Reinstale o kernel mais atual do Ubuntu 10.04.
No terminal digite os seguintes comandos e poste aqui o resultado completo de cada um deles:
lspci
e
lsusb
Com kernel 2.6.35 (mais atual do ubuntu 10.04 q achei):
lspci
00:00.0 Host bridge: Intel Corporation Device 0104 (rev 09)
00:01.0 PCI bridge: Intel Corporation Sandy Bridge PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Device 0116 (rev 09)
00:16.0 Communication controller: Intel Corporation Cougar Point HECI Controller #1 (rev 04)
00:1a.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation Cougar Point High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 1 (rev b5)
00:1c.1 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 2 (rev b5)
00:1c.3 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 4 (rev b5)
00:1c.4 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 5 (rev b5)
00:1c.7 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 8 (rev b5)
00:1d.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation Device 1c4b (rev 05)
00:1f.2 SATA controller: Intel Corporation Cougar Point 6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation Cougar Point SMBus Controller (rev 05)
01:00.0 VGA compatible controller: ATI Technologies Inc Device 6741
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
09:00.0 Network controller: Intel Corporation Device 008a (rev 34)
0b:00.0 USB Controller: NEC Corporation Device 0194 (rev 04)
lsusb
Bus 003 Device 002: ID 15d9:0a4c Dexon
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 004: ID 0bda:0138 Realtek Semiconductor Corp.
Bus 002 Device 003: ID 138a:0011 DigitalPersona, Inc
Bus 002 Device 002: ID 8087:0024
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 05ca:181f Ricoh Co., Ltd
Bus 001 Device 003: ID 8086:0189 Intel Corp.
Bus 001 Device 002: ID 8087:0024
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Com kernel 3.4:
lspci
00:00.0 Host bridge: Intel Corporation Device 0104 (rev 09)
00:01.0 PCI bridge: Intel Corporation Sandy Bridge PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Device 0116 (rev 09)
00:16.0 Communication controller: Intel Corporation Cougar Point HECI Controller #1 (rev 04)
00:1a.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation Cougar Point High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 1 (rev b5)
00:1c.1 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 2 (rev b5)
00:1c.3 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 4 (rev b5)
00:1c.4 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 5 (rev b5)
00:1c.7 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 8 (rev b5)
00:1d.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation Device 1c4b (rev 05)
00:1f.2 SATA controller: Intel Corporation Cougar Point 6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation Cougar Point SMBus Controller (rev 05)
01:00.0 VGA compatible controller: ATI Technologies Inc Device 6741
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
09:00.0 Network controller: Intel Corporation Device 008a (rev 34)
0b:00.0 USB Controller: NEC Corporation Device 0194 (rev 04)
lsusb
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 15d9:0a4c Dexon
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 004: ID 0bda:0138 Realtek Semiconductor Corp.
Bus 002 Device 003: ID 138a:0011 DigitalPersona, Inc
Bus 002 Device 002: ID 8087:0024
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 05ca:181f Ricoh Co., Ltd
Bus 001 Device 003: ID 8086:0189 Intel Corp.
Bus 001 Device 002: ID 8087:0024
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub