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FydeOS / chromium_os-raspberry_pi

Build your Chromium OS for Raspberry Pi 4B, Pi400 and the latest Raspberry Pi 5
https://chromiumos.io
BSD 2-Clause "Simplified" License
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Flickering on RPI 4b #53

Closed Meowcat285 closed 3 years ago

Meowcat285 commented 4 years ago

Describe the bug or issue A clear and concise description of what the bug is.

Describe your setup

Raspberry Pi 4B with 4 GB of RAM Chromium os r77 R2

To Reproduce Steps to reproduce the behavior:

  1. Start system
  2. Animations flicker

Expected behaviour Animations are smooth

Screenshots and/or hardware setup photos If applicable, add screenshots to help explain your problem. If your problem is hardware related, it's much easier to include a photo of how your setup looks like.

N/A Additional context Add any other context about the problem here.

N/A

fydeos-alpha commented 4 years ago

We are going to need a bit more information regarding your physical setup, did you use any HDMI converter? What kind of screen? A picture/video demonstrating the flicker would be ideal.

Meowcat285 commented 4 years ago

I am not using a converted, it is a LG 1080p display. I saw another issue regarding the same issue from a month or so ago

LucasFidelis commented 4 years ago

I have the same problem with a screen E230t HP without HDMI converter.

jwnola commented 4 years ago

I'm using the latest prebuilt image, and I'm having the same issues where the screen goes black randomly. I'm using a Raspberry Pi 4 and a Dell 27 running at 1920x1080 directly connected with a micro HDMI to HDMI cable. No converter.

Sewdn commented 4 years ago

I'm using the latest prebuilt image as well. Extreme flickering and noisy display on 4K resolution (using a Philips Brilliance 4K screen), without any adapter. Using a micro HDMI to HDMI cable (). Less flickering, but very frequent blackouts on a (old) LG FullHD screen 1920x1080.

Related to https://github.com/FydeOS/chromium_os-raspberry_pi/issues/84

th0mpy commented 4 years ago

Same here, using a HDMI cable directly to the RPi without an adapter. I get a lot of black/blank screens. The cursor is "corrupted" as well. RPi 4 8g model.

fydeos-alpha commented 3 years ago

flickering is now much improved in the r86r1 build, give it a try

a9udn9u commented 3 years ago

For people having the same problem, increase gpu mem solved the issue for me.

Follow this post to mount the boot partition, update config.txt, add gpu_mem=256, reboot.

128MB may also work but I didn't bother trying.

BTW, increase gpu mem also improved Night Light performance by a lot, but it's still laggy.

Bituvo commented 2 years ago

I'm having this issue with my Github Pages website, here Animations flicker and turn black.

This only happens on my Pi, nowhere else.