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While working with my DELL XPS 13 laptop (shipped with Ubuntu), sometimes colored horizontal lines appear (I cannot recreate the beahvior, it seems random). I tried attaching an external monitor to see if the behavior pesists on the other monitor: nevertheless, it seems these lines don't appear anymore even on my laptop when an external monitor is attached.

Any hint? See photo.

EDIT: my info PC model: Dell XPS 13 9320 OS: Ubuntu 22.04 Processor: 12th Gen Intel Core i7 1260Px16 RAM: 32 GB Graphic: MESA Intel Graphics (ADL GT2)

EDIT: don't put attention on the info you see in the photo: they concern another post I was looking at, not my computer. I could take the photo in that moment as the issue suddenly appeared.

EDIT: I formatted the laptop downgrading to Ubuntu 20 and it worked fine for one day, until updating it. Then, the problem came back. Lowering the resolution helps a bit but does not solve the issue. All built-in DELL diagnostic tests give no problems.

enter image description here

CuriousGuy
  • 262

3 Answers3

14

Update: I managed to get my ticket escalated with Dell technical support and the next tier has been quite helpful. They say Dell engineering has opened a ticket with Canonical and they are working on a fix. In the meantime, they suggested adding the parameter i915.enable_psr=0 to the GRUB_CMDLINE_LINUX_DEFAULT string in /etc/default/grub, so (at least on my machine), the relevant line becomes

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.enable_psr=0"

I made this change, ran sudo update-grub, rebooted into the 5.19 kernel, and I don't have the video artifacts anymore.

tcquinn
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3

I have the exact same problem. The horizontal line appear when I move my cursor slowly at the height where the lines appear. I haven't tried it with an external mouse and/or on a external monitor. I found an article that suggest to check the resolution and refresh rate. The technical specification mention a resolution of 1920 x 1200 and a refresh rate of 60 Hz. I have no idea how the change the refresh rate, but when I changed the resolution I found out that for a resolution of 1680 x 1050, the lines did not show up at the same spot and not as often. They do still appear, but it is less obnoxious.

I know it is not a good solution, but you can try to change the resolution.

EDIT: I followed the advice from @guiverc and downgrade to 5.15.0-60-generic using the instructions given in here. This gets rid of the lines

Pieter Vermeulen
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-3

This is most likely a hardware issue. Since the laptop is still very new, I would recommend seeking a warranty repair through Dell.

QwertyChouskie
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