Member Avatar for bodlarakesh

I am using a HP laptop dv5-1104 tu. My lcd was broken so i got NEW LCD fixed a year ago.

Now for the past 3 days screen turns black after using it for a hour or so. Just the lcd is turning black. PC is not hung. To turn it back on i have to make the laptop go to sleep mode and wake it up. even after waking it up the screen turns black for every minute or two..

I hooked it with an external monitor and it works.

I changed the screensaver settings. turns out its nt screen saver problem.

Before the screen turns black the screen shows a very light buzz.. i mean very light flickering... we cant notice it unless we concentrate.

Please help me.

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Brief recap and focused next steps based on the thread: an HP dv5-1104tu had its LCD replaced about a year ago, now the internal screen flickers and goes black after ~1 hour while an external monitor continues to work; sleep/wake briefly restores the image. correctly flagged the loose DC jack and confirmed it feels loose and the battery won’t fully charge.

Why this points away from the OS/GPU and toward the display/power path: the external monitor showing a normal image means the GPU and drivers are almost certainly fine. The faint flicker followed by total blackout, plus temporary recovery on sleep/wake, is classic for an intermittent connection or a failing backlight/inverter/LED driver — thermal expansion or a flexing cable at the hinge can make the failure appear after the machine heats up. A loose DC jack can also cause unstable power that triggers sleep/power events, so both power inlet and the internal display wiring deserve attention.

Practical, safe troubleshooting steps (in priority order):

  1. Test on AC only with the battery removed to isolate the DC jack/charger.
  2. Temporarily set the OS power plan to “never sleep” when plugged in to rule out power-management sleep triggers.
  3. When the screen is black, shine a bright flashlight at the panel. If a very faint image is visible, the panel is receiving signal but the backlight/inverter/LED driver is failing. No faint image suggests an LVDS/eDP cable or panel signal fault.
  4. Power down, unplug and remove the battery, then carefully reseat the display ribbon at both the motherboard and the panel and inspect the cable along the hinge for kinks/frays.
  5. If reseating doesn’t fix it, replace the LVDS/eDP cable or inverter (for CCFL panels) or the panel/LED driver (for LED-lit panels).
  6. If all else fails, suspect the board’s display connector or intermittent motherboard fault and seek professional repair.

Safety and parts note: always work with power removed and use ESD precautions. DC jacks and display cables are inexpensive but use reputable parts—since the screen was replaced a year ago, a faulty replacement panel is possible. If not comfortable opening the laptop, a local repair shop can run these checks quickly and safely.

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Member Avatar for BigPaw

How old is this laptop, please?

Member Avatar for BigPaw

The power connecter that plugs into the laptop, does it feel loose? I'm suspecting that the connector inside the laptop has become loose over time and usage. Sometimes it will make a connection and sometimes it won't. So, when it connects, it partially (or sometimes fully) charges the battery. Then, because the connector is loose, it disconnects from the mains power and starts depending on the battery. Power management settings for the battery tell the operating system to make the laptop sleep when the battery's charge drops below a certain percentage. To you, it just looks like the screen has gone black. When you do what you do to wake up the laptop, it only has a small percentage of charge in the battery left, and then goes to sleep soon after again. To you, it looks like the screen has just gone black again.

Do a search for your model laptop an ebay and you will find a replacement power connector -they should only cost a couple of of pounds (GBP) or dollars. The next task is to find someone to fit it for you.

Do that initial check though, does the connecter feel loose?

Member Avatar for bodlarakesh

Yeah mate! it s loose for a very very long tym!!

so it shud be the problem.. coz battery s not charged to the fullest even if i keep it charging for hours..

i ll replace the connector and check.. thanks for ur help :)

Member Avatar for bodlarakesh

laptop is 4 yrs old

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