this needs to be fixed in jammy/5.15 too, unless it's ok to regress when going to hwe-5.15
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.14 in Ubuntu. https://bugs.launchpad.net/bugs/1952041 Title: Fix i915 TypeC disconnect problems for Intel ADL-P Status in HWE Next: New Status in linux package in Ubuntu: Incomplete Status in linux-oem-5.14 package in Ubuntu: New Status in linux source package in Focal: Incomplete Status in linux-oem-5.14 source package in Focal: In Progress Bug description: [SRU Justification] [Impact] When the ADL-P system connects the external display via TypeC port, it will hang after unplugging the TypeC connector. The system will never come back until reboot. [Fix] Intel has released a patch set to fix the TypeC PHY connect/disconnect logic. The shift for ownership of PHY and power domain will be handled correctly for ADL-P. [Test] The ADL-P system will no longer freeze and the ownership will shift correctly after disconnecting the external display connects via TypeC port. [Where problem could occur] It's kind of a big refactor for the i915 TypeC PHY handling logic. Don't know if there's any problems on older platforms. Targeting only on Unstable and latest OEM kernel for lower risk. ================== Original Bug Description ====================== [Summary] The system will hang on after unplug DA310 with external monitor (on-demand) Note: 1. Build-in HDMI port cannot duplicate. 2. VGA/HDMI/DP on DA310 to system all can duplicate. 3. Unplug VGA/DP/HDMI from DA310, then unplug DA310 from the system cannot duplicate. [Steps to reproduce] 1. Install dell-bto-focal-fossa-pypar-adl-X160-20210923-2.iso 2. Plug DA310 to USB-C port 3. Plug DP/VGA/HDMI to DA310 4. Unplug DA310 > The system hangs on with black screen [Expected result] The system works well after unplug USB-C with external monitor [Actual result] The system hangs on blackscreen after unplug DA310 with external monitor [Failure rate] 3/3 [Additional information] SKU: SIF-MLK-DVT1-C1, SIF-MLK-DVT1-C5, SIF-MLK-DVT1-C6 Image: canonical-oem-somerville-focal-amd64-20200502-85+fossa-pypar-adl+X160 system-manufacturer: Dell Inc. system-product-name: Dell G15 5520 bios-version: 0.2.9 CPU: Genuine Intel(R) 0000 (12x) GPU: 0000:00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:46a3] 0000:01:00.0 VGA compatible controller [0300]: NVIDIA Corporation Device [10de:25e2] (rev a1) kernel-version: 5.14.0-9002-oem To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1952041/+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
