In the referenced bug, another reporter was asked to give the output of
lspci -nnk. In case it helps, here's the output of the command from my
machine:
00:00.0 Host bridge [0600]: Intel Corporation Device [8086:9b51]
Subsystem: Dell Device [1028:0962]
00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:9bca]
(rev 04)
DeviceName: To Be Filled by O.E.M.
Subsystem: Dell Device [1028:0962]
Kernel driver in use: i915
Kernel modules: i915
00:04.0 Signal processing controller [1180]: Intel Corporation Xeon E3-1200
v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem [8086:1903]
Subsystem: Dell Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor
Thermal Subsystem [1028:0962]
Kernel driver in use: proc_thermal
Kernel modules: processor_thermal_device
00:08.0 System peripheral [0880]: Intel Corporation Xeon E3-1200 v5/v6 /
E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model [8086:1911]
Subsystem: Dell Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core
Processor Gaussian Mixture Model [1028:0962]
00:12.0 Signal processing controller [1180]: Intel Corporation Comet Lake
Thermal Subsytem [8086:02f9]
Subsystem: Dell Comet Lake Thermal Subsytem [1028:0962]
00:14.0 USB controller [0c03]: Intel Corporation Device [8086:02ed]
Subsystem: Dell Device [1028:0962]
Kernel driver in use: xhci_hcd
00:14.2 RAM memory [0500]: Intel Corporation Device [8086:02ef]
Subsystem: Dell Device [1028:0962]
00:15.0 Serial bus controller [0c80]: Intel Corporation Serial IO I2C Host
Controller [8086:02e8]
Subsystem: Dell Serial IO I2C Host Controller [1028:0962]
Kernel driver in use: intel-lpss
Kernel modules: intel_lpss_pci
00:15.1 Serial bus controller [0c80]: Intel Corporation Comet Lake Serial IO
I2C Host Controller [8086:02e9]
Subsystem: Dell Device [1028:0962]
Kernel driver in use: intel-lpss
Kernel modules: intel_lpss_pci
00:16.0 Communication controller [0780]: Intel Corporation Comet Lake
Management Engine Interface [8086:02e0]
Subsystem: Dell Comet Lake Management Engine Interface [1028:0962]
Kernel driver in use: mei_me
Kernel modules: mei_me
00:1c.0 PCI bridge [0604]: Intel Corporation Device [8086:02bc] (rev f0)
Kernel driver in use: pcieport
00:1c.6 PCI bridge [0604]: Intel Corporation Device [8086:02be] (rev f0)
Kernel driver in use: pcieport
00:1d.0 PCI bridge [0604]: Intel Corporation Device [8086:02b0] (rev f0)
Kernel driver in use: pcieport
00:1d.4 PCI bridge [0604]: Intel Corporation Device [8086:02b4] (rev f0)
Kernel driver in use: pcieport
00:1f.0 ISA bridge [0601]: Intel Corporation Device [8086:0284]
Subsystem: Dell Device [1028:0962]
00:1f.3 Audio device [0403]: Intel Corporation Device [8086:02c8]
Subsystem: Dell Device [1028:0962]
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel, snd_sof_pci
00:1f.4 SMBus [0c05]: Intel Corporation Device [8086:02a3]
Subsystem: Dell Device [1028:0962]
Kernel driver in use: i801_smbus
Kernel modules: i2c_i801
00:1f.5 Serial bus controller [0c80]: Intel Corporation Comet Lake SPI (flash)
Controller [8086:02a4]
Subsystem: Dell Comet Lake SPI (flash) Controller [1028:0962]
01:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI
Express Card Reader [10ec:525a] (rev 01)
Subsystem: Dell RTS525A PCI Express Card Reader [1028:0962]
Kernel driver in use: rtsx_pci
Kernel modules: rtsx_pci
02:00.0 Network controller [0280]: Intel Corporation Wi-Fi 6 AX200 [8086:2723]
(rev 1a)
Subsystem: Bigfoot Networks, Inc. Wi-Fi 6 AX200 [1a56:1653]
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
03:00.0 PCI bridge [0604]: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C
step) [Alpine Ridge 4C 2016] [8086:15d3] (rev 02)
Kernel driver in use: pcieport
04:00.0 PCI bridge [0604]: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C
step) [Alpine Ridge 4C 2016] [8086:15d3] (rev 02)
Kernel driver in use: pcieport
04:01.0 PCI bridge [0604]: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C
step) [Alpine Ridge 4C 2016] [8086:15d3] (rev 02)
Kernel driver in use: pcieport
04:02.0 PCI bridge [0604]: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C
step) [Alpine Ridge 4C 2016] [8086:15d3] (rev 02)
Kernel driver in use: pcieport
04:04.0 PCI bridge [0604]: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C
step) [Alpine Ridge 4C 2016] [8086:15d3] (rev 02)
Kernel driver in use: pcieport
05:00.0 System peripheral [0880]: Intel Corporation JHL6540 Thunderbolt 3 NHI
(C step) [Alpine Ridge 4C 2016] [8086:15d2] (rev 02)
Subsystem: Dell JHL6540 Thunderbolt 3 NHI (C step) [Alpine Ridge 4C
2016] [1028:0962]
Kernel driver in use: thunderbolt
Kernel modules: thunderbolt
3b:00.0 USB controller [0c03]: Intel Corporation JHL6540 Thunderbolt 3 USB
Controller (C step) [Alpine Ridge 4C 2016] [8086:15d4] (rev 02)
Subsystem: Dell JHL6540 Thunderbolt 3 USB Controller (C step) [Alpine
Ridge 4C 2016] [1028:0962]
Kernel driver in use: xhci_hcd
71:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe
SSD Controller SM981/PM981/PM983 [144d:a808]
Subsystem: Samsung Electronics Co Ltd NVMe SSD Controller
SM981/PM981/PM983 [144d:a801]
Kernel driver in use: nvme
Kernel modules: nvme
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https://bugs.launchpad.net/bugs/1877217
Title:
WiFi Performance slow/unusable after upgrade from 19.10 -> 20.04
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