For references, USB port failures can be fixed by removing SSDT21 (its
header below)

 * Disassembly of ssdt21.dat, Tue Jun 29 18:17:44 2021
 *
 * Original Table Header:
 *     Signature        "SSDT"
 *     Length           0x00000C14 (3092)
 *     Revision         0x02
 *     Checksum         0xFA
 *     OEM ID           "ACRSYS"
 *     OEM Table ID     "ACRPRDCT"
 *     OEM Revision     0x00000000 (0)
 *     Compiler ID      "1025"
 *     Compiler Version 0x00040000 (262144)
 */
DefinitionBlock ("", "SSDT", 2, "ACRSYS", "ACRPRDCT", 0x00000000)

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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/1933707

Title:
  Many ACPI errors

Status in linux package in Ubuntu:
  New

Bug description:
  Many ACPI errors in dmesg

  ProblemType: Bug
  DistroRelease: Ubuntu 21.04
  Package: linux-image-5.11.0-23-generic 5.11.0-23.24
  ProcVersionSignature: Ubuntu 5.11.0-23.24-generic 5.11.22
  Uname: Linux 5.11.0-23-generic x86_64
  ApportVersion: 2.20.11-0ubuntu65.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  kimathi    1338 F.... pulseaudio
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Jun 26 04:03:56 2021
  InstallationDate: Installed on 2021-04-25 (61 days ago)
  InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
  MachineType: Acer Aspire A515-56
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-23-generic 
root=UUID=0c5f066e-35cd-4f76-a271-a1c97ba74ee3 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-5.11.0-23-generic N/A
   linux-backports-modules-5.11.0-23-generic  N/A
   linux-firmware                             1.197.2
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/26/2021
  dmi.bios.release: 1.12
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V1.12
  dmi.board.asset.tag: Type2 - Board Chassis Location
  dmi.board.name: Iris_TL
  dmi.board.vendor: TGL
  dmi.board.version: V1.12
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.12
  dmi.ec.firmware.release: 1.12
  dmi.modalias: 
dmi:bvnInsydeCorp.:bvrV1.12:bd05/26/2021:br1.12:efr1.12:svnAcer:pnAspireA515-56:pvrV1.12:rvnTGL:rnIris_TL:rvrV1.12:cvnAcer:ct10:cvrV1.12:
  dmi.product.family: Aspire 5
  dmi.product.name: Aspire A515-56
  dmi.product.sku: 0000000000000000
  dmi.product.version: V1.12
  dmi.sys.vendor: Acer

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