Why does my computer's display go black?

Acer / Acer aspire 7551g
March 28, 2011 at 08:55:42
Specs: Windows 7, AMD Phenom II X3 Mobile
I have an Acer Aspire 7551G-5056, and it has a AMD Phenom II X3 Mobile CPU, and the gfx card is a ATI Mobility Radeon HD 5650. For some reason, playing games like borderlands, LOTRO, and Mafia II causes the display to go black, or a random color, then black. Like it's going to sleep mode, but it can't be woken up. The only way to get out of this display problem is to manually shut down the computer and turn it back on, or let the battery die, both of which are very bad ideas for computers. The odd thing is, it can run these games in highest settings with no problems. (Meaning they go smoothly. It's not my graphics card getting hot, as i've purchased a cooling pad and that does nothing to help except greatly lower the temps. This makes me think the problem is that these games require a 4 core system, and this is a 3 core system.

Games it runs without display going out:

Batman Arkham Asylum (Highest settings)
All Source games
Lead and Gold
Hitman Blood Money
Rainbow Six Vegas 2

Those aren't all that it runs, but most of them.

Games it does not run:

Call of Juarez: Bound in Blood
Metro 2033
Mafia II
Lord of the Rings Online

Keep in mind, the games that makes the display go out still run smoothly and at a great frame rate. So I can't imagine what the problem is.

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March 28, 2011 at 10:10:39
Those games most definitely do not require a '4 core' system.

Have you monitored your internal temperatures with a software like HWmonitor? Just because the laptop feels cooler on the bottom doesn't translate to cooler components/core temperatures. Try that.

Have you installed all the latest drivers for your GPU?

Try running a stress test for a couple hours, like 3DMark06. If your display goes out, then it sounds like your graphics card is buggy.

No doubt in my mind, the display going black like that makes me believe this is a problem with your graphics card. A CPU failure will give you a blue screen of death, RAM failures will give error messages/page file losses, but when your display goes out- the usual cause is the display adapter (your graphics card). Especially since this is happening during games, and particular games at that.

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March 28, 2011 at 10:37:54
I actually have monitored the temps. 60 Degrees C for all the games I tested(Full Load), and 40 degrees celsius without any games running. (Idle) I tried video stress tests, and I have the same problem as if I was playing the games that don''t work. I tried CPUID for temp monitoring, and I used HWMonitor (i believe that's what it's called) for hardware testing. I decided not to do any more benchmarking as i have to manually shut down the computer every time i have a problem, and it's already resulting in the computer performing tasks slower. I have updated my drivers, and still no dice.

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March 28, 2011 at 14:31:59
What's your power supply and what's the amps on the 12v rail?

Iron Sharpens Iron.

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Related Solutions

March 28, 2011 at 14:58:02
Power Supply Model: Made by LITEON I guess. PA-1900-34 Input-100-240V~59-60Hz 1.5A
Output- 19V Not sure what you mean by the rail.

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March 28, 2011 at 17:32:33
It's a Laptop (you should have made that clear), here are some spec's:

You have to be a little bit crazy to keep you from going insane.

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March 28, 2011 at 18:47:12
I did say an Acer Aspire 7551G-5056. I thought it would be obvious. I see now that it wasn't, my apologies. Anyway, can anyone tell me what my problem is? I understand it must be with the graphics card. But how could I fix the problem? I sent it in to get repaired, all they did was update the Bios and get the dust out of it. This did not fix anything, frankly. So any other suggestions/ideas would be very much appreciated.

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