Eu já pesquisei na Web, mas não encontrei uma solução adequada para o meu problema. os drivers são os mais novos (diretamente das páginas intel).
Estou executando o Fedora 20 em um Lenovo Thinkpad T440s recentemente comprado com um dispositivo Intel 7260 WLAN. Desde o dia do recebimento e logo após a instalação do Fedora 19, eu tenho problemas de conexão via LAN sem fio (via Ethernet não em todos). Após uma atualização para o Fedora 20, o problema continuou.
Minha única abordagem é esse extrato do meu log (os erros são quase sempre os mesmos), que você pode ver aqui (é novo)
Mar 27 19:32:21 stealth dbus[956]: [system] Successfully activated service 'org.freedesktop.problems'
Mar 27 19:32:22 stealth abrt-server: Duplicate: core backtrace
Mar 27 19:32:22 stealth abrt-server: DUP_OF_DIR: /var/tmp/abrt/oops-2014-03-21-11:15:57-2106-0
Mar 27 19:32:22 stealth abrt-server: Deleting problem directory oops-2014-03-27-19:32:20-1827-1 (dup of oops-2014-03-21-11:15:57-2106-0)
Mar 27 19:32:23 stealth abrt-dump-oops: Reported 2 kernel oopses to Abrt
Mar 27 19:32:27 stealth kernel: [ 334.542883] iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 0 [0x5a5a5a5a]
Mar 27 19:32:27 stealth kernel: [ 336.380011] iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 2 [0x5a5a5a5a]
Mar 27 19:32:27 stealth kernel: [ 338.254690] iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 5 [0x5a5a5a5a]
Mar 27 19:32:27 stealth kernel: [ 340.095838] iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 7 [0x5a5a5a5a]
Mar 27 19:32:27 stealth kernel: iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 0 [0x5a5a5a5a]
Mar 27 19:32:27 stealth kernel: iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 2 [0x5a5a5a5a]
Mar 27 19:32:27 stealth kernel: iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 5 [0x5a5a5a5a]
Mar 27 19:32:27 stealth kernel: iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 7 [0x5a5a5a5a]
Mar 27 19:32:29 stealth kernel: [ 341.900469] iwlwifi 0000:03:00.0: L1 Disabled; Enabling L0S
Mar 27 19:32:29 stealth kernel: [ 341.918142] [sched_delayed] sched: RT throttling activated
Mar 27 19:32:29 stealth kernel: iwlwifi 0000:03:00.0: L1 Disabled; Enabling L0S
Mar 27 19:32:29 stealth kernel: [sched_delayed] sched: RT throttling activated
Mar 27 19:32:29 stealth kernel: [ 342.041989] iwlwifi 0000:03:00.0: L1 Disabled; Enabling L0S
Mar 27 19:32:29 stealth kernel: iwlwifi 0000:03:00.0: L1 Disabled; Enabling L0S
Mar 27 19:32:42 stealth kernel: [ 347.860153] iwlwifi 0000:03:00.0: Failed to load firmware chunk!
Mar 27 19:32:42 stealth kernel: [ 347.860158] iwlwifi 0000:03:00.0: Could not load the [0] uCode section
Mar 27 19:32:42 stealth kernel: [ 347.860163] iwlwifi 0000:03:00.0: Failed to start RT ucode: -110
Mar 27 19:32:42 stealth kernel: [ 349.672452] iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 0 [0x5a5a5a5a]
Mar 27 19:32:42 stealth kernel: [ 351.511049] iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 2 [0x5a5a5a5a]
Mar 27 19:32:42 stealth kernel: [ 353.384834] iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 5 [0x5a5a5a5a]
Mar 27 19:32:42 stealth kernel: [ 355.223474] iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 7 [0x5a5a5a5a]
Mar 27 19:32:42 stealth kernel: iwlwifi 0000:03:00.0: Failed to load firmware chunk!
Mar 27 19:32:42 stealth kernel: iwlwifi 0000:03:00.0: Could not load the [0] uCode section
Mar 27 19:32:42 stealth kernel: iwlwifi 0000:03:00.0: Failed to start RT ucode: -110
Mar 27 19:32:42 stealth kernel: iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 0 [0x5a5a5a5a]
Mar 27 19:32:42 stealth kernel: iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 2 [0x5a5a5a5a]
Mar 27 19:32:42 stealth kernel: iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 5 [0x5a5a5a5a]
Mar 27 19:32:42 stealth kernel: iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 7 [0x5a5a5a5a]
Mar 27 19:33:02 stealth dbus-daemon: dbus[956]: [system] Activating via systemd: service name='org.freedesktop.ModemManager1' unit='dbus-org.freedesktop.ModemManager1.service'
Mar 27 19:33:02 stealth dbus[956]: [system] Activating via systemd: service name='org.freedesktop.ModemManager1' unit='dbus-org.freedesktop.ModemManager1.service'
Mar 27 19:33:02 stealth dbus[956]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.ModemManager1.service': Unit dbus-org.freedesktop.ModemManager1.service failed to load: No such file or directory.
Mar 27 19:33:02 stealth dbus-daemon: dbus[956]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.ModemManager1.service': Unit dbus-org.freedesktop.ModemManager1.service failed to load: No such file or directory.
Mar 27 19:34:17 stealth kernel: [ 450.493045] iwlwifi 0000:03:00.0: iwl_trans_send_cmd bad state = 0
Mar 27 19:34:17 stealth kernel: [ 450.493050] iwlwifi 0000:03:00.0: Scan failed! status 0x1 ret -5
Mar 27 19:34:17 stealth kernel: iwlwifi 0000:03:00.0: iwl_trans_send_cmd bad state = 0
Mar 27 19:34:17 stealth kernel: iwlwifi 0000:03:00.0: Scan failed! status 0x1 ret -5
Para mais informações, aqui está a% relevante co_de% output
03:00.0 Network controller: Intel Corporation Wireless 7260 (rev 83)
e minha lspci list
0: tpacpi_bluetooth_sw: Bluetooth
Soft blocked: no
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
16: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
Alguém tem alguma ideia do que está causando esse problema e como resolvê-lo?