Hello,
Using last 2020.1 i'm having the following bugs at boot on a Thinkpad X230:
extracts of my dmesg:

.../...
0.257715] x86: Booting SMP configuration:
[ 0.257716] .... node #0, CPUs: 0000001
[ 0.258735] MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details.
[ 0.258735] #2 #3
[ 0.261132] smp: Brought up 1 node, 4 CPUs
(NB: not using this PC as a cloud server nor use docker, so smt not disabled)
.../...

0.440570] ACPI: 6 ACPI AML tables successfully acquired and loaded
[ 0.441028] ACPI: EC: EC started
[ 0.441029] ACPI: EC: interrupt blocked
[ 0.441648] ACPI: \: Used as first EC
[ 0.441649] ACPI: \: GPE=0x11, EC_CMD/EC_SC=0x66, EC_DATA=0x62
[ 0.441650] ACPI: EC: Boot ECDT EC used to handle transactions
[ 0.441889] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[ 0.446369] ACPI: Dynamic OEM Table Load:
[ 0.446377] ACPI: SSDT 0xFFFF8F470B81D000 000A01 (v01 PmRef Cpu0Cst 00003001 INTL 20061109)
.../...
0.448606] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem 0xf8000000-0xfbffffff] (base 0xf8000000)
[ 0.448990] PCI: MMCONFIG at [mem 0xf8000000-0xfbffffff] reserved in ACPI motherboard resources
[ 0.448998] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 0.449242] ACPI: Enabled 6 GPEs in block 00 to 3F
.../...
0.476689] AppArmor: AppArmor Filesystem Enabled
[ 0.476705] pnp: PnP ACPI init
[ 0.477069] system 00:00: [mem 0x00000000-0x0009ffff] could not be reserved
[ 0.477072] system 00:00: [mem 0x000f0000-0x000fffff] could not be reserved
[ 0.477073] system 00:00: [mem 0x00100000-0xdf9fffff] could not be reserved
[ 0.477075] system 00:00: [mem 0xfec00000-0xffffffff] could not be reserved
[ 0.477080] system 00:00: Plug and Play ACPI device, IDs PNP0c01 (active)
[ 0.477190] pnp 00:01: [Firmware Bug]: PNP resource [mem 0xfed10000-0xfed13fff] covers only part of 0000:00:00.0 Intel MCH; extending to [mem 0xfed10000-0xfed17fff]
[ 0.477208] system 00:01: [io 0x0400-0x047f] has been reserved
[ 0.477210] system 00:01: [io 0x0500-0x057f] has been reserved
[ 0.477211] system 00:01: [io 0x0800-0x080f] has been reserved
[ 0.477212] system 00:01: [io 0x15e0-0x15ef] has been reserved
[ 0.477213] system 00:01: [io 0x1600-0x167f] has been reserved
[ 0.477216] system 00:01: [mem 0xf8000000-0xfbffffff] could not be reserved
[ 0.477217] system 00:01: [mem 0xfffff000-0xffffffff] has been reserved
[ 0.477218] system 00:01: [mem 0xfed1c000-0xfed1ffff] has been reserved
.../...
[ 1.415243] mmc0: SDHCI controller on PCI [0000:02:00.0] using DMA
[ 1.416175] ACPI Warning: SystemIO range 0x0000000000000428-0x000000000000042F conflicts with OpRegion 0x0000000000000400-0x000000000000047F (_SB.PCI0.LPC.PMIO) (20190816/utaddress-204)
[ 1.416180] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[ 1.416186] ACPI Warning: SystemIO range 0x0000000000000540-0x000000000000054F conflicts with OpRegion 0x0000000000000500-0x000000000000057F (_SB.PCI0.LPC.LPIO) (20190816/utaddress-204)
[ 1.416190] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[ 1.416191] ACPI Warning: SystemIO range 0x0000000000000530-0x000000000000053F conflicts with OpRegion 0x0000000000000500-0x000000000000057F (_SB.PCI0.LPC.LPIO) (20190816/utaddress-204)
[ 1.416194] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[ 1.416195] ACPI Warning: SystemIO range 0x0000000000000500-0x000000000000052F conflicts with OpRegion 0x0000000000000500-0x000000000000057F (_SB.PCI0.LPC.LPIO) (20190816/utaddress-204)
[ 1.416198] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[ 1.416199] lpc_ich: Resource conflict(s) found affecting gpio_ich
[ 1.419805] i801_smbus 0000:00:1f.3: SMBus using PCI interrupt
[ 1.422355] SCSI subsystem initialized
.../...
2.505135] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] ERROR uncleared fifo underrun on pipe A
[ 2.505222] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] ERROR CPU pipe A FIFO underrun
[ 2.505326] [drm:intel_set_pch_fifo_underrun_reporting [i915]] ERROR uncleared pch fifo underrun on pch transcoder A
[ 2.505397] [drm:cpt_irq_handler [i915]] ERROR PCH transcoder A FIFO underrun

thanx a lot, hope this helps....