Public bug reported:
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.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug impish wayland-session
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https://bugs.launchpad.net/bugs/1950062
Title:
Unable to access CPU i2c interfaces with AMD "Cezanne" CPU's
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