I test the test kernel built by Koba, https://drive.google.com/drive/folders/10ns_2dnmPRf091L3LABpIh680kStvTk4?usp=sharing
sku: FPA-DVT2-C6 BIOS: 0.0.26 It still have the error in kernel, but the screen can show successfully. I tried pure 5.14.0-1011-oem, the issue is still reproduced. Therefore, I think the patch set indeed fix something, but it won't get rid off "kernel: i915 0000:00:02.0: [drm] *ERROR* CPU pipe A FIFO underrun: soft,transcoder," however, my local build drmtip [1] can eliminate the error message. [1] https://drive.google.com/drive/folders/1nS8Vm1SFLCvPPQJiQdFzthsia_FG6yFC?usp=sharing @koba Would you please check if it includes all required patch? Currently, we have some problem on other platform STRADL-DVT2-C4/C5B, it will cause it failed to suspend/resume. -- 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/1954728 Title: Fix No Screen after login to Desktop on sku with 3840x2400 panel Status in HWE Next: New Status in OEM Priority Project: In Progress Status in linux package in Ubuntu: In Progress Status in linux-oem-5.14 package in Ubuntu: New Status in linux source package in Focal: New Status in linux-oem-5.14 source package in Focal: In Progress Status in linux source package in Jammy: In Progress Status in linux-oem-5.14 source package in Jammy: New Bug description: [Impact] Got kernel report CPU pipe A FIFO underrun: soft,transcoder kernel: i915 0000:00:02.0: [drm] *ERROR* CPU pipe A FIFO underrun: soft,transcoder, [Fix] Fix has been landed on linux-next, 4fe7907f3775(drm/i915/display/adlp: Disable underrun recovery). Defeature the underrun feature for intel display gen13+. [Test Case] 1. change resolution to 3840x2400 2. monitor works well and doesn't black out. [Where problems could occur] low To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1954728/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
