[Impact]
In e.g. the Unigine benchmark, the linux-firmware packages drops the performance of my AMD RX 6650 XT GPU from 98 FPS in 1080p-high down to 23 FPS. That wasn't a problem in Mint 20.3 with kernel 5.15 (Ubuntu 20.04 based).
Getting the firmware directly from git brings the performance back to about 100 FPS:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
cd linux-firmware
sudo make install
sudo update-initramfs -c -k all
[Fix]
Update amdgpu/dimgrey_cavefish_* firmware files to latest versions from kernel.org.
[Test Case]
See original description.
[Where Problems Could Occur]
Isolated to AMD GPUs that use dimgrey_cavefish firmware blobs.
[Original Description]
Kernel: 5.15.0-43-generic
linux-firmware: 20220329.git681281e4-0ubuntu3.3
Tested with: Mint 21 Cinnamon (Ubuntu 22.04 based)
In e.g. the Unigine benchmark, the linux-firmware packages drops the performance of my AMD RX 6650 XT GPU from 98 FPS in 1080p-high down to 23 FPS. That wasn't a problem in Mint 20.3 with kernel 5.15 (Ubuntu 20.04 based).
Getting the firmware directly from git brings the performance back to about 100 FPS:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
cd linux-firmware
sudo make install
sudo update-initramfs -c -k all
Re-installing the linux-firmware package causes the performance to drop again. So there is a problem with the linux firmware at least for the RX 6650 XT, maybe for the whole RX 6000 series.
The linux-firmware package in Ubuntu 22.04 should be updated.
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: daelach 1352 F.... pulseaudio
/dev/snd/controlC0: daelach 1352 F.... pulseaudio
/dev/snd/controlC1: daelach 1352 F.... pulseaudio
CasperMD5CheckResult: unknown
CurrentDesktop: X-Cinnamon
Dependencies: firmware-sof-signed 2.0-1ubuntu3 [origin: Ubuntu]
DistroRelease: Linux Mint 21
InstallationDate: Installed on 2020-08-24 (714 days ago)
InstallationMedia: Linux Mint 20 "Ulyana" - Release amd64 20200624
IwConfig:
lo no wireless extensions.
enp6s0 no wireless extensions.
MachineType: System manufacturer System Product Name
PackageArchitecture: all
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-43-generic root=UUID=a4b18dd9-4989-4bf5-8107-e55b8f8f6df4 ro amd_iommu=on iommu=pt quiet loglevel=3 splash
ProcVersionSignature: Ubuntu 5.15.0-43.46-generic 5.15.39
RelatedPackageVersions:
linux-restricted-modules-5.15.0-43-generic N/A
linux-backports-modules-5.15.0-43-generic N/A
linux-firmware 20220329.git681281e4-0ubuntu3.3
RfKill:
Tags: vanessa third-party-packages
Uname: Linux 5.15.0-43-generic x86_64
UnreportableReason: This does not seem to be an official Linux package. Please retry after updating the indexes of available packages. If that does not work, then remove related third party packages and try again.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 07/25/2022
dmi.bios.release: 5.17
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4901
dmi.board.asset.tag: Default string
dmi.board.name: ROG STRIX B450-F GAMING
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4901:bd07/25/2022:br5.17:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnROGSTRIXB450-FGAMING:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:skuSKU:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
Please run:
$ apport-collect 1984004