Ciao, amici.
E' la prima volta che scrivo qui, il mio computer funzionava perfettamente fino a che non ho aggiornato kubuntu: all'accensione appare una finestra demone kde che mi chiede la password del wifi, mai successo prima, avevo network manager che si connetteva automaticamente, kwallet non era disabilitato ma gli avevo detto di non occuparsi del wifi fin dalla prima accensione. Comunque metto la password su questa finestra del demone, premo ok e riappare la finestra del demone che mi richiede la password! Posso mettere la password quante volte voglio ma non succede niente: mi riappare la finestra che mi chiede la password. ho provato a non mettere la password chiudendo la finestra con annulla e, anche col tasto x, e a quel punto mi appare una notification con la scritta in inglese che non ho dato nessun segreto, ho provato a mettere la password di root, ho disabilitato kwallet, ho cancellato la connesione e l'ho rifatta nuova, più volte, gli ho tolto la spunta a connetti automaticamente, gli rimesso la spunta a connetti automaticamente (la stessa cosa l'ho fatta anche alla connessione via cavo, che però non uso perchè sono lontano dal router), il segnale del wifi è superiore a 65%.
Altri dispositivi in casa usano la rete tranquillamente, quindi funziona! Ora sono collegato con una liveusb, alla schermata iniziale ho scelto l'opzione prova kubuntu ma non appena caricata mi riappare la finestra che mi chiede la password e rifà uguale, però in inglese. Adesso alla schermata di scelta (installa kubuntu o prova kubuntu) ho premuto il tasto esci e il pc si è riavviato con la liveusb senza chiedermi opzioni si è caricato il S.O. e si è connesso il wifi!
Mi dispiace di essere verboso ma vorrei aver spiegato la situazione esaurientemente.
Potrei postare qualsiasi cosa ma i dati sarebbero della live usb, o no? Forse qualcuno può aiutarmi, visto che non sono molto pratico!

Aggiungo che lo ha rifatto mentre ero connesso qui, ora sono di nuovo collegato con live usb però, stavolta connesso con prova kubuntu: si è connesso automaticamente senza chiedermi la password!
kubuntu@kubuntu:~$ mount
/cow on / type overlayfs (rw)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
/dev/sdb1 on /cdrom type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/loop0 on /rofs type squashfs (ro,noatime)
none on /sys/fs/cgroup type tmpfs (rw)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)
none on /sys/fs/pstore type pstore (rw)
systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd)
kubuntu@kubuntu:~$ lsusb
Bus 001 Device 004: ID 13fe:5100 Kingston Technology Company Inc. Flash Drive
Bus 001 Device 002: ID 148f:3072 Ralink Technology, Corp. RT3072 Wireless Adapter
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
kubuntu@kubuntu:~$ lspci
00:00.0 Host bridge: Intel Corporation 82915G/P/GV/GL/PL/910GL Memory Controller Hub (rev 04)
00:01.0 PCI bridge: Intel Corporation 82915G/P/GV/GL/PL/910GL PCI Express Root Port (rev 04)
00:1b.0 Audio device: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 2 (rev 03)
00:1d.0 USB controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 (rev 03)
00:1d.1 USB controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2 (rev 03)
00:1d.2 USB controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3 (rev 03)
00:1d.3 USB controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4 (rev 03)
00:1d.7 USB controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d3)
00:1f.0 ISA bridge: Intel Corporation 82801FB/FR (ICH6/ICH6R) LPC Interface Bridge (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) IDE Controller (rev 03)
00:1f.2 IDE interface: Intel Corporation 82801FR/FRW (ICH6R/ICH6RW) SATA Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) SMBus Controller (rev 03)
01:09.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller (rev 46)
01:0a.0 Communication controller: Conexant Systems, Inc. HSF 56k HSFi Modem (rev 01)
02:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8053 PCI-E Gigabit Ethernet Controller (rev 19)
04:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Park [Mobility Radeon HD 5430]
04:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Cedar HDMI Audio [Radeon HD 5400/6300 Series]
kubuntu@kubuntu:~$ df
File system 1K-blocchi Usati Disponib. Uso% Montato su
/cow 4056896 856592 2990896 23% /
udev 1541644 4 1541640 1% /dev
tmpfs 310268 1092 309176 1% /run
/dev/sdb1 15454272 5359800 10094472 35% /cdrom
/dev/loop0 980096 980096 0 100% /rofs
none 4 0 4 0% /sys/fs/cgroup
tmpfs 1551324 60 1551264 1% /tmp
none 5120 4 5116 1% /run/lock
none 1551324 80 1551244 1% /run/shm
none 102400 20 102380 1% /run/user
kubuntu@kubuntu:~$ df
File system 1K-blocchi Usati Disponib. Uso% Montato su
/cow 4056896 856592 2990896 23% /
udev 1541644 4 1541640 1% /dev
tmpfs 310268 1092 309176 1% /run
/dev/sdb1 15454272 5359800 10094472 35% /cdrom
/dev/loop0 980096 980096 0 100% /rofs
none 4 0 4 0% /sys/fs/cgroup
tmpfs 1551324 60 1551264 1% /tmp
none 5120 4 5116 1% /run/lock
none 1551324 80 1551244 1% /run/shm
none 102400 20 102380 1% /run/user
kubuntu@kubuntu:~$ free
total used free shared buffers cached
Mem: 3102648 2243740 858908 0 160316 1561652
-/+ buffers/cache: 521772 2580876
Swap: 3143676 0 3143676
kubuntu@kubuntu:~$ pstree
init─┬─NetworkManager─┬─dnsmasq
│ └─3*[{NetworkManager}]
├─accounts-daemon───2*[{accounts-daemon}]
├─acpid
├─avahi-daemon───avahi-daemon
├─bluetoothd
├─colord───2*[{colord}]
├─console-kit-dae───64*[{console-kit-dae}]
├─cron
├─cups-browsed
├─cupsd
├─dbus-daemon
├─lightdm─┬─Xorg───{Xorg}
│ ├─lightdm─┬─init─┬─dbus-daemon
│ │ │ ├─kactivitymanage───7*[{kactivitymanage}]
│ │ │ ├─kded4───8*[{kded4}]
│ │ │ ├─kdeinit4─┬─kio_http_cache_
│ │ │ │ ├─klauncher
│ │ │ │ └─ksmserver─┬─kwin───3*[{kwin}]
│ │ │ │ └─{ksmserver}
│ │ │ ├─kglobalaccel
│ │ │ ├─klipper
│ │ │ ├─kmix───2*[{kmix}]
│ │ │ ├─knotify4───{knotify4}
│ │ │ ├─konsole─┬─bash───pstree
│ │ │ │ └─2*[{konsole}]
│ │ │ ├─krunner───{krunner}
│ │ │ ├─kuiserver
│ │ │ ├─mission-control───2*[{mission-control}]
│ │ │ ├─plasma-desktop─┬─ksysguardd
│ │ │ │ └─4*[{plasma-desktop}]
│ │ │ ├─polkit-kde-auth───{polkit-kde-auth}
│ │ │ ├─pulseaudio───3*[{pulseaudio}]
│ │ │ ├─rekonq───7*[{rekonq}]
│ │ │ ├─ssh-agent
│ │ │ ├─start_kdeinit
│ │ │ ├─startkde───kwrapper4
│ │ │ ├─2*[upstart-dbus-br]
│ │ │ ├─upstart-event-b
│ │ │ └─upstart-file-br
│ │ └─{lightdm}
│ └─2*[{lightdm}]
├─6*[login───bash]
├─modem-manager
├─polkitd───2*[{polkitd}]
├─rsyslogd───3*[{rsyslogd}]
├─rtkit-daemon───2*[{rtkit-daemon}]
├─systemd-logind
├─systemd-shim───{systemd-shim}
├─systemd-udevd
├─udisks-daemon─┬─udisks-daemon
│ └─2*[{udisks-daemon}]
├─udisksd───4*[{udisksd}]
├─upowerd───2*[{upowerd}]
├─upstart-file-br
├─upstart-socket-
├─upstart-udev-br
└─wpa_supplicant
kubuntu@kubuntu:~$

Questo e il computer con liveusb senza wifi

luigi@luigi-System-Product-Name:~$ mount
/dev/sda5 on / type ext4 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/cgroup type tmpfs (rw)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)
none on /sys/fs/pstore type pstore (rw)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,relatime,cpuset)
cgroup on /sys/fs/cgroup/cpu type cgroup (rw,relatime,cpu)
cgroup on /sys/fs/cgroup/cpuacct type cgroup (rw,relatime,cpuacct)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,relatime,memory)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,relatime,devices)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,relatime,freezer)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,relatime,blkio)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,relatime,perf_event)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,relatime,hugetlb)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=luigi)
/dev/sda1 on /media/luigi/6D65-51F51 type vfat (rw,nosuid,nodev,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,showexec,flush,flush,uhelper=udisks2)
/dev/sr0 on /media/luigi/COMMANDO_1 type iso9660 (ro,nosuid,nodev,uid=1000,gid=1000,iocharset=utf8,mode=0400,dmode=0500,uhelper=udisks2)

luigi@luigi-System-Product-Name:~$ lsusb
Bus 001 Device 005: ID 148f:3072 Ralink Technology, Corp. RT3072 Wireless Adapter
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

luigi@luigi-System-Product-Name:~$ lspci
00:00.0 Host bridge: Intel Corporation 82915G/P/GV/GL/PL/910GL Memory Controller Hub (rev 04)
00:01.0 PCI bridge: Intel Corporation 82915G/P/GV/GL/PL/910GL PCI Express Root Port (rev 04)
00:1b.0 Audio device: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 2 (rev 03)
00:1d.0 USB controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 (rev 03)
00:1d.1 USB controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2 (rev 03)
00:1d.2 USB controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3 (rev 03)
00:1d.3 USB controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4 (rev 03)
00:1d.7 USB controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d3)
00:1f.0 ISA bridge: Intel Corporation 82801FB/FR (ICH6/ICH6R) LPC Interface Bridge (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) IDE Controller (rev 03)
00:1f.2 IDE interface: Intel Corporation 82801FR/FRW (ICH6R/ICH6RW) SATA Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) SMBus Controller (rev 03)
01:09.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller (rev 46)
01:0a.0 Communication controller: Conexant Systems, Inc. HSF 56k HSFi Modem (rev 01)
02:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8053 PCI-E Gigabit Ethernet Controller (rev 19)
04:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Park [Mobility Radeon HD 5430]
04:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Cedar HDMI Audio [Radeon HD 5400/6300 Series]

luigi@luigi-System-Product-Name:~$ df
File system 1K-blocchi Usati Disponib. Uso% Montato su
/dev/sda5 46306288 29646284 14284736 68% /
none 4 0 4 0% /sys/fs/cgroup
udev 1538984 4 1538980 1% /dev
tmpfs 310260 1212 309048 1% /run
none 5120 0 5120 0% /run/lock
none 1551292 80 1551212 1% /run/shm
none 102400 20 102380 1% /run/user
/dev/sda1 109709776 85649088 24060688 79% /media/luigi/6D65-51F51
/dev/sr0 692946 692946 0 100% /media/luigi/COMMANDO_1

luigi@luigi-System-Product-Name:~$ free
total used free shared buffers cached
Mem: 3102584 1704640 1397944 0 220924 798504
-/+ buffers/cache: 685212 2417372
Swap: 3143676 0 3143676

luigi@luigi-System-Product-Name:~$ ps -e
PID TTY TIME CMD
1 ? 00:00:02 init
2 ? 00:00:00 kthreadd
3 ? 00:00:20 ksoftirqd/0
5 ? 00:00:00 kworker/0:0H
7 ? 00:00:00 migration/0
8 ? 00:00:00 rcu_bh
9 ? 00:00:01 rcu_sched
10 ? 00:00:00 watchdog/0
11 ? 00:00:00 watchdog/1
12 ? 00:00:00 migration/1
13 ? 00:00:04 ksoftirqd/1
14 ? 00:00:00 kworker/1:0
15 ? 00:00:00 kworker/1:0H
16 ? 00:00:00 khelper
17 ? 00:00:00 kdevtmpfs
18 ? 00:00:00 netns
19 ? 00:00:00 writeback
20 ? 00:00:00 kintegrityd
21 ? 00:00:00 bioset
23 ? 00:00:00 kblockd
24 ? 00:00:00 ata_sff
25 ? 00:00:00 khubd
26 ? 00:00:00 md
27 ? 00:00:00 devfreq_wq
28 ? 00:00:00 kworker/0:1
29 ? 00:00:00 kworker/1:1
30 ? 00:00:00 khungtaskd
31 ? 00:00:00 kswapd0
32 ? 00:00:00 ksmd
33 ? 00:00:00 khugepaged
34 ? 00:00:00 fsnotify_mark
35 ? 00:00:00 ecryptfs-kthrea
36 ? 00:00:00 crypto
48 ? 00:00:00 kthrotld
50 ? 00:00:00 scsi_eh_0
51 ? 00:00:00 scsi_eh_1
52 ? 00:00:00 scsi_eh_2
54 ? 00:00:00 scsi_eh_3
77 ? 00:00:00 deferwq
78 ? 00:00:00 charger_manager
125 ? 00:00:00 firewire
126 ? 00:00:00 ttm_swap
171 ? 00:00:00 jbd2/sda5-8
172 ? 00:00:00 ext4-rsv-conver
173 ? 00:00:00 ext4-unrsv-conv
337 ? 00:00:00 upstart-udev-br
343 ? 00:00:00 systemd-udevd
454 ? 00:00:00 upstart-file-br
501 ? 00:00:00 kworker/u5:2
522 ? 00:00:00 kpsmoused
532 ? 00:00:02 rsyslogd
557 ? 00:00:00 hd-audio0
562 ? 00:00:00 hd-audio1
630 ? 00:00:00 upstart-socket-
633 ? 00:00:00 smbd
715 ? 00:00:03 dbus-daemon
753 ? 00:00:00 modem-manager
765 ? 00:00:00 bluetoothd
792 ? 00:00:00 systemd-logind
798 ? 00:00:00 krfcommd
805 ? 00:00:00 avahi-daemon
806 ? 00:00:00 avahi-daemon
826 ? 00:00:00 cupsd
881 ? 00:00:01 NetworkManager
887 tty4 00:00:00 getty
896 tty5 00:00:00 getty
910 tty2 00:00:00 getty
911 tty3 00:00:00 getty
914 tty6 00:00:00 getty
932 ? 00:00:00 cups-browsed
942 ? 00:00:00 polkitd
951 ? 00:00:00 acpid
953 ? 00:00:00 cron
966 ? 00:00:00 lightdm
1003 ? 00:00:00 colord
1042 ? 00:00:00 accounts-daemon
1065 ? 00:00:00 smbd
1088 ? 00:00:00 whoopsie
1102 ? 00:00:00 dnsmasq
1137 tty7 00:01:17 Xorg
1157 ? 00:00:00 lightdm
1160 ? 00:00:00 kauditd
1174 ? 00:00:00 init
1224 ? 00:00:00 iprt
1267 ? 00:00:00 xfs
1326 tty1 00:00:00 getty
1347 ? 00:00:00 gpg-agent
1351 ? 00:00:00 ssh-agent
1354 ? 00:00:01 dbus-daemon
1360 ? 00:00:00 upstart-event-b
1362 ? 00:00:00 window-stack-br
1372 ? 00:00:00 startkde
1381 ? 00:00:00 upstart-file-br
1383 ? 00:00:00 upstart-dbus-br
1385 ? 00:00:00 upstart-dbus-br
1387 ? 00:00:01 bamfdaemon
1398 ? 00:00:00 at-spi-bus-laun
1403 ? 00:00:00 dbus-daemon
1406 ? 00:00:00 at-spi2-registr
1412 ? 00:00:00 gvfsd
1417 ? 00:00:00 gvfsd-fuse
1435 ? 00:00:00 udisks-daemon
1436 ? 00:00:00 udisks-daemon
1463 ? 00:00:00 start_kdeinit
1464 ? 00:00:00 kdeinit4
1465 ? 00:00:00 klauncher
1467 ? 00:00:02 kded4
1471 ? 00:00:00 kglobalaccel
1481 ? 00:00:00 upowerd
1485 ? 00:00:00 kwrapper4
1486 ? 00:00:00 ksmserver
1523 ? 00:00:08 udisksd
1648 ? 00:00:32 kwin
1651 ? 00:00:00 kactivitymanage
1661 ? 00:00:31 plasma-desktop
1672 ? 00:00:00 kuiserver
1676 ? 00:00:00 mission-control
1695 ? 00:00:00 nepomukserver
1702 ? 00:00:00 nepomukstorage
1704 ? 00:00:00 zeitgeist-datah
1706 ? 00:00:03 krunner
1708 ? 00:00:00 deja-dup-monito
1713 ? 00:00:00 zeitgeist-daemo
1722 ? 00:00:00 pulseaudio
1724 ? 00:00:00 rtkit-daemon
1725 ? 00:00:01 kmix
1728 ? 00:00:00 polkit-kde-auth
1731 ? 00:00:00 klipper
1736 ? 00:00:00 gvfs-udisks2-vo
1744 ? 00:00:00 zeitgeist-fts
1763 ? 00:00:00 gvfs-gphoto2-vo
1769 ? 00:00:00 gvfs-afc-volume
1774 ? 00:00:00 gvfs-mtp-volume
1775 ? 00:00:00 cat
1796 ? 00:00:01 knotify4
1806 ? 00:00:16 virtuoso-t
1825 ? 00:00:01 nepomukfileinde
1827 ? 00:00:01 nepomukfilewatc
1846 ? 00:00:00 kwalletd
1848 ? 00:00:00 kwalletmanager
2478 ? 00:00:00 console-kit-dae
2836 ? 00:00:00 kworker/0:2
2852 ? 00:00:00 cfg80211
2879 ? 00:00:00 wpa_supplicant
2909 ? 00:00:01 kworker/u4:3
2910 ? 00:00:01 kworker/u4:0
2916 ? 00:00:00 dnsmasq
3059 ? 00:00:00 winbindd
3063 ? 00:00:00 nmbd
3065 ? 00:00:00 winbindd
3074 ? 00:02:48 firefox
3080 ? 00:00:00 gconfd-2
3097 ? 00:00:00 unity-webapps-s
3124 ? 00:00:00 kworker/u5:0
3168 ? 00:00:03 konsole
3171 pts/2 00:00:00 bash
4056 ? 00:00:00 gvfsd-metadata
4075 ? 00:00:00 ksysguardd
4136 ? 00:00:00 dhclient
4248 ? 00:00:00 kworker/u4:1
4312 pts/2 00:00:00 ps

luigi@luigi-System-Product-Name:~$ pstree
init─┬─NetworkManager─┬─dhclient
│ ├─dnsmasq
│ └─3*[{NetworkManager}]
├─accounts-daemon───2*[{accounts-daemon}]
├─acpid
├─avahi-daemon───avahi-daemon
├─bluetoothd
├─colord───2*[{colord}]
├─console-kit-dae───64*[{console-kit-dae}]
├─cron
├─cups-browsed
├─cupsd
├─dbus-daemon
├─dnsmasq
├─6*[getty]
├─lightdm─┬─Xorg───{Xorg}
│ ├─lightdm─┬─init─┬─at-spi-bus-laun─┬─dbus-daemon
│ │ │ │ └─3*[{at-spi-bus-laun}]
│ │ │ ├─at-spi2-registr───{at-spi2-registr}
│ │ │ ├─bamfdaemon───3*[{bamfdaemon}]
│ │ │ ├─dbus-daemon
│ │ │ ├─gconfd-2
│ │ │ ├─gpg-agent
│ │ │ ├─gvfs-afc-volume───2*[{gvfs-afc-volume}]
│ │ │ ├─gvfs-gphoto2-vo───{gvfs-gphoto2-vo}
│ │ │ ├─gvfs-mtp-volume───{gvfs-mtp-volume}
│ │ │ ├─gvfs-udisks2-vo───2*[{gvfs-udisks2-vo}]
│ │ │ ├─gvfsd───{gvfsd}
│ │ │ ├─gvfsd-fuse───4*[{gvfsd-fuse}]
│ │ │ ├─gvfsd-metadata───{gvfsd-metadata}
│ │ │ ├─kactivitymanage───7*[{kactivitymanage}]
│ │ │ ├─kded4───5*[{kded4}]
│ │ │ ├─kdeinit4─┬─deja-dup-monito───2*[{deja-dup-monito}]
│ │ │ │ ├─firefox───32*[{firefox}]
│ │ │ │ ├─klauncher
│ │ │ │ ├─ksmserver─┬─kwin───3*[{kwin}]
│ │ │ │ │ └─{ksmserver}
│ │ │ │ ├─nepomukserver─┬─nepomukfileinde───2*[{nepomukfileinde}]
│ │ │ │ │ ├─nepomukfilewatc───3*[{nepomukfilewatc}]
│ │ │ │ │ ├─nepomukstorage─┬─virtuoso-t───5*[{virtuoso-t}]
│ │ │ │ │ │ └─{nepomukstorage}
│ │ │ │ │ └─{nepomukserver}
│ │ │ │ └─zeitgeist-datah───4*[{zeitgeist-datah}]
│ │ │ ├─kglobalaccel
│ │ │ ├─klipper
│ │ │ ├─kmix───2*[{kmix}]
│ │ │ ├─knotify4───{knotify4}
│ │ │ ├─konsole─┬─bash───pstree
│ │ │ │ └─2*[{konsole}]
│ │ │ ├─krunner───2*[{krunner}]
│ │ │ ├─kuiserver
│ │ │ ├─kwalletd
│ │ │ ├─kwalletmanager
│ │ │ ├─mission-control───2*[{mission-control}]
│ │ │ ├─plasma-desktop─┬─ksysguardd
│ │ │ │ └─4*[{plasma-desktop}]
│ │ │ ├─polkit-kde-auth───{polkit-kde-auth}
│ │ │ ├─pulseaudio───3*[{pulseaudio}]
│ │ │ ├─ssh-agent
│ │ │ ├─start_kdeinit
│ │ │ ├─startkde───kwrapper4
│ │ │ ├─unity-webapps-s───2*[{unity-webapps-s}]
│ │ │ ├─2*[upstart-dbus-br]
│ │ │ ├─upstart-event-b
│ │ │ ├─upstart-file-br
│ │ │ ├─window-stack-br
│ │ │ ├─zeitgeist-daemo───{zeitgeist-daemo}
│ │ │ └─zeitgeist-fts─┬─cat
│ │ │ └─{zeitgeist-fts}
│ │ └─{lightdm}
│ └─2*[{lightdm}]
├─modem-manager
├─nmbd
├─polkitd───2*[{polkitd}]
├─rsyslogd───3*[{rsyslogd}]
├─rtkit-daemon───2*[{rtkit-daemon}]
├─smbd───smbd
├─systemd-logind
├─systemd-udevd
├─udisks-daemon─┬─udisks-daemon
│ └─2*[{udisks-daemon}]
├─udisksd───4*[{udisksd}]
├─upowerd───2*[{upowerd}]
├─upstart-file-br
├─upstart-socket-
├─upstart-udev-br
├─whoopsie───2*[{whoopsie}]
├─winbindd───winbindd
├─wpa_supplicant
└─xfs

luigi@luigi-System-Product-Name:~$ cat /etc/*-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=13.10
DISTRIB_CODENAME=saucy
DISTRIB_DESCRIPTION="Ubuntu 13.10"
NAME="Ubuntu"
VERSION="13.10, Saucy Salamander"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 13.10"
VERSION_ID="13.10"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"

Invece questo è il pc con il sistema normale. Connesso, stranamente senza nessun problema!


Aggiornamento, a chiunque possa interessare: se accendo il pc e aspetto un bel pò, posso connettermi tranquillamente (ho tolto la spunta a connetti automaticamente). Ho l'impressione che il problema derivi da qualche processo che rimane in attesa del disco rigido.
Proverò a modificare lo spazio tra le partizioni.