The only error shown in /var/log/boot.log:
[FAILED] Failed to start Load/Save Screen Backlight Brightness of
backlight:acpi_video0.
See 'systemctl status systemd-backlight@backlight:acpi_video0.service' for
details.
which I solved with the command:
systemctl mask systemd-backlight@backlight:acpi_video0.service
With kernel 5.8.18 I still see the earlier mentioned errors and
warnings. Not sure if this means less performance in 3D applications?
$ sudo dmesg --level=err,warn
[ 0.318622] TSC synchronization [CPU#0 -> CPU#1]:
[ 0.318622] Measured 453215862 cycles TSC warp between CPUs, turning off TSC
clock.
[ 0.318622] #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14 #15
[ 2.666156] pci 0000:00:00.2: AMD-Vi: Unable to read/write to IOMMU perf
counter.
[ 2.666298] pci 0000:00:00.2: can't derive routing for PCI INT A
[ 2.666299] pci 0000:00:00.2: PCI INT A: not connected
[ 2.667642] PPR X2APIC NX GT IA GA PC GA_vAPIC
[ 2.737746] i8042: PNP: PS/2 appears to have AUX port disabled, if this is
incorrect please boot with i8042.nopnp
[ 2.740046] platform eisa.0: EISA: Cannot allocate resource for mainboard
[ 2.740048] platform eisa.0: Cannot allocate resource for EISA slot 1
[ 2.740049] platform eisa.0: Cannot allocate resource for EISA slot 2
[ 2.740049] platform eisa.0: Cannot allocate resource for EISA slot 3
[ 2.740049] platform eisa.0: Cannot allocate resource for EISA slot 4
[ 2.740050] platform eisa.0: Cannot allocate resource for EISA slot 5
[ 2.740050] platform eisa.0: Cannot allocate resource for EISA slot 6
[ 2.740051] platform eisa.0: Cannot allocate resource for EISA slot 7
[ 2.740051] platform eisa.0: Cannot allocate resource for EISA slot 8
[ 2.798587] Unstable clock detected, switching default tracing clock to
"global"
If you want to keep using the local clock, then add:
"trace_clock=local"
on the kernel command line
[ 2.962855] i2c_hid i2c-ITE8227:00: supply vdd not found, using dummy
regulator
[ 2.962885] i2c_hid i2c-ITE8227:00: supply vddl not found, using dummy
regulator
[ 2.964303] acpi PNP0C14:01: duplicate WMI GUID
05901221-D566-11D1-B2F0-00A0C9062910 (first instance was on PNP0C14:00)
[ 2.964386] acpi PNP0C14:02: duplicate WMI GUID
05901221-D566-11D1-B2F0-00A0C9062910 (first instance was on PNP0C14:00)
[ 2.979559] nvme nvme0: missing or invalid SUBNQN field.
[ 3.275362] i2c_hid i2c-MSFT0001:00: supply vdd not found, using dummy
regulator
[ 3.275383] i2c_hid i2c-MSFT0001:00: supply vddl not found, using dummy
regulator
[ 4.346318] snd_pci_acp3x 0000:03:00.5: Invalid ACP audio mode : 0
[ 4.370739] ACPI Error: No handler for Region [ECSI] (000000005ff1a6f4)
[EmbeddedControl] (20200528/evregion-127)
[ 4.371044] ACPI Error: Region EmbeddedControl (ID=3) has no handler
(20200528/exfldio-261)
[ 4.371290] No Local Variables are initialized for Method [ECRD]
[ 4.371292] No Arguments are initialized for method [ECRD]
[ 4.371302] ACPI Error: Aborting method \_SB.UBTC.ECRD due to previous error
(AE_NOT_EXIST) (20200528/psparse-529)
[ 4.371582] ACPI Error: Aborting method \_SB.UBTC._DSM due to previous error
(AE_NOT_EXIST) (20200528/psparse-529)
[ 4.371890] ACPI: \_SB_.UBTC: failed to evaluate _DSM (0x6)
[ 4.371898] ucsi_acpi USBC000:00: ucsi_acpi_dsm: failed to evaluate _DSM 2
[ 4.442211] iwlwifi 0000:01:00.0: Direct firmware load for
iwlwifi-cc-a0-56.ucode failed with error -2
[ 4.442371] iwlwifi 0000:01:00.0: Direct firmware load for
iwlwifi-cc-a0-55.ucode failed with error -2
[ 4.442408] iwlwifi 0000:01:00.0: Direct firmware load for
iwlwifi-cc-a0-54.ucode failed with error -2
[ 4.442428] iwlwifi 0000:01:00.0: Direct firmware load for
iwlwifi-cc-a0-53.ucode failed with error -2
[ 4.442551] iwlwifi 0000:01:00.0: Direct firmware load for
iwlwifi-cc-a0-52.ucode failed with error -2
[ 4.442581] iwlwifi 0000:01:00.0: Direct firmware load for
iwlwifi-cc-a0-51.ucode failed with error -2
[ 4.442603] iwlwifi 0000:01:00.0: Direct firmware load for
iwlwifi-cc-a0-50.ucode failed with error -2
[ 4.442708] iwlwifi 0000:01:00.0: Direct firmware load for
iwlwifi-cc-a0-49.ucode failed with error -2
[ 4.445956] iwlwifi 0000:01:00.0: Direct firmware load for
iwl-debug-yoyo.bin failed with error -2
[ 4.603172] acp_pdm_mach acp_pdm_mach.0: snd_soc_register_card(acp) failed:
-517
[ 4.603260] acp_pdm_mach acp_pdm_mach.0: snd_soc_register_card(acp) failed:
-517
[ 4.812215] thermal thermal_zone0: failed to read out thermal zone (-61)
[ 5.498758] ucsi_acpi: probe of USBC000:00 failed with error -5
[ 5.572192] kauditd_printk_skb: 31 callbacks suppressed
[ 5.623264] [drm:dm_helpers_dp_write_dpcd [amdgpu]] *ERROR* Failed to find
connector for link!
[ 5.623920] [drm:dm_helpers_dp_write_dpcd [amdgpu]] *ERROR* Failed to find
connector for link!
[ 5.624513] [drm:dm_helpers_dp_write_dpcd [amdgpu]] *ERROR* Failed to find
connector for link!
[ 5.949908] iwlwifi 0000:01:00.0: FW already configured (0) - re-configuring
asterix@Idefix:~$
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1897392
Title:
Ryzen 4800u, kernel 5.8.11 boot errors (AMD-Vi, ACPI, HDCP, Bluetooth)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1897392/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
