Hi @koba, After checking for a couple of hours, plugging and unplugging both power, hub, and USBs/HDMI in the hub, it seems to all work perfectly with that 0-21 version of the Kernel!!!
What would be the next steps? Would the fix be pushed to the latest kernel update soon? Thank you for your help! Best -- 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/1878544 Title: kernel NULL pointer dereference when plugging/unpluggin USB-c (power or hub) Status in linux package in Ubuntu: Confirmed Bug description: Asus Zenbook Flip S (UX-370UAR). Intel Core i7-8550U CPU). The X freezes and doesnt even allow to start a console session. Only happening on Ubuntu 18.04 and 20.04. Does not happen in the same computer under Ubuntu 16.04 or Windows 10. Can be replicated easily. Every time I plug/unplug the power USB-C or the USB-c hub. Mostly, on any interaction with the USB-c or I/O ports. If I plug/unplug the USB-c without X in a console session (CTRL+ALT+F3) I get the following: BUG: kernel NULL point dereference, address: 0000000000000080 ... Workqueue: events ucsi_connector_change [typec_usci] RIP: 0010:ucsi_displayport_remove_partner+0xe/0x30 [typec_usci] ... Find a picture of the full error attached ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-29-generic 5.4.0-29.33 ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30 Uname: Linux 5.4.0-29-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: vks20 1808 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Wed May 13 23:46:49 2020 InstallationDate: Installed on 2020-05-14 (0 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) MachineType: ASUSTeK COMPUTER INC. UX370UAR ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-29-generic root=UUID=acc6d87c-574b-4c1e-8e8f-e75c1e9ff1fc ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-29-generic N/A linux-backports-modules-5.4.0-29-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/15/2019 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: UX370UAR.311 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: UX370UAR dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 31 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX370UAR.311:bd10/15/2019:svnASUSTeKCOMPUTERINC.:pnUX370UAR:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX370UAR:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct31:cvr1.0: dmi.product.family: ZenBook Flip dmi.product.name: UX370UAR dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1878544/+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
