5920 screen half black half white with lines

Hi all,

I think my 5920G has overheated - whenever I turn it on, the screen seems to be split in two (a white section, and a black section), and vertical lines start appearing, as well as some odd clouding from the sides.

Has anyone encountered this problem?

Thanks.

 

That's the Bumpgate problem - your MXM card has failed, you will need to buy a new one.

In the meantime, you may be able to temporarily get the card back to life by heating it in an oven (or using a hot-air gun) @ 200°C, to reflow the "bumps" connecting the silicon die to the chip substrate. Google "gpu oven fix" for details.

 

i think you have to change your laptop screen

 

@bisnisfb: Nope, screen split along a vertical line into a bright (left) and dark (right) half, with thin stripes in both halves is the response AU Optronics panels give to an undecodable LVDS signal. Usually, this is due to Bumpgate (the "bump" carrying the DDC signal cracks, causing the card to emit an incorrectly-clocked LVDS signal - this is much more easy to diagnose with a Chi Mei panel, which handles misclocked signals better).

Other reasons could be a faulty display cable, or a dirty MXM socket. But so far, all cases I've seen were Bumpgate.

@qwertymz: Have you replaced the MXM card and/or the LCD recently? If so, that could be another reason (incompatible card).

 

No - not replaced anything, everything's as was when I bought my laptop in 2008. Bit wary of replacing it though, as I can only find it for £80! Is there no way of taking it out and getting it to bypass using it... somehow?

 

You can't bypass it - the 5920G has a PM965 chipset, which relies on a discrete GPU (the MXM card in this case) to display any image. The 5920 IGP model uses the GM965 GMCH, but has no MXM slot.

However, note that you do not need to buy the exact same card - there may be cheaper models out there.

 

Ah, thanks.

I'm going to pester you now - which models would be compatible with the 5920G on the cheap side? And where do I look; eBay has nothing (but then again, it might be my search terms that are wrong).

 

@qwertymz:

I had black screen on boot problem for my 5920G twice. Fixed this problem by baking the GPU board in oven.( at 200 deg. for 10 mins)

 

I'll try baking then, and see what happens.

 

OMG - the baking worked! How long can I expect this to last before the card dies again? Can anyone rec. places to get cards for, and/or a list of cheap/good cards?

Thanks.

 

I have the same problem.
I tried an advise I found:
Unplug the power, remove the battery and then hold the power button for 30 to 60 seconds. Then reattach the power and attempt a boot. It worked for me! Just shutdown, put the battery back in.

And this worked for me, but after 2 days the problem came back and now it do not work to do this.
Any suggestions?
Thanks.

 

The bake trick hardly lasts a month. If your PC runs 24 / 7 then it will be lesser. I have baked mine almost 4 - 5 times

( ~1 month for me is just using PC without any Gaming activity).

 

Actually, I've seen bakes working for years - on cards that failed after several years of use (Bumpgate-affected GeForce 9-series cards). The problem is that the GeForce 8 series is so badly affected by Bumpgate that it can fail in mere months.