] Failed to find pointer for device 7!
Já tentei com sudo e dá a mesma coisa.
Quando tentei com a versão mais atualizada, o Xephyr até chegou abrir com o VLC dentro, mas o cursor de dentro não mexe de jeito nenhum, e a mensagem de erro muda um pouco… Mas a base é a mesma, olha só:
Erro 2
kuririnssj3@LinuxPC:~$ Xephyr -seat seat1 :1 & DISPLAY=:1 vlc
[1] 4539
VLC media player 3.0.9.2 Vetinari (revision 3.0.9.2-0-gd4c1aefe4d)
Kbd option key (_source) of value (server/udev) not assigned!
Kbd option key (major) of value (13) not assigned!
Kbd option key (minor) of value (90) not assigned!
Kbd option key (config_info) of value (udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:21/0005:1949:0402.0007/input/input31/event26) not assigned!
Kbd option key (GrabDevice) of value (on) not assigned!
couldn't find driver for keyboard device "PG-9028 Keyboard" (/dev/input/event26)
unrecognised device identifier: /dev/input/event27
Pointer option key (_source) of value (server/udev) not assigned!
Pointer option key (major) of value (13) not assigned!
Pointer option key (minor) of value (92) not assigned!
Pointer option key (config_info) of value (udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:21/0005:1949:0402.0007/input/input33/event28) not assigned!
Pointer option key (GrabDevice) of value (on) not assigned!
couldn't find driver for pointer device "PG-9028 Mouse" (/dev/input/event28)
Pointer option key (_source) of value (server/udev) not assigned!
Pointer option key (major) of value (13) not assigned!
Pointer option key (minor) of value (34) not assigned!
Pointer option key (config_info) of value (udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:21/0005:1949:0402.0007/input/input33/mouse2) not assigned!
Pointer option key (GrabDevice) of value (on) not assigned!
couldn't find driver for pointer device "PG-9028 Mouse" (/dev/input/mouse2)
unrecognised device identifier: /dev/input/event29
unrecognised device identifier: /dev/input/js0
[0000559af0e215b0] main libvlc: Executando o VLC com a interface padrão. Use 'cvlc' para usar o VLC sem interface.
Kbd option key (_source) of value (server/udev) not assigned!
Kbd option key (major) of value (13) not assigned!
Kbd option key (minor) of value (90) not assigned!
Kbd option key (config_info) of value (udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:21/0005:1949:0402.0007/input/input31/event26) not assigned!
Kbd option key (GrabDevice) of value (on) not assigned!
couldn't find driver for keyboard device "PG-9028 Keyboard" (/dev/input/event26)
unrecognised device identifier: /dev/input/event27
Pointer option key (_source) of value (server/udev) not assigned!
Pointer option key (major) of value (13) not assigned!
Pointer option key (minor) of value (92) not assigned!
Pointer option key (config_info) of value (udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:21/0005:1949:0402.0007/input/input33/event28) not assigned!
Pointer option key (GrabDevice) of value (on) not assigned!
couldn't find driver for pointer device "PG-9028 Mouse" (/dev/input/event28)
Pointer option key (_source) of value (server/udev) not assigned!
Pointer option key (major) of value (13) not assigned!
Pointer option key (minor) of value (34) not assigned!
Pointer option key (config_info) of value (udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:21/0005:1949:0402.0007/input/input33/mouse2) not assigned!
Pointer option key (GrabDevice) of value (on) not assigned!
couldn't find driver for pointer device "PG-9028 Mouse" (/dev/input/mouse2)
unrecognised device identifier: /dev/input/event29
unrecognised device identifier: /dev/input/js0
Kbd option key (_source) of value (server/udev) not assigned!
Kbd option key (major) of value (13) not assigned!
Kbd option key (minor) of value (90) not assigned!
Kbd option key (config_info) of value (udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:21/0005:1949:0402.0007/input/input31/event26) not assigned!
Kbd option key (GrabDevice) of value (on) not assigned!
couldn't find driver for keyboard device "PG-9028 Keyboard" (/dev/input/event26)
unrecognised device identifier: /dev/input/event27
Pointer option key (_source) of value (server/udev) not assigned!
Pointer option key (major) of value (13) not assigned!
Pointer option key (minor) of value (92) not assigned!
Pointer option key (config_info) of value (udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:21/0005:1949:0402.0007/input/input33/event28) not assigned!
Pointer option key (GrabDevice) of value (on) not assigned!
couldn't find driver for pointer device "PG-9028 Mouse" (/dev/input/event28)
Pointer option key (_source) of value (server/udev) not assigned!
Pointer option key (major) of value (13) not assigned!
Pointer option key (minor) of value (34) not assigned!
Pointer option key (config_info) of value (udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:21/0005:1949:0402.0007/input/input33/mouse2) not assigned!
Pointer option key (GrabDevice) of value (on) not assigned!
couldn't find driver for pointer device "PG-9028 Mouse" (/dev/input/mouse2)
unrecognised device identifier: /dev/input/event29
unrecognised device identifier: /dev/input/js0
[0000559af0eb9f10] main playlist: playlist is empty
Já tentei com outros mouses, teclados, controle bluetooth… O problema é sempre o mesmo. 
A única forma de eu conseguir clicar dentro dele é com o comando sem os -seat seat1, mas aí não faria sentido mais kk
Dá pra ver neste fórum aqui que ninguém lá fora tá sabendo contornar esse BO…
Você tem alguma dica?
Desculpa mesmo reviver seu tópico 