[Bug 2161388] Re: radeon kernel module fails with "Invalid command stream"

** Attachment removed: "dmesg_7.0.0-31.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2161388/+attachment/5997609/+files/dmesg_7.0.0-31.txt -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2161388 Title: radeon kernel module fails with "Invalid command stream" Status in linux package in Ubuntu: New Bug description: After the upgrade from 25.10 to 26.04, all recent kernel version have had this new failure in the dmesg output: radeon 0000:02:00.0: evergreen_cs_track_validate_cb:480 cb[0] bo too small (layer size 8847360, offset 0, max layer 1, bo size 4096, slice 34559) radeon 0000:02:00.0: evergreen_cs_track_validate_cb:485 problematic surf: (1920 1152) (4 4 1 1 2 1024 2) radeon 0000:02:00.0: evergreen_packet3_check:1950 invalid cmd stream 662 [drm:radeon_cs_ioctl [radeon]] *ERROR* Invalid command stream ! My kernel parameters include radeon.dpm=1 ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: linux-image-7.0.0-28-generic 7.0.0-28.28 ProcVersionSignature: Ubuntu 7.0.0-28.28-generic 7.0.12 Uname: Linux 7.0.0-28-generic x86_64 ApportVersion: 2.34.0-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ad 1756 F.... wireplumber /dev/snd/controlC1: ad 1756 F.... wireplumber /dev/snd/controlC2: ad 1756 F.... wireplumber /dev/snd/seq: ad 1752 F.... pipewire CasperMD5CheckResult: unknown CurrentDesktop: KDE Date: Mon Jul 20 23:02:45 2026 InstallationDate: Installed on 2025-07-25 (360 days ago) InstallationMedia: Kubuntu 25.04 "Plucky Puffin" - Release amd64 (20250417) MachineType: System manufacturer System Product Name ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-28-generic root=UUID=d0ba703d-8549-4bc4-b278-cf13189ad70a ro quiet radeon.dpm=1 acpi_enforce_resources=lax PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RfKill: SourcePackage: linux UpgradeStatus: Upgraded to resolute on 2026-06-25 (26 days ago) dmi.bios.date: 12/22/2010 dmi.bios.release: 8.15 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1202 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: P6T DELUXE V2 dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1202:bd12/22/2010:br8.15:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP6TDELUXEV2:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:skuToBeFilledByO.E.M.:pfaToBeFilledByO.E.M.: dmi.product.family: To Be Filled By O.E.M. dmi.product.name: System Product Name dmi.product.sku: To Be Filled By O.E.M. dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2161388/+subscriptions