This regression was introduced by stable update. That means all 5.3/5.4 kernels are affected(including all linux distributions that comes with 5.3/5.4 kernel).
There are 2 ways to fix this issue 1. Find the bad commit in stable update and revert it 2. Find the fixed commit from v5.6 and backport it I was using the second method to fix this issue for v5.4 and not knowing this happens on v5.3, too. Backport those commits to v5.4 is fine, since v5.4 is not released yet and can accept big wifi changes. But those commits doesn't fit SRU rules, so that's why v5.3 doesn't get fixed.(Upstream should come out a stable update to fix this issue, since this impacts all distributions) v5.4 kernel is stable enough, please consider to upgrade to v5.4 if possible. Or stay at 18.04(v4.15) with backport-iwlwifi-dkms package. -- 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/1865962 Title: Dell XPS 13 9300 Intel 1650S wifi [34f0:1651] fails to load firmware Status in HWE Next: Fix Released Status in linux package in Ubuntu: Fix Released Status in linux source package in Focal: Fix Released Bug description: [Impact] It dumps some debug messages while loading iwlwifi firmware every time after booted up and finally got below errors [ 5.632845] iwlwifi 0000:00:14.3: Failed to start RT ucode: -110 [ 5.632849] iwlwifi 0000:00:14.3: Firmware not running - cannot dump error [ 5.645491] iwlwifi 0000:00:14.3: Failed to run INIT ucode: -110 [Fix] It looks like it fails to load the firmware since mainline v5.4 kernel, and got fixed at v5.6-rc1. After bisect the kernel, the first bad commit is b3bd6416fc77 iwlwifi: assume the driver_data is a trans_cfg, but allow full cfg To avoid conflicts, we have to backport the following commits from mainline kernel b81b7bd02eda iwlwifi: remove some outdated iwl22000 configurations c042f0c77f3d iwlwifi: allocate more receive buffers for HE devices 5661925a9b38 iwlwifi: pcie: rx: use rxq queue_size instead of constant bfc3e9fdbfb8 iwlwifi: 22000: fix some indentation 3681021fc6af iwlwifi: remove IWL_DEVICE_22560/IWL_DEVICE_FAMILY_22560 [Test] Verified on Dell XPS 9300 with Killer AX1650i wifi card and XPS 13 2-1 platform, wifi keeps working after reboot 10 times. [Regression Potential] Medium, the code changes a lot, although the test results are all positive, it's still hard to evaluate the regression potential. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1865962/+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
