The Notebook Review forums were hosted by TechTarget, who shut down them down on January 31, 2022. This static read-only archive was pulled by NBR forum users between January 20 and January 31, 2022, in an effort to make sure that the valuable technical information that had been posted on the forums is preserved. For current discussions, many NBR forum users moved over to NotebookTalk.net after the shutdown.
Problems? See this thread at archive.org.

    T450s screen flicker issue

    Discussion in 'Lenovo' started by seiyafan, Jul 9, 2015.

  1. seiyafan

    seiyafan Notebook Evangelist

    Reputations:
    19
    Messages:
    326
    Likes Received:
    4
    Trophy Points:
    31
    Lately I have noticed the laptop screen flickers randomly. I have an external monitor hooked to it and that's behaving fine. Sometimes it would flicker a few times in a minute, sometimes it would be fine again for a couple of minutes straight.

    Here's a video:

    Here's another video in BIOS showing that it's not a windows driver issue:



    Any thoughts?
     
    Last edited: Jul 9, 2015
    seiyafan, Jul 9, 2015
    #1
  2. zenlinux

    zenlinux Notebook Enthusiast

    Reputations:
    0
    Messages:
    13
    Likes Received:
    8
    Trophy Points:
    6
    I've seen something like this too on my T450s with the HD+ (1600x900) display. It tends to happen when the screen resolution changes - for example, when logging out to the GDM login screen on Ubuntu. It doesn't happen very often, though. I recently ordered a FHD screen for my T450s and I'm going to try replacing it, and wonder if that may have any impact on this issue.
     
    zenlinux, Aug 29, 2015
    #2
  3. zenlinux

    zenlinux Notebook Enthusiast

    Reputations:
    0
    Messages:
    13
    Likes Received:
    8
    Trophy Points:
    6
    FWIW I'm still seeing the issue after replacing the original HD+ LCD screen with the FHD screen. I definitely see it most often after waking from suspend. Hoping it might be an issue that can be fixed in an upcoming BIOS update and isn't a hardware flaw.
     
    zenlinux, Sep 6, 2015
    #3