Since the workaround involves amd's iommu and kernel 5.5, we may be able to find a patch that fixes this by cherry-pikcy: git log --pretty=short v5.4..v5.5 -- drivers/iommu/amd_iommu.c
commit 1daa56bcfd8b329447e0c1b1e91c3925d08489b7 Merge: a5255bc31673 9b3a713feef8 Author: Linus Torvalds <[email protected]> Merge tag 'iommu-updates-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu commit 995e2ef08280dab8de6c517acd836613678fe2a3 Merge: 1fca7e0e6fe6 ae5e6c6439c3 cb0701acfa7e b5b42b24d783 2e127203d116 Author: Rafael J. Wysocki <[email protected]> Merge branches 'acpi-utils', 'acpi-platform', 'acpi-video' and 'acpi-doc' commit 9b3a713feef8db41d4bcccb3b97e86ee906690c8 Merge: 4e7120d79edb da6b05dce2a9 1289f7f15001 5b47748ecf2e c90ae4a63541 96d3ab802e49 34d1b0895dbd 3c124435e8dd 6c3a44ed3c55 c1c8058dfb98 808be0aae53a Author: Joerg Roedel <[email protected]> Merge branches 'iommu/fixes', 'arm/qcom', 'arm/renesas', 'arm/rockchip', 'arm/mediatek', 'arm/tegra', 'arm/smmu', 'x86/amd', 'x86/vt-d', 'virtio' and 'core' into next commit 3c124435e8dd516df4b2fc983f4415386fd6edae Author: Logan Gunthorpe <[email protected]> iommu/amd: Support multiple PCI DMA aliases in IRQ Remapping commit 3332364e4ebc0581d133a334645a20fd13b580f1 Author: Logan Gunthorpe <[email protected]> iommu/amd: Support multiple PCI DMA aliases in device table commit a5bbbf37c6f8522a1afd46c37b5a0d1ce63232b7 Author: Denys Vlasenko <[email protected]> iommu/amd: Do not re-fetch iommu->cmd_buf_tail commit 3057fb9377eb5e73386dd0d8804bf72bdd23e391 Author: Joerg Roedel <[email protected]> iommu/amd: Pass gfp flags to iommu_map_page() in amd_iommu_map() commit 470eb3b31134ada545dcb41e94a0c97b42c95803 Author: Suthikulpanit, Suravee <[email protected]> iommu/amd: Simpify decoding logic for INVALID_PPR_REQUEST event commit ae5e6c6439c3d0ac8e9c71523790ba1ff6887894 Author: Andy Shevchenko <[email protected]> iommu/amd: Switch to use acpi_dev_hid_uid_match() commit be62dbf554c5b50718a54a359372c148cd9975c7 Author: Tom Murphy <[email protected]> iommu/amd: Convert AMD iommu driver to the dma-iommu api commit 781ca2de89bae1b1d2c96df9ef33e9a324415995 Author: Tom Murphy <[email protected]> iommu: Add gfp parameter to iommu_ops::map commit 37ec8eb851c1876580a963f283fe7496592b9f72 Author: Tom Murphy <[email protected]> iommu/amd: Remove unnecessary locking from AMD iommu driver -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1887218 Title: Ryzen 5 3500U - laptop won't boot when on battery power To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1887218/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
