Backlight on while laptop is powered on

dzik
dzik Member Posts: 1 New User
Hello
I found something strange. While my laptop is off (with connected HDMI cable) and I'll power on it, the backlight of laptop's display is on. When I will disconnect and connect again HDMI, the backlight will switch off itself.
When laptop is in sleep mode, above problem does not appear.

Answers

  • William_mk2
    William_mk2 ACE Posts: 4,198 Pathfinder
    dzik

    How long you are facing this issue?    Did you tried to use a different hdmi cable and check it ?

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  • Easwar
    Easwar Member Posts: 6,727 Guru
    Hi dzik,

    # Try to update the keyboard driver

    1. Hold windows key and hit letter X.
    2. Choose the device manager option.
    3. Go with the option keyboard driver.
    4. Under the title keyboard driver.
    ​​
    5. Right click on that option ----> Update all driver under the title keyboard  driver.
    6. Choose "search automatically". 

    Check this T/S and post the result. ​
  • sri369
    sri369 ACE Posts: 2,855 Pathfinder
    dzik said:
    Hello
    I found something strange. While my laptop is off (with connected HDMI cable) and I'll power on it, the backlight of laptop's display is on. When I will disconnect and connect again HDMI, the backlight will switch off itself.
    When laptop is in sleep mode, above problem does not appear.
    Did you try setting the output to external display only when connected to hdmi?
    -----
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  • Easwar
    Easwar Member Posts: 6,727 Guru
    Hi dzik,

    May I know the full model name of your unit.