Siguiendo sugerencia de uNbAs pongo aquí la salida del dmesg por si alguien puede darme una pista de lo que está ocurriendo y así puede servir también de ayuda si otros están en situación parecida. Es largo, ero espero sirva:
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wifislax ~ # dmesg
M v1.316
I2O ProcFS OSM v1.316
Fusion MPT base driver 3.04.04
Copyright (c) 1999-2007 LSI Logic Corporation
Fusion MPT SPI Host driver 3.04.04
Fusion MPT FC Host driver 3.04.04
Fusion MPT SAS Host driver 3.04.04
usbmon: debugfs is not available
usbcore: registered new interface driver hiddev
usbcore: registered new interface driver usbhid
drivers/usb/input/hid-core.c: v2.6:USB HID core driver
usbcore: registered new interface driver gtco
GTCO usb driver version: 2.00.0006<6>usbcore: registered new interface driver berr
y_charge
usbcore: registered new interface driver iowarrior
PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX port at 0x60,0x64 irq 12
mice: PS/2 mouse device common for all mice
md: linear personality registered for level -1
md: raid0 personality registered for level 0
md: raid1 personality registered for level 1
md: raid10 personality registered for level 10
raid6: int32x1 719 MB/s
raid6: int32x2 914 MB/s
raid6: int32x4 617 MB/s
raid6: int32x8 577 MB/s
raid6: mmxx1 2207 MB/s
raid6: mmxx2 2552 MB/s
raid6: sse1x1 1527 MB/s
raid6: sse1x2 2666 MB/s
raid6: sse2x1 2930 MB/s
raid6: sse2x2 3203 MB/s
raid6: using algorithm sse2x2 (3203 MB/s)
md: raid6 personality registered for level 6
md: raid5 personality registered for level 5
md: raid4 personality registered for level 4
raid5: automatically using best checksumming function: pIII_sse
pIII_sse : 5326.000 MB/sec
raid5: using function: pIII_sse (5326.000 MB/sec)
md: multipath personality registered for level -4
md: faulty personality registered for level -5
device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: dm-devel@redhat.com
device-mapper: multipath: version 1.0.5 loaded
device-mapper: multipath round-robin: version 1.0.0 loaded
device-mapper: multipath emc: version 0.0.3 loaded
TCP cubic registered
Initializing XFRM netlink socket
NET: Registered protocol family 1
NET: Registered protocol family 17
Using IPI Shortcut mode
input: AT Translated Set 2 keyboard as /class/input/input4
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
RAMDISK: Compressed image found at block 0
EXT2-fs warning: checktime reached, running e2fsck is recommended
VFS: Mounted root (ext2 filesystem).
Freeing unused kernel memory: 312k freed
squashfs: version 3.2-r2 (2007/01/15) Phillip Lougher
squashfs: LZMA suppport for slax.org by jro
aufs 20070625
fuse init (API version 7.

ACPI: PCI Interrupt Link [LNKH] enabled at IRQ 11
ACPI: PCI Interrupt 0000:00:1d.7[D] -> Link [LNKH] -> GSI 11 (level, low) -> IRQ 1
1
PCI: Setting latency timer of device 0000:00:1d.7 to 64
ehci_hcd 0000:00:1d.7: EHCI Host Controller
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:1d.7: debug port 1
PCI: cache line size of 32 is not supported by device 0000:00:1d.7
ehci_hcd 0000:00:1d.7: irq 11, io mem 0xc0000000
ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 6 ports detected
USB Universal Host Controller Interface driver v3.0
ACPI: PCI Interrupt 0000:00:1d.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 1
1
PCI: Setting latency timer of device 0000:00:1d.0 to 64
uhci_hcd 0000:00:1d.0: UHCI Host Controller
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 2
uhci_hcd 0000:00:1d.0: irq 11, io base 0x00001800
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 11
ACPI: PCI Interrupt 0000:00:1d.1
-> Link [LNKD] -> GSI 11 (level, low) -> IRQ 1
1
PCI: Setting latency timer of device 0000:00:1d.1 to 64
uhci_hcd 0000:00:1d.1: UHCI Host Controller
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 3
uhci_hcd 0000:00:1d.1: irq 11, io base 0x00001820
usb usb3: configuration #1 chosen from 1 choice
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.2[C] -> Link [LNKC] -> GSI 11 (level, low) -> IRQ 1
1
PCI: Setting latency timer of device 0000:00:1d.2 to 64
uhci_hcd 0000:00:1d.2: UHCI Host Controller
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 4
uhci_hcd 0000:00:1d.2: irq 11, io base 0x00001840
usb usb4: configuration #1 chosen from 1 choice
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 2 ports detected
usb 1-3: new high speed USB device using ehci_hcd and address 2
Initializing USB Mass Storage driver...
usb 1-3: configuration #1 chosen from 1 choice
usb 1-4: new high speed USB device using ehci_hcd and address 3
usb 1-4: configuration #1 chosen from 1 choice
usb 4-2: new full speed USB device using uhci_hcd and address 2
usb 4-2: configuration #1 chosen from 1 choice
scsi2 : SCSI emulation for USB Mass Storage devices
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usb-storage: device found at 2
usb-storage: waiting for device to settle before scanning
Yenta: CardBus bridge found at 0000:02:00.0 [1014:0552]
Yenta: Using INTVAL to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
Yenta TI: socket 0000:02:00.0, mfunc 0x01d21b22, devctl 0x64
Yenta: ISA IRQ mask 0x04b8, PCI irq 11
Socket status: 30000086
pcmcia: parent PCI bridge I/O window: 0x4000 - 0x8fff
cs: IO port probe 0x4000-0x8fff: clean.
pcmcia: parent PCI bridge Memory window: 0xc0200000 - 0xcfffffff
pcmcia: parent PCI bridge Memory window: 0xe8000000 - 0xefffffff
Yenta: CardBus bridge found at 0000:02:00.1 [1014:0552]
Yenta: Using INTVAL to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
Yenta TI: socket 0000:02:00.1, mfunc 0x01d21b22, devctl 0x64
Yenta: ISA IRQ mask 0x04b8, PCI irq 11
Socket status: 30000086
pcmcia: parent PCI bridge I/O window: 0x4000 - 0x8fff
cs: IO port probe 0x4000-0x8fff: clean.
pcmcia: parent PCI bridge Memory window: 0xc0200000 - 0xcfffffff
pcmcia: parent PCI bridge Memory window: 0xe8000000 - 0xefffffff
ISO 9660 Extensions: Microsoft Joliet Level 3
ISO 9660 Extensions: RRIP_1991A
ISO 9660 Extensions: Microsoft Joliet Level 3
ISO 9660 Extensions: RRIP_1991A
scsi 2:0:0:0: Direct-Access Kingston DataTraveler 2.0 1.00 PQ: 0 ANSI: 2
SCSI device sda: 15646656 512-byte hdwr sectors (8011 MB)
sda: Write Protect is off
sda: Mode Sense: 65 44 09 30
sda: assuming drive cache: write through
SCSI device sda: 15646656 512-byte hdwr sectors (8011 MB)
sda: Write Protect is off
sda: Mode Sense: 65 44 09 30
sda: assuming drive cache: write through
sda: sda1
sd 2:0:0:0: Attached scsi removable disk sda
usb-storage: device scan complete
usbcore: deregistering interface driver usb-storage
uhci_hcd 0000:00:1d.2: remove, state 1
usb usb4: USB disconnect, address 1
usb 4-2: USB disconnect, address 2
uhci_hcd 0000:00:1d.2: USB bus 4 deregistered
ACPI: PCI interrupt for device 0000:00:1d.2 disabled
uhci_hcd 0000:00:1d.1: remove, state 1
usb usb3: USB disconnect, address 1
uhci_hcd 0000:00:1d.1: USB bus 3 deregistered
ACPI: PCI interrupt for device 0000:00:1d.1 disabled
uhci_hcd 0000:00:1d.0: remove, state 1
usb usb2: USB disconnect, address 1
uhci_hcd 0000:00:1d.0: USB bus 2 deregistered
ACPI: PCI interrupt for device 0000:00:1d.0 disabled
ehci_hcd 0000:00:1d.7: remove, state 1
usb usb1: USB disconnect, address 1
usb 1-3: USB disconnect, address 2
usb 1-4: USB disconnect, address 3
ehci_hcd 0000:00:1d.7: USB bus 1 deregistered
ACPI: PCI interrupt for device 0000:00:1d.7 disabled
fuse exit
input: PC Speaker as /class/input/input5
input: PS/2 Synaptics TouchPad as /class/input/input6
parport: PnPBIOS parport detected.
parport0: PC-style at 0x3bc, irq 7 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
lp0: console ready
Linux agpgart interface v0.102 (c) Dave Jones
fuse init (API version 7.
Capability LSM initialized
Databook TCIC-2 PCMCIA probe: not found.
Yenta: CardBus bridge found at 0000:02:00.0 [1014:0552]
Yenta: Using INTVAL to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
Yenta TI: socket 0000:02:00.0, mfunc 0x01d21b22, devctl 0x64
Yenta: ISA IRQ mask 0x0438, PCI irq 11
Socket status: 30000086
pcmcia: parent PCI bridge I/O window: 0x4000 - 0x8fff
cs: IO port probe 0x4000-0x8fff: clean.
pcmcia: parent PCI bridge Memory window: 0xc0200000 - 0xcfffffff
pcmcia: parent PCI bridge Memory window: 0xe8000000 - 0xefffffff
Yenta: CardBus bridge found at 0000:02:00.1 [1014:0552]
Yenta: Using INTVAL to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
Yenta TI: socket 0000:02:00.1, mfunc 0x01d21b22, devctl 0x64
Yenta: ISA IRQ mask 0x0438, PCI irq 11
Socket status: 30000086
pcmcia: parent PCI bridge I/O window: 0x4000 - 0x8fff
cs: IO port probe 0x4000-0x8fff: clean.
pcmcia: parent PCI bridge Memory window: 0xc0200000 - 0xcfffffff
pcmcia: parent PCI bridge Memory window: 0xe8000000 - 0xefffffff
pcmcia: Detected deprecated PCMCIA ioctl usage from process: cardmgr.
pcmcia: This interface will soon be removed from the kernel; please expect breakag
e unless you upgrade to new tools.
pcmcia: see http://www.kernel.org/pub/linux/utils/kernel/pcmcia/pcmcia.html for de
tails.
cs: IO port probe 0xc00-0xcff: clean.
cs: IO port probe 0xc00-0xcff: clean.
cs: IO port probe 0x820-0x8ff: clean.
cs: IO port probe 0x820-0x8ff: clean.
cs: IO port probe 0x800-0x80f: clean.
cs: IO port probe 0x800-0x80f: clean.
cs: IO port probe 0x3e0-0x4ff: excluding 0x4d0-0x4d7
cs: IO port probe 0x3e0-0x4ff: excluding 0x4d0-0x4d7
cs: IO port probe 0x100-0x3af: clean.
cs: IO port probe 0x100-0x3af: clean.
cs: IO port probe 0xa00-0xaff: clean.
cs: IO port probe 0xa00-0xaff: clean.
ieee80211_crypt: registered algorithm 'NULL'
ieee80211: 802.11 data/management/control stack, git-1.1.13
ieee80211: Copyright (C) 2004-2005 Intel Corporation <jketreno@linux.intel.com>
ipw2200: Intel(R) PRO/Wireless 2200/2915 Network Driver, 1.2.0kmprq
ipw2200: Copyright(c) 2003-2006 Intel Corporation
ACPI: PCI Interrupt 0000:02:02.0[A] -> Link [LNKC] -> GSI 11 (level, low) -> IRQ 1
1
ipw2200: Detected Intel PRO/Wireless 2200BG Network Connection
ipw2200: ipw2200-bss.fw request_firmware failed: Reason -2
ipw2200: Unable to load firmware: -2
ipw2200: failed to register network device
ACPI: PCI interrupt for device 0000:02:02.0 disabled
ipw2200: probe of 0000:02:02.0 failed with error -5
Intel(R) PRO/1000 Network Driver - version 7.3.20-k2-NAPI
Copyright (c) 1999-2006 Intel Corporation.
ACPI: PCI Interrupt 0000:02:01.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 1
1
e1000: 0000:02:01.0: e1000_probe: (PCI:33MHz:32-bit) 00:11:25:b0:f3:4f
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
ACPI: PCI Interrupt 0000:00:1f.5 -> Link [LNKB] -> GSI 11 (level, low) -> IRQ 1
1
PCI: Setting latency timer of device 0000:00:1f.5 to 64
intel8x0_measure_ac97_clock: measured 55475 usecs
intel8x0: clocking to 48000
ACPI: PCI Interrupt 0000:00:1f.3 -> Link [LNKB] -> GSI 11 (level, low) -> IRQ 1
1
i8xx TCO timer: initialized (0x1060). heartbeat=30 sec (nowayout=0)
iTCO_vendor_support: vendor-support=0
iTCO_wdt: Intel TCO WatchDog Timer Driver v1.01 (21-Jan-2007)
iTCO_wdt: I/O address 0x1060 already in use
iTCO_wdt: No card detected
shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
ACPI: PCI Interrupt 0000:00:1d.7[D] -> Link [LNKH] -> GSI 11 (level, low) -> IRQ 1
1
PCI: Setting latency timer of device 0000:00:1d.7 to 64
ehci_hcd 0000:00:1d.7: EHCI Host Controller
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:1d.7: debug port 1
PCI: cache line size of 32 is not supported by device 0000:00:1d.7
ehci_hcd 0000:00:1d.7: irq 11, io mem 0xc0000000
ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 6 ports detected
USB Universal Host Controller Interface driver v3.0
ACPI: PCI Interrupt 0000:00:1d.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 1
1
PCI: Setting latency timer of device 0000:00:1d.0 to 64
uhci_hcd 0000:00:1d.0: UHCI Host Controller
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 2
uhci_hcd 0000:00:1d.0: irq 11, io base 0x00001800
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.1 -> Link [LNKD] -> GSI 11 (level, low) -> IRQ 1
1
PCI: Setting latency timer of device 0000:00:1d.1 to 64
uhci_hcd 0000:00:1d.1: UHCI Host Controller
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 3
uhci_hcd 0000:00:1d.1: irq 11, io base 0x00001820
usb usb3: configuration #1 chosen from 1 choice
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.2[C] -> Link [LNKC] -> GSI 11 (level, low) -> IRQ 1
1
PCI: Setting latency timer of device 0000:00:1d.2 to 64
uhci_hcd 0000:00:1d.2: UHCI Host Controller
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 4
uhci_hcd 0000:00:1d.2: irq 11, io base 0x00001840
usb usb4: configuration #1 chosen from 1 choice
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 2 ports detected
usb 1-3: new high speed USB device using ehci_hcd and address 2
agpgart: Detected an Intel 855PM Chipset.
agpgart: AGP aperture is 256M @ 0xd0000000
usb 1-3: configuration #1 chosen from 1 choice
usb 1-4: new high speed USB device using ehci_hcd and address 3
usb 1-4: configuration #1 chosen from 1 choice
usb 4-2: new full speed USB device using uhci_hcd and address 2
usb 4-2: configuration #1 chosen from 1 choice
rtc_cmos 00:06: rtc core: registered rtc_cmos as rtc0
rtc_cmos: probe of 00:06 failed with error -16
NET: Registered protocol family 23
pnp: Device 00:0c activated.
nsc-ircc, chip->init
nsc-ircc, Found chip at base=0x02e
nsc-ircc, driver loaded (Dag Brattli)
IrDA: Registered device irda0
nsc-ircc, Found dongle: HP HSDL-1100/HSDL-2100
ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver
Initializing USB Mass Storage driver...
scsi3 : SCSI emulation for USB Mass Storage devices
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usb-storage: device found at 2
usb-storage: waiting for device to settle before scanning
scsi 3:0:0:0: Direct-Access Kingston DataTraveler 2.0 1.00 PQ: 0 ANSI: 2
SCSI device sda: 15646656 512-byte hdwr sectors (8011 MB)
sda: Write Protect is off
sda: Mode Sense: 65 44 09 30
sda: assuming drive cache: write through
SCSI device sda: 15646656 512-byte hdwr sectors (8011 MB)
sda: Write Protect is off
sda: Mode Sense: 65 44 09 30
sda: assuming drive cache: write through
sda: sda1
sd 3:0:0:0: Attached scsi removable disk sda
usb-storage: device scan complete
NET: Registered protocol family 10
lo: Disabled Privacy Extensions
NTFS volume version 3.1.
NTFS volume version 3.1.
NTFS volume version 3.1.
NTFS volume version 3.1.
NTFS volume version 3.1.
Bluetooth: Core ver 2.11
NET: Registered protocol family 31
Bluetooth: HCI device and connection manager initialized
Bluetooth: HCI socket layer initialized
Bluetooth: L2CAP ver 2.8
Bluetooth: L2CAP socket layer initialized
Bluetooth: HIDP (Human Interface Emulation) ver 1.2
Bluetooth: RFCOMM socket layer initialized
Bluetooth: RFCOMM TTY layer initialized
Bluetooth: RFCOMM ver 1.8
mtrr: no more MTRRs available
mtrr: no more MTRRs available
mtrr: no more MTRRs available
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Gracias