This laptop works perfectly with Trisquel 5.5. Some Fn keys (F2 and F4-F9) are non-functional, but the functions they perform are nonstandard and unnecessary (all Fn keys which are standard, such as the num lock, work normally).
lspci -vmmnn
Slot: 00:00.0
Class: Host bridge [0600]
Vendor: Intel Corporation [8086]
Device: Mobile 4 Series Chipset Memory Controller Hub [2a40]
SVendor: Toshiba America Info Systems [1179]
SDevice: Device [ff66]
Rev: 07
Slot: 00:02.0
Class: VGA compatible controller [0300]
Vendor: Intel Corporation [8086]
Device: Mobile 4 Series Chipset Integrated Graphics Controller [2a42]
SVendor: Toshiba America Info Systems [1179]
SDevice: Device [ff67]
Rev: 07
Slot: 00:02.1
Class: Display controller [0380]
Vendor: Intel Corporation [8086]
Device: Mobile 4 Series Chipset Integrated Graphics Controller [2a43]
SVendor: Toshiba America Info Systems [1179]
SDevice: Device [ff67]
Rev: 07
Slot: 00:1a.0
Class: USB controller [0c03]
Vendor: Intel Corporation [8086]
Device: 82801I (ICH9 Family) USB UHCI Controller #4 [2937]
SVendor: Toshiba America Info Systems [1179]
SDevice: Device [ff66]
Rev: 03
Slot: 00:1a.1
Class: USB controller [0c03]
Vendor: Intel Corporation [8086]
Device: 82801I (ICH9 Family) USB UHCI Controller #5 [2938]
SVendor: Toshiba America Info Systems [1179]
SDevice: Device [ff66]
Rev: 03
Slot: 00:1a.7
Class: USB controller [0c03]
Vendor: Intel Corporation [8086]
Device: 82801I (ICH9 Family) USB2 EHCI Controller #2 [293c]
SVendor: Toshiba America Info Systems [1179]
SDevice: Device [ff66]
Rev: 03
ProgIf: 20
Slot: 00:1b.0
Class: Audio device [0403]
Vendor: Intel Corporation [8086]
Device: 82801I (ICH9 Family) HD Audio Controller [293e]
SVendor: Toshiba America Info Systems [1179]
SDevice: Device [ff66]
Rev: 03
Slot: 00:1c.0
Class: PCI bridge [0604]
Vendor: Intel Corporation [8086]
Device: 82801I (ICH9 Family) PCI Express Port 1 [2940]
Rev: 03
Slot: 00:1c.4
Class: PCI bridge [0604]
Vendor: Intel Corporation [8086]
Device: 82801I (ICH9 Family) PCI Express Port 5 [2948]
Rev: 03
Slot: 00:1d.0
Class: USB controller [0c03]
Vendor: Intel Corporation [8086]
Device: 82801I (ICH9 Family) USB UHCI Controller #1 [2934]
SVendor: Toshiba America Info Systems [1179]
SDevice: Device [ff66]
Rev: 03
Slot: 00:1d.1
Class: USB controller [0c03]
Vendor: Intel Corporation [8086]
Device: 82801I (ICH9 Family) USB UHCI Controller #2 [2935]
SVendor: Toshiba America Info Systems [1179]
SDevice: Device [ff66]
Rev: 03
Slot: 00:1d.2
Class: USB controller [0c03]
Vendor: Intel Corporation [8086]
Device: 82801I (ICH9 Family) USB UHCI Controller #3 [2936]
SVendor: Toshiba America Info Systems [1179]
SDevice: Device [ff66]
Rev: 03
Slot: 00:1d.3
Class: USB controller [0c03]
Vendor: Intel Corporation [8086]
Device: 82801I (ICH9 Family) USB UHCI Controller #6 [2939]
SVendor: Toshiba America Info Systems [1179]
SDevice: Device [ff66]
Rev: 03
Slot: 00:1d.7
Class: USB controller [0c03]
Vendor: Intel Corporation [8086]
Device: 82801I (ICH9 Family) USB2 EHCI Controller #1 [293a]
SVendor: Toshiba America Info Systems [1179]
SDevice: Device [ff66]
Rev: 03
ProgIf: 20
Slot: 00:1e.0
Class: PCI bridge [0604]
Vendor: Intel Corporation [8086]
Device: 82801 Mobile PCI Bridge [2448]
Rev: 93
ProgIf: 01
Slot: 00:1f.0
Class: ISA bridge [0601]
Vendor: Intel Corporation [8086]
Device: ICH9M LPC Interface Controller [2919]
SVendor: Toshiba America Info Systems [1179]
SDevice: Device [ff66]
Rev: 03
Slot: 00:1f.2
Class: SATA controller [0106]
Vendor: Intel Corporation [8086]
Device: 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode] [2929]
SVendor: Toshiba America Info Systems [1179]
SDevice: Device [ff66]
Rev: 03
ProgIf: 01
Slot: 00:1f.3
Class: SMBus [0c05]
Vendor: Intel Corporation [8086]
Device: 82801I (ICH9 Family) SMBus Controller [2930]
SVendor: Toshiba America Info Systems [1179]
SDevice: Device [ff66]
Rev: 03
Slot: 02:00.0
Class: Ethernet controller [0200]
Vendor: Realtek Semiconductor Co., Ltd. [10ec]
Device: RTL8101E/RTL8102E PCI Express Fast Ethernet controller [8136]
SVendor: Toshiba America Info Systems [1179]
SDevice: Device [ff66]
Rev: 02
lspci -nnk
00:00.0 Host bridge [0600]: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub [8086:2a40] (rev 07)
Subsystem: Toshiba America Info Systems Device [1179:ff66]
Kernel driver in use: agpgart-intel
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
Subsystem: Toshiba America Info Systems Device [1179:ff67]
Kernel driver in use: i915
Kernel modules: i915
00:02.1 Display controller [0380]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a43] (rev 07)
Subsystem: Toshiba America Info Systems Device [1179:ff67]
00:1a.0 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 [8086:2937] (rev 03)
Subsystem: Toshiba America Info Systems Device [1179:ff66]
Kernel driver in use: uhci_hcd
00:1a.1 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 [8086:2938] (rev 03)
Subsystem: Toshiba America Info Systems Device [1179:ff66]
Kernel driver in use: uhci_hcd
00:1a.7 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 [8086:293c] (rev 03)
Subsystem: Toshiba America Info Systems Device [1179:ff66]
Kernel driver in use: ehci_hcd
00:1b.0 Audio device [0403]: Intel Corporation 82801I (ICH9 Family) HD Audio Controller [8086:293e] (rev 03)
Subsystem: Toshiba America Info Systems Device [1179:ff66]
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
00:1c.0 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 [8086:2940] (rev 03)
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.4 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 [8086:2948] (rev 03)
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1d.0 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 [8086:2934] (rev 03)
Subsystem: Toshiba America Info Systems Device [1179:ff66]
Kernel driver in use: uhci_hcd
00:1d.1 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 [8086:2935] (rev 03)
Subsystem: Toshiba America Info Systems Device [1179:ff66]
Kernel driver in use: uhci_hcd
00:1d.2 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 [8086:2936] (rev 03)
Subsystem: Toshiba America Info Systems Device [1179:ff66]
Kernel driver in use: uhci_hcd
00:1d.3 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 [8086:2939] (rev 03)
Subsystem: Toshiba America Info Systems Device [1179:ff66]
Kernel driver in use: uhci_hcd
00:1d.7 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 [8086:293a] (rev 03)
Subsystem: Toshiba America Info Systems Device [1179:ff66]
Kernel driver in use: ehci_hcd
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev 93)
00:1f.0 ISA bridge [0601]: Intel Corporation ICH9M LPC Interface Controller [8086:2919] (rev 03)
Subsystem: Toshiba America Info Systems Device [1179:ff66]
Kernel modules: iTCO_wdt
00:1f.2 SATA controller [0106]: Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode] [8086:2929] (rev 03)
Subsystem: Toshiba America Info Systems Device [1179:ff66]
Kernel driver in use: ahci
Kernel modules: ahci
00:1f.3 SMBus [0c05]: Intel Corporation 82801I (ICH9 Family) SMBus Controller [8086:2930] (rev 03)
Subsystem: Toshiba America Info Systems Device [1179:ff66]
Kernel modules: i2c-i801
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 02)
Subsystem: Toshiba America Info Systems Device [1179:ff66]
Kernel driver in use: r8169
Kernel modules: r8169