Может модуль ядра какой надо доустановить? Вот вывод lsmod.
[timur@laptop ~]$ lsmod
Module Size Used by
ppp_deflate 9984 0
zlib_deflate 23832 1 ppp_deflate
bsd_comp 9984 0
ppp_async 16000 1
ppp_generic 32540 7 ppp_deflate,bsd_comp,ppp_async
slhc 10368 1 ppp_generic
lp 16516 0
option 17024 2
usbserial 38632 5 option
isofs 40100 0
nls_base 11652 1 isofs
zlib_inflate 20992 2 ppp_deflate,isofs
sg 40500 0
sr_mod 22468 0
usb_storage 76736 0
libusual 23336 1 usb_storage
binfmt_misc 16008 1
cpufreq_powersave 5760 0
cpufreq_conservative 11784 0
cpufreq_ondemand 12684 0
freq_table 8832 1 cpufreq_ondemand
cpufreq_userspace 8452 0
af_packet 26624 0
dm_mod 66408 0
usbhid 52096 0
hid 67072 1 usbhid
ff_memless 9864 1 usbhid
joydev 16064 0
parport_pc 44996 1
irda 128824 0
parport 40812 2 lp,parport_pc
crc_ccitt 6144 2 ppp_async,irda
floppy 62308 0
rtc 18984 0
serio_raw 11012 0
pcspkr 7168 0
psmouse 51476 0
evdev 16256 6
yenta_socket 30476 1
sis900 27392 0
rsrc_nonstatic 17536 1 yenta_socket
ehci_hcd 40460 0
mii 9600 1 sis900
ohci_hcd 30852 0
usbcore 150896 8 option,usbserial,usb_storage,libusual
,usbhid,ehci_hcd,ohci_hcd
ssb 43908 1 ohci_hcd
pcmcia 43948 1 ssb
pcmcia_core 43924 4 yenta_socket,rsrc_nonstatic,ssb,pcmci
a
firmware_class 13312 1 pcmcia
battery 17156 0
ac 9988 0
thermal 23068 0
button 12176 0
processor 44008 2 thermal
ide_cd_mod 40480 0
cdrom 39840 2 sr_mod,ide_cd_mod
i2c_sis96x 9220 0
ohci1394 36912 0
i2c_core 28820 1 i2c_sis96x
sis_agp 13696 1
ieee1394 95416 1 ohci1394
agpgart 38344 1 sis_agp
ext3 140040 3
jbd 51220 1 ext3
mbcache 12676 1 ext3
ata_generic 13444 0
pata_sis 18180 0
pata_acpi 11520 0
libata 165264 3 ata_generic,pata_sis,pata_acpi
dock 14352 1 libata
sd_mod 33816 0
scsi_mod 154924 5 sg,sr_mod,usb_storage,libata,sd_mod
ide_generic 5248 0 [permanent]
ide_pci_generic 8196 0 [permanent]
ide_disk 19584 5
sis5513 11780 0 [permanent]
ide_core 120608 5 ide_cd_mod,ide_generic,ide_pci_generi c,ide_disk,sis5513
[timur@laptop ~]$