нет cat /proc/bus/input/devices

Мои идеи не решение твоей проблемы. Но я собрал бы побольше данных.

Сравнить вывод команды lsmod запущенной на archlinux и на mythbuntu.

А реакцию udev можно посмотреть командой «udevadm monitor» и подключить картридер.

Вывод dmesg.

Ты кардридер в VirtualBox подключаешь ?

Что за кардридер ?

вот такой картридер http://www.logicfox.ua/catalog?id=216
он сам автоматически с virtualbox подключается

вот все данные с mythbuntu

mythbuntu@mythbuntu-VirtualBox:~$ lsmod
Module Size Used by
vesafb 13449 1
snd_intel8x0 33213 0
snd_ac97_codec 105614 1 snd_intel8x0
ac97_bus 12642 1 snd_ac97_codec
snd_pcm 80244 2 snd_intel8x0,snd_ac97_codec
snd_seq_midi 13132 0
snd_rawmidi 25269 1 snd_seq_midi
snd_seq_midi_event 14475 1 snd_seq_midi
snd_seq 51291 2 snd_seq_midi,snd_seq_midi_event
snd_timer 28659 2 snd_pcm,snd_seq
ppdev 12849 0
nfsd 252397 11
exportfs 12870 1 nfsd
snd_seq_device 14110 3 snd_seq_midi,snd_rawmidi,snd_seq
nfs 282952 0
lockd 74292 2 nfsd,nfs
fscache 50364 1 nfs
nfs_acl 12771 2 nfsd,nfs
auth_rpcgss 39173 2 nfsd,nfs
sunrpc 199096 13 nfsd,nfs,lockd,nfs_acl,auth_rpcgss
snd 55295 7 snd_intel8x0,snd_ac97_codec,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
joydev 17322 0
psmouse 73312 0
serio_raw 12990 0
parport_pc 32111 0
i2c_piix4 13095 0
soundcore 12600 1 snd
snd_page_alloc 14073 2 snd_intel8x0,snd_pcm
lp 13349 0
parport 36746 3 ppdev,parport_pc,lp
usbhid 41704 0
ahci 21591 2
usb_storage 43946 0
hid 77084 1 usbhid
e1000 101089 0
libahci 25548 1 ahci
uas 17676 0
mythbuntu@mythbuntu-VirtualBox:~$



mythbuntu@mythbuntu-VirtualBox:~$ udevadm monitor
monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent



mythbuntu@mythbuntu-VirtualBox:~$ dmesg | grep usb
[ 0.149436] usbcore: registered new interface driver usbfs
[ 0.149447] usbcore: registered new interface driver hub
[ 0.149469] usbcore: registered new device driver usb
[ 0.652676] usb 1-1: new high speed USB device using ehci_hcd and address 2
[ 1.136192] usb 2-1: new full speed USB device using ohci_hcd and address 2
[ 1.165909] usbcore: registered new interface driver uas
[ 1.202455] scsi2 : usb-storage 1-1:1.0
[ 1.202600] usbcore: registered new interface driver usb-storage
[ 1.626572] generic-usb: probe of 0003:058F:6364.0001 failed with error -22
[ 1.626912] usbcore: registered new interface driver usbhid
[ 1.626915] usbhid: USB HID core driver
[ 1.807719] input: VirtualBox USB Tablet as /devices/pci0000:00/0000:00:06.0/usb2/2-1/2-1:1.0/input/input3
[ 1.807853] generic-usb 0003:80EE:0021.0002: input,hidraw0: USB HID v1.10 Mouse [VirtualBox USB Tablet] on usb-0000:00:06.0-1/input0
mythbuntu@mythbuntu-VirtualBox:~$


а вот archlinux
lsmod

Module Size Used by
ipv6 290407 16
fuse 67290 3
snd_hda_codec_analog 78696 1
nvidia 11490300 40
usb_storage 44263 0
uas 8088 0
ppdev 5774 0
parport_pc 31610 0
parport 31375 2 ppdev,parport_pc
edac_core 37328 0
serio_raw 4294 0
via_rhine 22279 0
mii 3995 1 via_rhine
psmouse 55224 0
i2c_nforce2 5096 0
edac_mce_amd 13119 0
forcedeth 53019 0
processor 24256 0
pcspkr 1819 0
sg 25557 0
snd_hda_intel 22122 4
snd_hda_codec 77927 2 snd_hda_codec_analog,snd_hda_intel
snd_hwdep 6325 1 snd_hda_codec
snd_pcm 73856 3 snd_hda_intel,snd_hda_codec
snd_timer 19416 2 snd_pcm
snd 57786 12 snd_hda_codec_analog,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
soundcore 6146 1 snd
snd_page_alloc 7121 2 snd_hda_intel,snd_pcm
k10temp 2883 0
button 4470 0
thermal 7863 0
fan 2426 0
evdev 9530 7
i2c_core 20133 2 nvidia,i2c_nforce2
asus_atk0110 10131 0
nv_tco 4776 0
vboxdrv 1786526 0
ext4 369556 2
mbcache 5817 1 ext4
jbd2 71074 1 ext4
crc16 1297 1 ext4
usbhid 35256 0
hid 81635 1 usbhid
sr_mod 14951 0
cdrom 36329 1 sr_mod
ohci_hcd 21714 0
sd_mod 28307 4
ehci_hcd 39511 0
pata_acpi 3376 0
sata_nv 21812 3
usbcore 142544 6 usb_storage,uas,usbhid,ohci_hcd,ehci_hcd
pata_amd 11395 0
libata 173297 3 pata_acpi,sata_nv,pata_amd
scsi_mod 131482 6 usb_storage,uas,sg,sr_mod,sd_mod,libata


udev

monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent


dmesg

[ 0.849477] usbcore: registered new interface driver usbfs
[ 0.849505] usbcore: registered new interface driver hub
[ 0.851768] usbcore: registered new device driver usb
[ 1.190232] usb 1-4: new high speed USB device number 2 using ehci_hcd
[ 1.423565] usb 1-10: new high speed USB device number 3 using ehci_hcd
[ 2.299494] generic-usb: probe of 0003:058F:6364.0001 failed with error -22
[ 2.299516] usbcore: registered new interface driver usbhid
[ 2.299519] usbhid: USB HID core driver
[ 4.888409] usbcore: registered new interface driver uas
[ 4.890865] scsi8 : usb-storage 1-4:1.0
[ 4.891003] scsi9 : usb-storage 1-10:1.0
[ 4.891090] usbcore: registered new interface driver usb-storage
[ 5204.049513] usb 1-10: reset high speed USB device number 3 using ehci_hcd
[ 6010.756192] usb 1-10: reset high speed USB device number 3 using ehci_hcd
[ 6010.882802] generic-usb: probe of 0003:058F:6364.0002 failed with error -22
[ 6010.882937] scsi10 : usb-storage 1-10:1.0