[Bug 2171341] Re: amdgpu: brief display noise flashes with kernel 7.0.0-38, regression from 7.0.0-34

Hi, This sounds similar to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2169181 so try the test kernel available there. If that fixes the problem for you I'll mark this report as a duplicate. ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Ross Porter (rossporter506) -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2171341 Title: amdgpu: brief display noise flashes with kernel 7.0.0-38, regression from 7.0.0-34 Status in linux package in Ubuntu: New Bug description: Since updating to kernel 7.0.0-38-generic, the display shows brief flashes of noise (roughly 0.1 seconds or shorter). The issue is not present with kernel 7.0.0-34-generic. Regression confirmed by booting between the two kernels on identical hardware and configuration: 7.0.0-34 is clean, 7.0.0-38 exhibits the noise flashes. Hardware: Slimbook EVO 14 GPU: AMD Strix [Radeon 880M OS: Slimbook OS 26 (based on Ubuntu 26.04 LTS), stock Ubuntu kernel via linux-image-generic-hwe-26.04 track (7.0.0-38.38 from the standard Ubuntu archive) Happy to attach full dmesg/journalctl output from a 7.0.0-38 session; currently booted into 7.0.0-34 as a workaround. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2171341/+subscriptions