This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1893624 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1893624 Title: Ryzen 4800u, kernel 5.8.5 boot errors (AMD-Vi, ACPI, HDCP, Bluetooth) Status in linux package in Ubuntu: Incomplete Bug description: Lenovo Ideapad S540 13ARE (AMD Ryzen 4800U). Ubuntu Budgie 20.04.1 LTS, updated kernel to 5.8.5. Secure Boot disabled. Clean install with entire disk (Windows came preinstalled) wiped out. Most things work just fine. If not for the errors shown during boot, I would not have noticed the issues.Video (native resolutions works), audio, wifi, suspend, the quick buttons (brightness, volume etc) all work fine. However during boot, errors are shortly shown: asterix@Idefix:~$ sudo dmesg -l err [ 3.204455] pci 0000:00:00.2: AMD-Vi: Unable to read/write to IOMMU perf counter. [ 4.901524] I2C multi instantiate pseudo device driver INT3515:00: IRQ index 1 not found [ 4.919327] snd_pci_acp3x 0000:03:00.5: Invalid ACP audio mode : 0 [ 4.939476] ACPI Error: No handler for Region [ECSI] (00000000bf2d92b9) [EmbeddedControl] (20200528/evregion-127) [ 4.939724] ACPI Error: Region EmbeddedControl (ID=3) has no handler (20200528/exfldio-261) [ 4.939929] ACPI Error: Aborting method \_SB.UBTC.ECRD due to previous error (AE_NOT_EXIST) (20200528/psparse-529) [ 4.940212] ACPI Error: Aborting method \_SB.UBTC._DSM due to previous error (AE_NOT_EXIST) (20200528/psparse-529) [ 4.940517] ucsi_acpi USBC000:00: ucsi_acpi_dsm: failed to evaluate _DSM 2 [ 5.235689] acp_pdm_mach acp_pdm_mach.0: snd_soc_register_card(acp) failed: -517 [ 6.273068] [drm:dm_helpers_dp_write_dpcd [amdgpu]] *ERROR* Failed to find connector for link! [ 6.273591] [drm:dm_helpers_dp_write_dpcd [amdgpu]] *ERROR* Failed to find connector for link! [ 6.273748] [drm:dm_helpers_dp_write_dpcd [amdgpu]] *ERROR* Failed to find connector for link! [ 7.036019] [drm:mod_hdcp_add_display_to_topology [amdgpu]] *ERROR* Failed to add display topology, DTM TA is not initialized. [ 7.891436] Bluetooth: hci0: Failed to send Intel_Write_DDC (-22)``` lspci-vnvn.log: https://pastebin.com/Kygie8nu What can I do to help solve this? Note I am not a developer and a Linux novice. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1893624/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp