Laptop screen unusable after upgrade to kernel 6.6.x.fc39.x86_64

I’ve searched the forum and found similar, but not the same issue as I’ve recently run into. So, wanted to see if someone here has some thoughts or ideas.

After upgrading to kernel 6.6.x my built-in laptop (detachable) screen has essentially stopped working. I can see the Gnome login screen, but with huge vertical bands with “scrambled colors” up and down the screen. Once logged in, the issue becomes worse and the entire screen gets covered in the scrambled colors.

If I reboot the computer and log in using the 6.5.x kernel, it works fine again. I’ve tried three different 6.6 kernels and they all have the same issue.

Here’s some output from inxi -F if it helps:

  Type: Detachable System: LENOVO product: 82TQ v: IdeaPad Duet 5 12IAU7
    serial: <superuser required>
  Mobo: LENOVO model: LNVNB161216 v: SDK0T76465 WIN
    serial: <superuser required> UEFI: LENOVO v: JXCN39WW(V1.13)
    date: 10/06/2022
  ID-1: BATX charge: 43.9 Wh (87.5%) condition: 50.2/50.0 Wh (100.3%)
  Info: 6-core (2-mt/4-st) model: 12th Gen Intel Core i3-1215U bits: 64
    type: MST AMCP cache: L2: 4.5 MiB
  Speed (MHz): avg: 559 min/max: 400/4400:3300 cores: 1: 685 2: 400 3: 600
    4: 400 5: 400 6: 577 7: 400 8: 1012
  Device-1: Intel Alder Lake-UP3 GT1 [UHD Graphics] driver: i915 v: kernel
  Display: wayland server: X.Org v: 23.2.3 with: Xwayland v: 23.2.3
    compositor: gnome-shell driver: X: loaded: modesetting unloaded: fbdev,vesa
    dri: iris gpu: i915 resolution: 2560x1600~60Hz
  API: OpenGL v: 4.6 vendor: intel mesa v: 23.3.1 renderer: Mesa Intel
    Graphics (ADL GT2)
  API: EGL Message: EGL data requires eglinfo. Check --recommends.

For the time being I’ve increased the number of kernels my system will keep, but it seems like a band-aid solution.

Thanks in advance for any tips or recommendations.

At the risk of being called out for “bumping” this thread, I’m hoping I can maybe show how the issue I’m experiencing is a bit of a showstopper. I’m fairly new to Fedora and coming from other distros, I’ve never seen this kind of “major” usability issue before.

Now, many new kernels later since my original post and this issue still stubbornly persists. I’ve attached a photo of what it looks like. Maybe it will better illuminate the problem and better explain how it manifests itself, and perhaps trigger someone who has seen this before, or at least something similar. Maybe it’s not a kernel bug? My conclusion that it is is based on the fact that this only happens with 6.6 kernels.

My only recourse at this time is to keep an old 6.5 kernel and boot into it.

Is there a better place than here to report this bug? Fedora’s Bugzilla? Upstream kernel team?

Any suggestions would be highly appreciated. Thanks.

Hi! I have the very same issue on Arch Linux distro. I’ve filled a issue right now:

Thanks @martinspinler for the input and confirmation that I’m not the only one with this issue. Seems like you’ve identified a better place to report this. :pray:

The Intel issue was closed, now you have to wait for the new kernel version which merges this patch:

Thanks for the update. Just ran an update on my system and got a new kernel, but unfortunately that new kernel didn’t have the reverted code. Maybe in the next one … :smiley:

Just in case anyone else runs into this problem, it ended up being resolved with kernel 6.7.x thanks to reverting some changes introduced in 6.6.