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Graphics Malfunction

post #1 of 5
Thread Starter 
I have a Dell Studio XPS 1645 laptop.
(Basic configuration: Intel (first generation) Core i7-QM quad core processor @1.6 GHZ, turbo upto 2.8 GHZ, 4 GB RAM, ATI Mobility Radeon 4670 w/ 1GB DDR3)

One fine day, doing nothing particular, my screen went all crazy, with all sorts of lines on it, gave me a BSOD that was barely visible, and crashed. And crashed again and again for the next two dozen times on boot. Even the splash screen had those lines. I got some pictures to illustrate, have a look.



I later viewed the contents of the BSOD, didn't convey anything in particular.

==================================================
Dump File : 031513-50372-01.dmp
Crash Time : 15-03-2013 16:49:12
Bug Check String :
Bug Check Code : 0x00000116
Parameter 1 : fffffa80`077a7010
Parameter 2 : fffff880`04a9df68
Parameter 3 : 00000000`00000000
Parameter 4 : 00000000`00000002
Caused By Driver : dxgkrnl.sys
Caused By Address : dxgkrnl.sys+5d000
File Description :
Product Name :
Company :
File Version :
Processor : x64
Crash Address : ntoskrnl.exe+75c40
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\031513-50372-01.dmp
Processors Count : 8
Major Version : 15
Minor Version : 7601
Dump File Size : 556,720
==================================================

Subsequent attempts to boot all result in a BSOD, as shown above. I did, however manage to boot in safe mode. Although, it looked like this.



Also, when I disabled (and also uninstalled) my ATI graphics card drivers, I could boot normally, but with the crazy lines, so basically, the graphics card is what was causing the BSOD, although the issue still persisted, indicating the cause was something different, possibly the on board graphics processor.

Also, I really don't think it's a software issue, since even at the splash screen, the problem persisted.




The second image above, the appears when the screen ought to have been blank.

And another peculiar fact. After running the diagnostics tool, with the weird lines, on the next boot up, at least from sometime the problem seems to have disappeared. Although, the diagnostics screen looks like this:


This problem appeared the first time about a week ago, out of the blue. Then I did some massive graphics drivers (that time only the ATI one) uninstalling/reinstalling etc. By the time I did this, and ran some integrity check, my computer just powered off during the reboot, but that was because it was really really hot. I let it cool down, and on the next boot it booted just fine, I reinstalled all the drivers, and it ran fine for about a week. And then today it happened again. As I said, after the diagnostics, it runs fine for a while, as it is now, when I'm typing this in. Could anybody tell what the problem might be, and what could be done? Any help would be greatly appreciated.

P.S. The on-board graphics cannot be disabled, at least not from the BIOS. No such options exist.
Edited by AG01 - 3/15/13 at 6:58am
post #2 of 5
Graphic corruption ahoy. If your laptop is running really hot...have you tried opening it, unsheating the heatsinks/fans, cleaning and then reseating them?Maybe it's overheating what's giving you the BSOD's and all those pretty glitches.
    
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post #3 of 5
Thread Starter 
Hey, Nonehxc,

I am not quite sure what exactly I was upto when this happened, neither do I remember if the laptop was particularly hot when this happened; but what I can say for certain, is that while I ran it in safe mode, and the diagnostics, it did run quite hot. In fact, when i disabled the graphics card and ran it, *with* the glitches, or in the safe mode, Speedfan showed the cores running at over 70 degrees celsius, even for <5% CPU load. At the moment, Speedfan shows me 54 degrees Celsius, and GPU-Z shows 55 degrees, and it seems to be running fine.

Is this is a well known and a well documented issue? Glitches like these, independent of LCD (since that's definitely running fine), even at bootup, that is, before drivers and software load?
post #4 of 5
Thread Starter 
Moreover, the BSODs were given due to the ATI graphics card. I know this because the BSODs were gone when I disabled that graphics card. However, the glitches problem still persisted, indicating that the cause of the problem was something different, probably the onboard graphics.
post #5 of 5
Quote:
Originally Posted by AG01 View Post

Hey, Nonehxc,

I am not quite sure what exactly I was upto when this happened, neither do I remember if the laptop was particularly hot when this happened; but what I can say for certain, is that while I ran it in safe mode, and the diagnostics, it did run quite hot. In fact, when i disabled the graphics card and ran it, *with* the glitches, or in the safe mode, Speedfan showed the cores running at over 70 degrees celsius, even for <5% CPU load. At the moment, Speedfan shows me 54 degrees Celsius, and GPU-Z shows 55 degrees, and it seems to be running fine.

Is this is a well known and a well documented issue? Glitches like these, independent of LCD (since that's definitely running fine), even at bootup, that is, before drivers and software load?
It's known that an overheating laptop can develop all sorts of issues, from just regular instability, to throttling of GPU or CPU due to overheating, shutdown due to reaching thermal limit set in BIOS, to BSOD's, graphical corruption and damage to the LCD/polarizer film, CPU, GPU, RAM or all of the above. Laptops are specially sensitive to temps, and it's a common occurrence that laptops overheat since all the hardware is crammed in such a small space and heat just spreads to everything, heatsinks/fans/vents are tiny small and get clogged with hairballs/dust if you're not attentive.

Since your issue seems to go away with temps in check, grab a screwdriver and start dismantling it and cleaning all. There should be some guides around the net as to how to dismantle it. You can blow the dust with your mouth and use Q-tips for that pesky adhesive dust that refuses to go away, but remember to let it dry for an hour, just in case you spit a bit when blowing, we don't want a shortcircuit wink.gif

After that, I would recommend a Windows 7+drivers reinstall since frequent BSOD's and shutdowns mess with your OS, but if it's fine, then continue using it.

As for future care, just remember to avoid putting it in your lap/bed/sofa/cushion constantly, but if temps are in check after cleaning and everything behaves as it should, I don't see why you can't enjoy your laptop confortably.
    
CPUMotherboardGraphicsRAM
Intel Core i7 6700K MAXIMUS VIII HERO NVIDIA GeForce GTX 1080 Ti G. 
RAMHard DriveHard DriveHard Drive
G. Samsung 830 SSD Western Digital Caviar Blue Seagate ST3 
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Noctua DH-15 Windows 10 Pro Dell U2311H  Genius 
PowerCaseMouseMouse Pad
Corsair RM750X Cooler Master Haf 932 Newskill Renshi Guang PixArt 3360 Newskill Nami 
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CPUMotherboardGraphicsRAM
Intel Core i7 6700K MAXIMUS VIII HERO NVIDIA GeForce GTX 1080 Ti G. 
RAMHard DriveHard DriveHard Drive
G. Samsung 830 SSD Western Digital Caviar Blue Seagate ST3 
CoolingOSMonitorKeyboard
Noctua DH-15 Windows 10 Pro Dell U2311H  Genius 
PowerCaseMouseMouse Pad
Corsair RM750X Cooler Master Haf 932 Newskill Renshi Guang PixArt 3360 Newskill Nami 
AudioAudioOther
Philips 100w speakers@Via2021 HD onboard Sennheiser HD598 Blackjack & Hookers 
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