l'altro ieri sera ho fatto degli aggiornamenti al mio Ubuntu 12.04 e successivamente ho spento il PC. Ieri sono andato ad accenderlo, dopo un boot regolare, lo schermo diventa completamente nero a partire dal momento in cui carica Ubunto (per capirci, da quando dovrebbero apparire i puntini bianco/rossi che indicano il caricamento).
In seguito arriva il suono di richiesta PW ma non si vede nulla. Immettendola, il pc procede e arriva a caricare il desktop (lo capisco sempre dal segnale audio perché continuo a vedere uno schermo nero). Dopo un paio di minuti, con molta fatica e solo in qualche angolazione, vedo le icone sul desktop ma non è assolutamente possibile fare alcunché a causa della poca visibilità.
Ho provato a aumentare la luminosità tramite la tastiera ma non cambia nulla.
Successivamente ho provato con il CD live e funziona perfettamene così come la modalità di ripristino.
Ho trovato questa discussione che parla di un problema simile
Seguendo quella discussione (più altri spunti trovati qua e là), in ripristino ho provato a far correggere i pacchetti e controllo del disco (fsck) ma non è cambiato nulla.
Successivamente ho provato a caricare la versione precedente, la 3.2.0-49 (l'attuale è la 3.2.0.51) ma anche così è un buco nell'acqua.
In più ora, tanto per gradire, non riesco più ad accedere alla modalità di ripristino
Codice: Seleziona tutto
ubuntu@ubuntu:~$ lshw
WARNING: you should run this program as super-user.
ubuntu
description: Computer
width: 32 bits
*-core
description: Motherboard
physical id: 0
*-memory
description: System memory
physical id: 0
size: 4001MiB
*-cpu
product: Intel(R) Core(TM) i3-2330M CPU @ 2.20GHz
vendor: Intel Corp.
physical id: 1
bus info: cpu@0
version: 6.10.7
serial: 0002-06A7-0000-0000-0000-0000
size: 1GHz
capacity: 1GHz
width: 64 bits
capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx rdtscp x86-64 constant_tsc arch_perfmon pebs bts xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer xsave avx lahf_lm arat epb xsaveopt pln pts tpr_shadow vnmi flexpriority ept vpid cpufreq
configuration: id=3
*-logicalcpu:0
description: Logical CPU
physical id: 3.1
width: 64 bits
capabilities: logical
*-logicalcpu:1
description: Logical CPU
physical id: 3.2
width: 64 bits
capabilities: logical
*-logicalcpu:2
description: Logical CPU
physical id: 3.3
width: 64 bits
capabilities: logical
*-logicalcpu:3
description: Logical CPU
physical id: 3.4
width: 64 bits
capabilities: logical
*-logicalcpu:4
description: Logical CPU
physical id: 3.5
width: 64 bits
capabilities: logical
*-logicalcpu:5
description: Logical CPU
physical id: 3.6
width: 64 bits
capabilities: logical
*-logicalcpu:6
description: Logical CPU
physical id: 3.7
width: 64 bits
capabilities: logical
*-logicalcpu:7
description: Logical CPU
physical id: 3.8
width: 64 bits
capabilities: logical
*-logicalcpu:8
description: Logical CPU
physical id: 3.9
width: 64 bits
capabilities: logical
*-logicalcpu:9
description: Logical CPU
physical id: 3.a
width: 64 bits
capabilities: logical
*-logicalcpu:10
description: Logical CPU
physical id: 3.b
width: 64 bits
capabilities: logical
*-logicalcpu:11
description: Logical CPU
physical id: 3.c
width: 64 bits
capabilities: logical
*-logicalcpu:12
description: Logical CPU
physical id: 3.d
width: 64 bits
capabilities: logical
*-logicalcpu:13
description: Logical CPU
physical id: 3.e
width: 64 bits
capabilities: logical
*-logicalcpu:14
description: Logical CPU
physical id: 3.f
width: 64 bits
capabilities: logical
*-logicalcpu:15
description: Logical CPU
physical id: 3.10
width: 64 bits
capabilities: logical
*-pci
description: Host bridge
product: 2nd Generation Core Processor Family DRAM Controller
vendor: Intel Corporation
physical id: 100
bus info: pci@0000:00:00.0
version: 09
width: 32 bits
clock: 33MHz
*-pci:0
description: PCI bridge
product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port
vendor: Intel Corporation
physical id: 1
bus info: pci@0000:00:01.0
version: 09
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:40 ioport:d000(size=4096) memory:dfe00000-dfefffff ioport:c0000000(size=268435456)
*-display
description: VGA compatible controller
product: Seymour [Radeon HD 6400M Series]
vendor: Hynix Semiconductor (Hyundai Electronics)
physical id: 0
bus info: pci@0000:01:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: vga_controller bus_master cap_list rom
configuration: driver=radeon latency=0
resources: irq:51 memory:c0000000-cfffffff memory:dfe20000-dfe3ffff ioport:d000(size=256) memory:dfe00000-dfe1ffff
*-multimedia
description: Audio device
product: Caicos HDMI Audio [Radeon HD 6400 Series]
vendor: Hynix Semiconductor (Hyundai Electronics)
physical id: 0.1
bus info: pci@0000:01:00.1
version: 00
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:54 memory:dfe40000-dfe43fff
*-communication
description: Communication controller
product: 6 Series/C200 Series Chipset Family MEI Controller #1
vendor: Intel Corporation
physical id: 16
bus info: pci@0000:00:16.0
version: 04
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=mei latency=0
resources: irq:52 memory:dff0b000-dff0b00f
*-usb:0
description: USB controller
product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2
vendor: Intel Corporation
physical id: 1a
bus info: pci@0000:00:1a.0
version: 05
width: 32 bits
clock: 33MHz
capabilities: ehci bus_master cap_list
configuration: driver=ehci_hcd latency=0
resources: irq:16 memory:dff08000-dff083ff
*-multimedia
description: Audio device
product: 6 Series/C200 Series Chipset Family High Definition Audio Controller
vendor: Intel Corporation
physical id: 1b
bus info: pci@0000:00:1b.0
version: 05
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:53 memory:dff00000-dff03fff
*-pci:1
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 1
vendor: Intel Corporation
physical id: 1c
bus info: pci@0000:00:1c.0
version: b5
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:41 ioport:c000(size=4096) memory:df400000-dfdfffff ioport:d2200000(size=10485760)
*-pci:2
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 2
vendor: Intel Corporation
physical id: 1c.1
bus info: pci@0000:00:1c.1
version: b5
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:42 ioport:b000(size=4096) memory:dea00000-df3fffff ioport:d1700000(size=10485760)
*-network
description: Wireless interface
product: AR9285 Wireless Network Adapter (PCI-Express)
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlan0
version: 01
serial: c0:18:85:9a:0b:ed
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=3.2.0-23-generic-pae firmware=N/A latency=0 multicast=yes wireless=IEEE 802.11bgn
resources: irq:17 memory:dea00000-dea0ffff
*-pci:3
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 4
vendor: Intel Corporation
physical id: 1c.3
bus info: pci@0000:00:1c.3
version: b5
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:43 ioport:a000(size=4096) memory:de000000-de9fffff ioport:d0c00000(size=10485760)
*-usb
description: USB controller
product: ASM1042 SuperSpeed USB Host Controller
vendor: ASMedia Technology Inc.
physical id: 0
bus info: pci@0000:04:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: xhci bus_master cap_list
configuration: driver=xhci_hcd latency=0
resources: irq:19 memory:de000000-de007fff
*-pci:4
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 6
vendor: Intel Corporation
physical id: 1c.5
bus info: pci@0000:00:1c.5
version: b5
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:44 ioport:9000(size=4096) memory:dd600000-ddffffff ioport:d0100000(size=10485760)
*-network
description: Ethernet interface
product: AR8151 v2.0 Gigabit Ethernet
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:05:00.0
logical name: eth0
version: c0
serial: c8:60:00:2b:15:84
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.0-NAPI firmware=N/A latency=0 multicast=yes port=twisted pair
resources: irq:55 memory:dd600000-dd63ffff ioport:9000(size=128)
*-usb:1
description: USB controller
product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1
vendor: Intel Corporation
physical id: 1d
bus info: pci@0000:00:1d.0
version: 05
width: 32 bits
clock: 33MHz
capabilities: ehci bus_master cap_list
configuration: driver=ehci_hcd latency=0
resources: irq:23 memory:dff07000-dff073ff
*-isa
description: ISA bridge
product: HM65 Express Chipset Family LPC Controller
vendor: Intel Corporation
physical id: 1f
bus info: pci@0000:00:1f.0
version: 05
width: 32 bits
clock: 33MHz
capabilities: isa bus_master cap_list
configuration: latency=0
*-storage
description: SATA controller
product: 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller
vendor: Intel Corporation
physical id: 1f.2
bus info: pci@0000:00:1f.2
version: 05
width: 32 bits
clock: 66MHz
capabilities: storage ahci_1.0 bus_master cap_list
configuration: driver=ahci latency=0
resources: irq:45 ioport:e070(size=8) ioport:e060(size=4) ioport:e050(size=8) ioport:e040(size=4) ioport:e020(size=32) memory:dff06000-dff067ff
*-serial UNCLAIMED
description: SMBus
product: 6 Series/C200 Series Chipset Family SMBus Controller
vendor: Intel Corporation
physical id: 1f.3
bus info: pci@0000:00:1f.3
version: 05
width: 64 bits
clock: 33MHz
configuration: latency=0
resources: memory:dff05000-dff050ff ioport:e000(size=32)
*-scsi
physical id: 1
bus info: scsi@6
logical name: scsi6
capabilities: scsi-host
configuration: driver=usb-storage
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.
ubuntu@ubuntu:~$ lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5)
00:1c.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 (rev b5)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Seymour [Radeon HD 6400M Series]
01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Caicos HDMI Audio [Radeon HD 6400 Series]
03:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
04:00.0 USB controller: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller
05:00.0 Ethernet controller: Atheros Communications Inc. AR8151 v2.0 Gigabit Ethernet (rev c0)
ubuntu@ubuntu:~$
