I am affected by this issue on my Ubuntu 20.04 system that is running kernel a 5.13 kernel. I have a ASUS rog stix b550-E gaming motherboard, an AMD 5600G CPU and use crucial ballistix ram.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.14 in Ubuntu. https://bugs.launchpad.net/bugs/1950062 Title: Unable to access CPU i2c interfaces with AMD "Cezanne" CPU's Status in amd: New Status in linux package in Ubuntu: Confirmed Status in linux-oem-5.14 package in Ubuntu: Invalid Status in linux source package in Focal: Invalid Status in linux-oem-5.14 source package in Focal: Confirmed Status in linux source package in Jammy: Confirmed Status in linux-oem-5.14 source package in Jammy: Invalid Status in Arch Linux: New Bug description: OpenRGB uses the CPU SMBus/i2c interfaces to talk to the motherboard RGB controller and the DRAM RGB controllers and after updating my system to a 5700G from a 2400G I see error messages in dmesg for each read and write attempt to the interfaces. If I swap the CPU back on the same install I am able to see and control the RGB interfaces. Another user on the OpenRGB discord with a 5600G is also seeing the same issues. ProblemType: Bug DistroRelease: Ubuntu 21.10 Package: linux-image-5.13.0-20-generic 5.13.0-20.20 ProcVersionSignature: Ubuntu 5.13.0-20.20-generic 5.13.14 Uname: Linux 5.13.0-20-generic x86_64 ApportVersion: 2.20.11-0ubuntu71 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: user 1654 F.... pulseaudio /dev/snd/pcmC1D0p: user 1654 F...m pulseaudio /dev/snd/controlC0: user 1654 F.... pulseaudio CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Sat Nov 6 16:36:17 2021 InstallationDate: Installed on 2021-09-18 (49 days ago) InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420) MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcEnviron: TERM=xterm-256color PATH=(custom, no username) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.0-20-generic root=UUID=dc2e65cb-a2e0-408c-a64b-bb0ccc6fdef0 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.13.0-20-generic N/A linux-backports-modules-5.13.0-20-generic N/A linux-firmware 1.201.1 SourcePackage: linux UpgradeStatus: Upgraded to impish on 2021-10-17 (20 days ago) dmi.bios.date: 08/11/2021 dmi.bios.release: 5.17 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P4.60 dmi.board.name: B450 Gaming-ITX/ac dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP4.60:bd08/11/2021:br5.17:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:skuToBeFilledByO.E.M.:rvnASRock:rnB450Gaming-ITX/ac:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To Be Filled By O.E.M. dmi.product.name: To Be Filled By O.E.M. dmi.product.sku: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/amd/+bug/1950062/+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
