The first of the new issues is bug 2017137

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https://bugs.launchpad.net/bugs/2011817

Title:
  Intel Alder Lake GPU performance much lower in 6.1/6.2 compared to
  5.19

Status in Linux:
  Unknown
Status in linux package in Ubuntu:
  Fix Released

Bug description:
  Intel Alder Lake GPU performance is much lower in 6.1 compared to
  5.19.

  For example, benchmarking gnome-shell main running on Xorg:

  6.1.0-16-generic
  30.02 FPS, average: 15.5ms, peak: 16.4ms
  intel_gpu_top says 211/208 MHz despite gt_min_freq_mhz==300

  5.19.0-21-generic
  60.00 FPS, average: 8.3ms, peak: 8.7ms
  intel_gpu_top says 542/560 MHz

  The issue is so severe in 6.1.0-16-generic that even triple buffering
  can't fix it for Xorg sessions. It does for Wayland though.

  I can work around it with `cp gt_max_freq_mhz gt_min_freq_mhz` but
  probably shouldn't need to.

  ProblemType: Bug
  DistroRelease: Ubuntu 23.04
  Package: linux-image-6.1.0-16-generic 6.1.0-16.16
  ProcVersionSignature: Ubuntu 6.1.0-16.16-generic 6.1.6
  Uname: Linux 6.1.0-16-generic x86_64
  ApportVersion: 2.26.0-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  dan        1730 F.... wireplumber
   /dev/snd/seq:        dan        1727 F.... pipewire
  CRDA: N/A
  CasperMD5CheckResult: pass
  Date: Thu Mar 16 19:31:50 2023
  InstallationDate: Installed on 2022-11-28 (108 days ago)
  InstallationMedia: Ubuntu 23.04 "Lunar Lobster" - Alpha amd64 (20221126)
  MachineType: Intel(R) Client Systems NUC12DCMi7
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.1.0-16-generic 
root=UUID=3a6db1e7-0341-452a-80e1-2895838feeac ro quiet splash vt.handoff=7
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No 
PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-6.1.0-16-generic N/A
   linux-backports-modules-6.1.0-16-generic  N/A
   linux-firmware                            20230302.git60971a64-0ubuntu1
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/20/2021
  dmi.bios.release: 5.24
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: EDADL579.0046.2021.1220.2351
  dmi.board.name: NUC12EDBi7
  dmi.board.vendor: Intel Corporation
  dmi.board.version: M27908-302
  dmi.chassis.type: 35
  dmi.chassis.vendor: Intel Corporation
  dmi.chassis.version: 2.0
  dmi.ec.firmware.release: 3.7
  dmi.modalias: 
dmi:bvnIntelCorp.:bvrEDADL579.0046.2021.1220.2351:bd12/20/2021:br5.24:efr3.7:svnIntel(R)ClientSystems:pnNUC12DCMi7:pvrM30143-302:rvnIntelCorporation:rnNUC12EDBi7:rvrM27908-302:cvnIntelCorporation:ct35:cvr2.0:skuRNUC12DCMi70000:
  dmi.product.family: DC
  dmi.product.name: NUC12DCMi7
  dmi.product.sku: RNUC12DCMi70000
  dmi.product.version: M30143-302
  dmi.sys.vendor: Intel(R) Client Systems

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