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[Thierry FAVRE <question692600@xxxxxxxxxxxxxxxxxxxxx>]

Question #692600 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/692600

    Status: Needs information => Open

Thierry FAVRE gave more information on the question:
Hello Manfred !
It is a build in WLAN device.
The output of dmesg | grep "Modules linked in" -B 10 -A 30 is
[    2.944639] VGA switcheroo: detected Optimus DSM method \_SB_.PCI0.PEGR.GFX0 handle
[    2.944667] nouveau 0000:01:00.0: enabling device (0000 -> 0003)
[    2.944876] nouveau 0000:01:00.0: NVIDIA GF108 (0c1a00a1)
[    2.949843] media: Linux media interface: v0.10
[    2.952446] AVX version of gcm_enc/dec engaged.
[    2.952448] AES CTR mode by8 optimization enabled
[    2.956729] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs'
[    2.970597] ------------[ cut here ]------------
[    2.970599] Could not determine valid watermarks for inherited state
[    2.970679] WARNING: CPU: 5 PID: 356 at /build/linux-iHr4uk/linux-4.15.0/drivers/gpu/drm/i915/intel_display.c:14537 intel_modeset_init+0xfcf/0x1010 [i915]
[    2.970679] Modules linked in: snd_seq_midi aesni_intel(+) arc4 media aes_x86_64 crypto_simd snd_seq_midi_event glue_helper cryptd iwldvm intel_cstate nouveau(+) snd_rawmidi mac80211 i915(+) uas usb_storage intel_rapl_perf snd_seq mxm_wmi iwlwifi ttm joydev rtsx_usb drm_kms_helper snd_seq_device input_leds snd_timer drm cfg80211 i2c_algo_bit serio_raw fb_sys_fops snd syscopyarea mei_me sysfillrect sysimgblt soundcore mei lpc_ich shpchp mac_hid wmi video sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_logitech_hidpp hid_logitech_dj hid_generic usbhid hid psmouse ahci r8169 libahci mii
[    2.970712] CPU: 5 PID: 356 Comm: systemd-udevd Not tainted 4.15.0-122-generic #124-Ubuntu
[    2.970713] Hardware name: ASUSTeK Computer Inc. K53SV/K53SV, BIOS K53SV.324 12/30/2011
[    2.970760] RIP: 0010:intel_modeset_init+0xfcf/0x1010 [i915]
[    2.970761] RSP: 0018:ffffba40013d79b0 EFLAGS: 00010286
[    2.970763] RAX: 0000000000000000 RBX: ffffa0bd013e0000 RCX: 0000000000000006
[    2.970764] RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffffa0bd07156490
[    2.970765] RBP: ffffba40013d7a40 R08: 0000000000000361 R09: 0000000000000004
[    2.970767] R10: 0000000000000040 R11: 0000000000000001 R12: ffffa0bd027bf000
[    2.970768] R13: ffffa0bd01990000 R14: 00000000ffffffea R15: ffffa0bd013e0358
[    2.970770] FS:  00007ffbc5371680(0000) GS:ffffa0bd07140000(0000) knlGS:0000000000000000
[    2.970771] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.970772] CR2: 00007fff577f3a98 CR3: 0000000242b6a001 CR4: 00000000000606e0
[    2.970773] Call Trace:
[    2.970815]  i915_driver_load+0xa73/0xe60 [i915]
[    2.970853]  i915_pci_probe+0x42/0x70 [i915]
[    2.970856]  local_pci_probe+0x47/0xa0
[    2.970859]  pci_device_probe+0xf1/0x1d0
[    2.970863]  driver_probe_device+0x30c/0x4a0
[    2.970865]  __driver_attach+0xcc/0xf0
[    2.970867]  ? driver_probe_device+0x4a0/0x4a0
[    2.970869]  bus_for_each_dev+0x70/0xc0
[    2.970872]  driver_attach+0x1e/0x20
[    2.970874]  bus_add_driver+0x1c7/0x270
[    2.970876]  ? 0xffffffffc06c2000
[    2.970878]  driver_register+0x60/0xe0
[    2.970879]  ? 0xffffffffc06c2000
[    2.970881]  __pci_register_driver+0x5a/0x60
[    2.970923]  i915_init+0x5c/0x5f [i915]
[    2.970926]  do_one_initcall+0x52/0x19f
[    2.970929]  ? __vunmap+0xb5/0xe0

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