Bonjour ,
En errant sur le Forum pour obtenir des infos en ligne de commande je suis tombé sur ceci :
dmesg -k -l emerg,alert,crit,err,warn
Et j'obtiens :
lubuntu@lubuntu-HP-Pavilion-dv7-Notebook-PC:~$ dmesg -k -l emerg,alert,crit,err,warn
[ 0.036000] core: CPUID marked event: 'bus cycles' unavailable
[ 0.036321] #2 #3
[ 0.044722] mtrr: your CPUs had inconsistent variable MTRR settings
[ 0.892867] [Firmware Bug]: Invalid critical threshold (0)
[ 0.894360] (NULL device *): hwmon_device_register() is deprecated. Please convert the driver to use hwmon_device_register_with_info().
[ 1.111588] r8169 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
[ 1.211561] nouveau 0000:01:00.0: bios: OOB 1 015f1901 015f1901
[ 2.551460] i801_smbus 0000:00:1f.3: BIOS is accessing SMBus registers
[ 2.551462] i801_smbus 0000:00:1f.3: Driver SMBus register access inhibited
[ 2.699481] ACPI Warning: SystemIO range 0x0000000000000428-0x000000000000042F conflicts with OpRegion 0x0000000000000400-0x000000000000047F (\PMIO) (20170831/utaddress-247)
[ 2.699500] ACPI Warning: SystemIO range 0x0000000000000540-0x000000000000054F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20170831/utaddress-247)
[ 2.699506] ACPI Warning: SystemIO range 0x0000000000000530-0x000000000000053F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20170831/utaddress-247)
[ 2.699512] ACPI Warning: SystemIO range 0x0000000000000500-0x000000000000052F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20170831/utaddress-247)
[ 2.699519] lpc_ich: Resource conflict(s) found affecting gpio_ich
[ 2.758421] hp_wmi: query 0xd returned error 0x5
[ 2.816319] WARNING: CPU: 1 PID: 350 at /build/linux-vxxS7y/linux-4.15.0/net/wireless/reg.c:894 regdb_fw_cb+0x47/0x110 [cfg80211]
[ 2.816321] Modules linked in: glue_helper cryptd intel_cstate input_leds wmi_bmof hp_wmi intel_ips serio_raw sparse_keymap arc4 brcmsmac cordic brcmutil mac80211 lpc_ich jmb38x_ms cfg80211 memstick snd_hda_codec_idt snd_hda_codec_generic snd_hda_intel snd_hda_codec ir_rc6_decoder snd_hda_core snd_hwdep snd_pcm rc_rc6_mce snd_timer snd shpchp ir_lirc_codec soundcore lirc_dev ene_ir rc_core hp_accel lis3lv02d input_polldev joydev mac_hid sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_generic usbhid hid nouveau mxm_wmi i2c_algo_bit ttm psmouse firewire_ohci drm_kms_helper firewire_core ahci syscopyarea sysfillrect i2c_i801 libahci sysimgblt fb_sys_fops crc_itu_t drm sdhci_pci r8169 sdhci bcma mii wmi video
[ 2.816370] CPU: 1 PID: 350 Comm: kworker/1:5 Not tainted 4.15.0-43-generic #46-Ubuntu
[ 2.816372] Hardware name: Hewlett-Packard HP Pavilion dv7 Notebook PC/365C, BIOS F.1D 10/05/2010
[ 2.816378] Workqueue: events request_firmware_work_func
[ 2.816396] RIP: 0010:regdb_fw_cb+0x47/0x110 [cfg80211]
[ 2.816397] RSP: 0018:ffff9aa2c17ebe40 EFLAGS: 00010287
[ 2.816399] RAX: ffff880a737fc000 RBX: ffff880a6ac257a0 RCX: 0000000000000000
[ 2.816400] RDX: ffff880a6c10d600 RSI: ffff9aa2c0cc1905 RDI: ffffffffb29e67a0
[ 2.816401] RBP: ffff9aa2c17ebe50 R08: 0000000000000004 R09: ffff9aa2c0cc1385
[ 2.816402] R10: ffffe89c48d3e840 R11: ffff880a7ffd1000 R12: ffff880a721477a0
[ 2.816403] R13: ffff880a7fc62180 R14: ffff880a7fc67500 R15: 0000000000000000
[ 2.816405] FS: 0000000000000000(0000) GS:ffff880a7fc40000(0000) knlGS:0000000000000000
[ 2.816406] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.816407] CR2: 00007ff0165485aa CR3: 000000017120a003 CR4: 00000000000206e0
[ 2.816409] Call Trace:
[ 2.816415] request_firmware_work_func+0x4b/0x90
[ 2.816421] process_one_work+0x1de/0x410
[ 2.816423] worker_thread+0x32/0x410
[ 2.816426] kthread+0x121/0x140
[ 2.816428] ? process_one_work+0x410/0x410
[ 2.816431] ? kthread_create_worker_on_cpu+0x70/0x70
[ 2.816433] ? kthread_create_worker_on_cpu+0x70/0x70
[ 2.816438] ret_from_fork+0x35/0x40
[ 2.816440] Code: 8b 7f 08 8b 33 e8 0a cf ff ff 84 c0 0f 84 a7 00 00 00 e8 fd ff 65 f1 48 8b 05 06 c1 06 00 48 85 c0 74 2e 48 3d 00 f0 ff ff 77 26 <0f> 0b bf 01 00 00 00 e8 6d fa ff ff e8 f8 ff 65 f1 4c 89 e7 e8
[ 2.816474] ---[ end trace 79f6683273227d2a ]---
[ 2.887011] uvcvideo 2-1.5:1.0: Entity type for entity Extension 5 was not initialized!
[ 2.887015] uvcvideo 2-1.5:1.0: Entity type for entity Extension 4 was not initialized!
[ 2.887017] uvcvideo 2-1.5:1.0: Entity type for entity Processing 3 was not initialized!
[ 2.887019] uvcvideo 2-1.5:1.0: Entity type for entity Camera 1 was not initialized!
[ 2.925128] kvm: disabled by bios
[ 3.848356] brcmsmac bcma0:1: brcms_ops_bss_info_changed: qos enabled: false (implement)
[ 3.848365] brcmsmac bcma0:1: brcms_ops_config: change power-save mode: false (implement)
[ 4.762486] brcmsmac bcma0:1: brcms_ops_bss_info_changed: qos enabled: true (implement)
[ 4.762503] brcmsmac bcma0:1: brcms_ops_config: change power-save mode: false (implement)
[ 4.764944] netlink: 'wpa_supplicant': attribute type 213 has an invalid length.
[ 4.765190] brcmsmac bcma0:1: brcms_ops_bss_info_changed: Beacon enabled: true
[ 4.766050] brcmsmac bcma0:1: brcms_ops_bss_info_changed: qos enabled: true (implement)
[ 4.766298] brcmsmac bcma0:1: brcms_ops_bss_info_changed: qos enabled: true (implement)
[ 4.766552] brcmsmac bcma0:1: brcms_ops_bss_info_changed: qos enabled: true (implement)
[ 4.766802] brcmsmac bcma0:1: brcms_ops_bss_info_changed: qos enabled: true (implement)
[ 21.932516] netlink: 'wpa_supplicant': attribute type 213 has an invalid length.
[ 21.934923] brcmsmac bcma0:1: wl0: brcms_c_d11hdrs_mac80211: txop exceeded phylen 137/256 dur 1602/1504
[ 21.940521] brcmsmac bcma0:1: wl0: brcms_c_d11hdrs_mac80211: txop exceeded phylen 241/256 dur 2434/1504
[ 605.035823] brcmsmac bcma0:1: wl0: brcms_c_d11hdrs_mac80211: txop exceeded phylen 201/256 dur 2114/1504
[ 1213.523362] netlink: 'wpa_supplicant': attribute type 213 has an invalid length.
[ 1216.514459] netlink: 'wpa_supplicant': attribute type 213 has an invalid length.
[ 1216.516826] brcmsmac bcma0:1: wl0: brcms_c_d11hdrs_mac80211: txop exceeded phylen 137/256 dur 1602/1504
[ 1216.522427] brcmsmac bcma0:1: wl0: brcms_c_d11hdrs_mac80211: txop exceeded phylen 241/256 dur 2434/1504
[ 1805.522808] brcmsmac bcma0:1: wl0: brcms_c_d11hdrs_mac80211: txop exceeded phylen 201/256 dur 2114/1504
[ 1805.522827] brcmsmac bcma0:1: wl0: brcms_c_d11hdrs_mac80211: txop exceeded phylen 201/256 dur 2114/1504
[ 2413.496295] netlink: 'wpa_supplicant': attribute type 213 has an invalid length.
[ 2432.819466] netlink: 'wpa_supplicant': attribute type 213 has an invalid length.
[ 2432.821831] brcmsmac bcma0:1: wl0: brcms_c_d11hdrs_mac80211: txop exceeded phylen 137/256 dur 1602/1504
[ 2432.827408] brcmsmac bcma0:1: wl0: brcms_c_d11hdrs_mac80211: txop exceeded phylen 241/256 dur 2434/1504
[ 2503.683455] netlink: 'wpa_supplicant': attribute type 213 has an invalid length.
lubuntu@lubuntu-HP-Pavilion-dv7-Notebook-PC:~$
Je m'intéresse particulièrement à cette ligne en indiquant que j'ai tout de même ma connexion wifi fonctionnelle :
netlink: 'wpa_supplicant': attribute type 213 has an invalid length
Dois-je m'inquiéter ?
Je placerais les autres messages d'erreurs dans des discussions différentes bientôt