A Way to detect GPU failure ?

Hi ! Well, I have a LG S510 (and I must say I'm VERY happy with this notebook), with P8600 2,4 Ghz C2D, 2 Gb DDR3 1066 Mhz , and a Geforce 9600M GT GDDR3. I have it for about 7 months now and it never let me down.. but last week somthing happened..

I was at my university and I put it to hibernate in Ubuntu. Then I put it in my wallet and got home (about 15 minutes). But when I come home, it didn't hibernate ! <o> It was like hell inside the wallet.. I became desesperated.. I rebooted it and apparently it was normal.. 3 dya ago I noticed some strange things.. first, there are times that it boots 2x or 3x times before entering Grub... second, when I was using ubuntu with that animated desktop (with that special effects), one time it froze for a minute and then, the animated desktop was disabled and the screen became all glitchy. That was all, and just one time.

I'm suspecting that the GPU may become defective.. I ran today a memtest86 and 3Dmark 06 and it all went smooth (5740 3D mark points I think). Is there a way to detect such a thing ? Or other tests in other parts of the notebook (like CPU) ? Can 3D Mark detect if a GPU is defective ? Thanks, and sorry for the big story

 

maybe it is defective, but do you have another OS to test it on? somtimes Ubuntu can be glitchy

 

check your max temps by using hwmonitor

 

Thanks for the fast replys ! Well, I use Win XP too, but I don't know how to really test on it. The only test I read in internet was 3D Mark 06, but I don't know how he tests it =p I just ran it and it ended well.

I always check my Gpu temps ! I think I use Gpu-Z. It's normal as always (50 celsius Idle, and 90 celsius with heavy gaming).

 

That actually sounds more like a driver issue on Ubuntu.

 

Try leaving the laptop running for a while under XP, keep using games and such. If the hardware is going bad (maybe related to the Nvidia "bad bumps" fiasco?) it will be most apparent with wide temperature swings, so leave 3DMark running for a couple hours, and then turn it off, and so on. If you can't get the screen to corrupt in Windows as well as in Ubuntu, I'd agree with Dire NTropy and think that it's a misconfiguration or kernel flake out of the drivers or something in Ubuntu. I know I've had a few issues with 9.04, it won't assign an IRQ to my sound card in my media center, and it's looking like it's a bug in the kernel.

 

Hmm 90 is quite hot for a GPU at max though, but if its at 50 idle then it should be ok, i agree with pitabred, try xp for a bit, one thing you can do to test the GPU on xp is download Ozone3d FURMARK, put at native res on stability test, it should also give GPU temps as it runs.

Also try run a free app called, HD Tune, rune all the tests on that to see if its hard drive related.

 

Cataclysm, Pitabred, all of you people, thanks for the replys ! I will test all those programs right now !

 

Try ATiTool's artifact test at stock clocks.

 

Agreed. The simplest test so far.