r/FedoraLinux

I just got a new one (as in title T14s gen6 on AMD platform) with optional upgraded 2.8K OLED screen. Already regretting the choice of screen, should've kept it stock low resolution IPS, but now that I am here -- looking for any help to try and fix it.

The symptom: screen will periodically go into "seizure" where it flickers for a few seconds. Flickers as in the entire screen will go black for a fraction of a second then go back to normal.

I am on the most recent updates of Fedora 44, so fairly fresh amd-gpu-firmware and kernel (7.0.14).

What I've tried so far:

• fwupd -- some minor updates were done, but no change in screen behavior
• resetting bios settings and updating the bios -- no change
• downgrading amd-gpu-firmware and booting with the oldest available kernel (6.19) -- no change
• installing even older kernel from koji builds (f42 kernel, 6.16) -- this one had no flickering, but the wifi/bt is broken (the mt7925e chip is too new and supported version of mt7xxx-firmware does not work with 6.16 kernel)
• Also tried all the google'd options of amdgpu cmdline params -- no effect there, the flickering persists regardless

Any ideas what else I should try or what else I can do there? Any point in raising it to Lenovo support (the laptop comes with Windows only, it shows as Fedora 42 certified, but it is impossible for this revision due to the soldered on mediatek chip, not m.2 card)

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