A test kernel, based on UBUNTU: Ubuntu-5.4.0-42.46, is available @ https://people.canonical.com/~alexhung/LP1887218/ver1/
If this solves this bug, we can keep bisecting. If not, we can try other patches. The following commits are excluded: == merges == 1daa56bcfd8b329447e0c1b1e91c3925d08489b7 995e2ef08280dab8de6c517acd836613678fe2a3 9b3a713feef8db41d4bcccb3b97e86ee906690c8 == cannot clean picked == 3c124435e8dd516df4b2fc983f4415386fd6edae 3332364e4ebc0581d133a334645a20fd13b580f1 We can come back to these if the test kernel fails. == fail to compile == ae5e6c6439c3d0ac8e9c71523790ba1ff6887894 This requires additional patch(es) but this is to replace an existing function with acpi_dev_hid_uid_match and should not have any effects -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1887218 Title: Ryzen 5 3500U - laptop won't boot when on battery power Status in linux package in Ubuntu: Incomplete Bug description: Ryzen 5 3500U (release in 2019) won't boot when laptop is on battery power. It affects different brands of laptops. Laptop boots normally with charger in and you can unplug the charger and then use battery. For some a work around is possible on kernel 5.4. For others kernel should be 5.5 or better yet 5.6. issue described in more detail in Ubuntu forums: https://ubuntuforums.org/showthread.php?t=2446942 dmesg: https://paste.ubuntu.com/p/C2xNzpBKq5/ iommu=soft boot options provides the work arround on some laptops, while on others USB ports stop working. OS: Kubuntu 20.04 LTS CPU: Ryzen 5 3500U GPU: AMD Vega 8 RAM: 8 GB DDR4 2400 Mhz disk: 256 GB nvme I patched kernel (now tainted) to get driver for rtl8821ce (wi-fi). To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1887218/+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
