E15 575G Screen Upgrade Problem

Karreb94
Karreb94 Member Posts: 13

Tinkerer
edited August 2023 in 2018 Archives
Hi, 
My laptop is an Acer E5-575G 55GR which comes with a 1366x768 TN display, model LP156WHU (TP)(F1).
I wanted to upgrade to a FHD screen, so I purchased a BOE NV156FHM-N41, instead of the NV156FHM-N42 suggested in some posts.

I mounted the new screen, the image is really good, also the viewing angles are really better than the original panel.
I have no problems with the brightness regulation.

But I have a problem: randomly some horizontal bands lighter than the image appears and disapears like flashes.
I link a video in which you can see the problem: https://www.youtube.com/watch?v=oTLlwq-qHjs
The EDP cable was perfectly connected with the panel.

The screen works pretty well, but have this issue. I tried to connect the laptop to an external monitor, in order to exclude a problem of the gpu: it works perfectly.

I tried to reinstall the original screen, and works perfectly.
The vendor said maybe is a problem of the cable. He assured that the N41 model is the same as the N42, no differences.

Do you think is a problem of the new screen, of the cable, is an incompatibility with my machine or something else?

Thank you.

Best Answer

«1

Answers

  • JackE
    JackE ACE Posts: 45,192 Trailblazer
    Replacement video ribbon cables are cheap. Give it a try. These ribbons often have intermittent conductor trace failures in the hinge area due to opening and closing the lid too much. If it still gives you problems, the issue seems more due to the new screen not your system. Jack E/NJ

    Jack E/NJ

  • Karreb94
    Karreb94 Member Posts: 13

    Tinkerer
    JackE said:
    Replacement video ribbon cables are cheap. Give it a try. These ribbons often have intermittent conductor trace failures in the hinge area due to opening and closing the lid too much. If it still gives you problems, the issue seems more due to the new screen not your system. Jack E/NJ
    Thank you for your answer.
    The ribbon cable is the EDP cable, the one that connect the panel with the motherboard?
  • JackE
    JackE ACE Posts: 45,192 Trailblazer
    Yes. Jack E/NJ

    https://www.newegg.com/Product/Product.aspx?Item=9SIA3AN64D2098&ignorebbr=1&nm_mc=KNC-GoogleMKP-PC&cm_mmc=KNC-GoogleMKP-PC-_-pla-_-Accessories+-+Notebooks/Tablet+PCs-_-9SIA3AN64D2098&gclid=EAIaIQobChMI1tr02tu-2AIVgYuzCh1WzAUSEAQYAyABEgL91PD_BwE&gclsrc=aw.ds

    Jack E/NJ

  • Karreb94
    Karreb94 Member Posts: 13

    Tinkerer
    If the cause is the cable damaged, should not the problem occour also on the original screen? 
  • ven98
    ven98 ACE Posts: 4,073 Pathfinder
    If the screen shows an image and it has no issues whatsoever, then it isn't a compatibilty issue. If it was a compatibilty issue, the screen wouldn't work at all. It can't be the cable as well, because the issue is not present in the original display. The last thing left is the screen itself.
    Always post the following characterisitcs of the device:
    -Model number
    -Part number(not required, but helpful)
    -CPU
    -GPU
    -Operating system

    Helios 300 and Nitro 5 users DO NOT update the BIOS to version 1.22 if you don't want the keyboard's backlight to turn off after 30 seconds even when the device is plugged in.


    Hit 'Like' if you find the answer helpful!   
    Click on 'Yes' if the comment answers your question!

  • JackE
    JackE ACE Posts: 45,192 Trailblazer
    >>>If the cause is the cable damaged, should not the problem occour also on the original screen? >>>

    Yes probably. But the issue was intermittent. So it's possible, though not likely, that you just lucked out when putting the old screen back in and the old screen worked OK. But for less than $12 for a new cable, you would have even more convincing evidence to the vendor that the new screen is faulty and to blame. Jack E/NJ

    Jack E/NJ

  • Karreb94
    Karreb94 Member Posts: 13

    Tinkerer
    yes, I confirm that the original screen works without problems.
    I thought about a problem of incompatibility because maybe the power required for the BOE model is higher and the computer maybe can't give enough power.
    But the problem happens at maximum level of brightness as well as at minimum level. 
  • brummyfan2
    brummyfan2 ACE Posts: 28,686 Trailblazer
    edited January 2018
    Karreb94 said:
    yes, I confirm that the original screen works without problems.
    I thought about a problem of incompatibility because maybe the power required for the BOE model is higher and the computer maybe can't give enough power.
    But the problem happens at maximum level of brightness as well as at minimum level. 

    Hi,
    Have you tried a different display driver? If not give it a shot, go to Device manager, uninstall the display driver, reboot and let Windows install the driver.
    EDIT:
    There's not much difference between the screens except the brightness, so it could be a faulty screen as @JacckE suggested.
    http://www.panelook.com/modelcompare.php?ids=25578,26390

    Acer Predator PT516-51s Performance Results - UserBenchmark

  • Karreb94
    Karreb94 Member Posts: 13

    Tinkerer
    JackE said:
    >>>If the cause is the cable damaged, should not the problem occour also on the original screen? >>>

    Yes probably. But the issue was intermittent. So it's possible, though not likely, that you just lucked out when putting the old screen back in and the old screen worked OK. But for less than $12 for a new cable, you would have even more convincing evidence to the vendor that the new screen is faulty and to blame. Jack E/NJ

    I tried 3 times to plug and unplug the screen, and putting it in place, and also gently moving the cable while the screen was turned on, in order to see if something changed, but nothing. Finally plugging in the old screen, everything worked perfectly, also moving the cable.
    I'm from Italy, and the cable replacements I can find cost almost the double or more on ebay and are difficult to find for my model.
    I can only tell you the code of my cable: DD0ZAALC011 REV:3A
    if you know a store that delivers to italy.
  • JackE
    JackE ACE Posts: 45,192 Trailblazer
    OK, forget replacing the cable right now. Did you try brummfan2's suggestion of uninstalling the driver from Device Mgr and then rebooting to let Win10 automatically detect and install the driver? Jack E/NJ

    Jack E/NJ

  • Karreb94
    Karreb94 Member Posts: 13

    Tinkerer
    >>> Have you tried a different display driver? If not give it a shot, go to Device manager, uninstall the display driver, reboot and let Windows install the driver. >>>

    Yes, I tried that, uninstalling the driver of the Monitor, then I restarted Windows, and the monitor was successfully recognized     (as Generic Plug & Play), but the problem persisted. I tried also to downgrade the Intel graphics driver, and tried to re-update them, but the intermittent issue persisted, and also is occourred in the BIOS screen. So I thought it wasn't a problem of drivers.
  • JackE
    JackE ACE Posts: 45,192 Trailblazer
    If the old screen still works OK then the new screen is either faulty or not the same as your vendor claimed. Accordingly, you should return the screen to the vendor for a refund or a replacement if the vendor still insists the old and new screens are interchangeable for the E5-575G-55GR. Jack E/NJ

    Jack E/NJ

  • brummyfan2
    brummyfan2 ACE Posts: 28,686 Trailblazer
    edited January 2018
    Karreb94 said:
    >>> Have you tried a different display driver? If not give it a shot, go to Device manager, uninstall the display driver, reboot and let Windows install the driver. >>>

    Yes, I tried that, uninstalling the driver of the Monitor, then I restarted Windows, and the monitor was successfully recognized     (as Generic Plug & Play), but the problem persisted. I tried also to downgrade the Intel graphics driver, and tried to re-update them, but the intermittent issue persisted, and also is occourred in the BIOS screen. So I thought it wasn't a problem of drivers.

    Hi,
    You have reinstalled the wrong driver, you need to uninstall "Display Adapter" driver.

    Acer Predator PT516-51s Performance Results - UserBenchmark

  • JackE
    JackE ACE Posts: 45,192 Trailblazer
    Good catch, brummyfan2! Jack E/NJ

    Jack E/NJ

  • Karreb94
    Karreb94 Member Posts: 13

    Tinkerer

    Just now I did what you suggested. I uninstalled the Display adapter Intel HD Graphics 620 driver, then I rebooted windows, automatically after few seconds it has installed the driver, but the problem still exist. 


  • brummyfan2
    brummyfan2 ACE Posts: 28,686 Trailblazer
    JackE said:
    Good catch, brummyfan2! Jack E/NJ
    Thanks JackE :)

    Acer Predator PT516-51s Performance Results - UserBenchmark

  • brummyfan2
    brummyfan2 ACE Posts: 28,686 Trailblazer
    Answer ✓
    Karreb94 said:

    Just now I did what you suggested. I uninstalled the Display adapter Intel HD Graphics 620 driver, then I rebooted windows, automatically after few seconds it has installed the driver, but the problem still exist. 
    Then I suspect the screen is faulty.

    Acer Predator PT516-51s Performance Results - UserBenchmark

  • Karreb94
    Karreb94 Member Posts: 13

    Tinkerer
    Thank you for your help.  :)
    I will send back the panel and will tell you the feedback from the vendor after the test.

  • brummyfan2
    brummyfan2 ACE Posts: 28,686 Trailblazer
    Karreb94 said:
    Thank you for your help.  :)
    I will send back the panel and will tell you the feedback from the vendor after the test.


    You are welcome :)

    Acer Predator PT516-51s Performance Results - UserBenchmark

  • Karreb94
    Karreb94 Member Posts: 13

    Tinkerer
    I received from the vendor a new NV156FHM-N41 panel, the problem seems to be lower than before, but still is present. 

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