Public bug reported:
I have an argon one V5 case fitted with an industra oled display
connected to the Raspberry Pi 5 i2c bus. This displays various system
information using various python scripts provided by Argon One, and is
working fine on Ubuntu 24.04, 25.10 and Raspberry Pi OS. However on
Ubuntu 26.04 it displays no information on the display and the following
error is in syslog:-
2026-07-31T14:48:34.076339+01:00 thirlmere kernel: i2c_designware
1f00074000.i2c: i2c_dw_handle_tx_abort: SDA stuck at low
2026-07-31T14:48:34.078711+01:00 thirlmere python3[2851]: Unable to initialize
OLED
As the hardware is working fine on other versions of Ubuntu and
Raspberry Pi OS I can only assume it must be a bug introduced in to the
i2c driver on Ubuntu 26.04
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-1015-raspi 7.0.0-1015.15
ProcVersionSignature: Ubuntu 7.0.0-1015.15-raspi 7.0.12
Uname: Linux 7.0.0-1015-raspi aarch64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: arm64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: springle 3004 F.... wireplumber
/dev/snd/controlC3: springle 3004 F.... wireplumber
/dev/snd/controlC1: springle 3004 F.... wireplumber
/dev/snd/seq: springle 2998 F.... pipewire
CasperMD5CheckResult: unknown
CloudArchitecture: aarch64
CloudID: nocloud
CloudName: unknown
CloudPlatform: nocloud
CloudSubPlatform: config-disk (/dev/sda1)
CurrentDesktop: ubuntu:GNOME
Date: Fri Jul 31 15:25:33 2026
ImageMediaBuild: 20260423
IwDevWlan0Link: Not connected.
Lspci-vt:
-[0001:00]---00.0-[01-04]----00.0-[02-04]--+-03.0-[03]----00.0 Micron
Technology Inc 2550 NVMe SSD (DRAM-less)
\-07.0-[04]----00.0 Micron/Crucial
Technology P3 Plus NVMe PCIe SSD (DRAM-less)
-[0002:00]---00.0-[01]----00.0 Raspberry Pi Ltd RP1 PCIe 2.0 South Bridge
ProcFB: 0 vc4drmfb
ProcKernelCmdLine: reboot=w coherent_pool=1M 8250.nr_uarts=1 pci=pcie_bus_safe
numa_policy=interleave nvme.max_host_mem_size_mb=0 numa=fake=8
system_heap.max_order=0 iommu_dma_numa_policy=interleave
smsc95xx.macaddr=2C:CF:67:7E:B5:72 vc_mem.mem_base=0x3fc00000
vc_mem.mem_size=0x40000000 zswap.enabled=1 zswap.compressor=zstd multipath=off
dwc_otg.lpm_enable=0 console=tty1 root=/dev/sda2 rootfstype=ext4 panic=10
rootwait fixrtc quiet splash
SourcePackage: linux-raspi
UpgradeStatus: No upgrade log present (probably fresh install)
acpidump:
** Affects: linux-raspi (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug arm64 arm64-image raspi-image resolute wayland-session
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https://bugs.launchpad.net/bugs/2162573
Title:
i2c_designware driver returning sda stuck low error
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