Forum Home
Press F1
 
Thread ID: 141787 2016-02-26 07:18:00 Laptop screen stuck on Default 640x480 bruce666 (8727) Press F1
Post ID Timestamp Content User
1416551 2016-02-28 21:21:00 What can happen:

The nvidia graphics chip fails, either fully or partially (often from running hot)

The laptop display reverts to either the onboard Intel graphics chip (some have both),
or keeps running on the NV video chip, but wont load NV drivers due to chip damage (it runs on the basic VGA driver only)

Have seen both of those scenarios on laptops.
1101 (13337)
1416552 2016-02-28 21:34:00 www.nvidia.com dugimodo (138)
1416553 2016-02-28 22:05:00 Thanks wainuitech
I ran the DDU tool in safe mode as Clean and Restart and on restart the graphics weren't rubbish at all, though the colour and themes seemed bit different to what I had before. I had a choice of resolutions and the normal colour palette. So already very satisfactory. But I tried to reinstall the NVIDIA driver from this webpage

www.geforce.com

which downloads an extractable programme, which I ran, but it said "Wrong version of Windows" and "no NVIDIA product installed" or words to that effect.
The graphics dialogue box now says I have "Generic Non-PnP monitor on Standard VGA Graphics Adapter." And Device Manager shows "Standard VGA Graphics Adapter." The link provided -- Unless you have reinstalled Windows 7 using a x64 Bit OS they wont work.

The Default install and drivers according to Acer are X86 (32bit) www.acer.com If its the original install Try downloading the drivers from Acers Site.

6991
wainuitech (129)
1416554 2016-03-02 08:55:00 Hi Wainuitech
I got the driver from the acer link above. It installed smoothly but after restarting as asked I got a black screen. Next start got me a dialogue box "repairing your computer" It offered System Restore, but that seemed to just hang. A few more starts gave the same result. Next I started in Safe Mode with networking. That worked fine, in its limited way. Eventually in Safe mode I disabled the NVIDIA graphics in System Manager. Immediately I had normal starts and a near-normal graphical environment as described in post #10. Any suggestions? If it's unfixable - e.g graphics hardware permanently damaged - I could live with things as they are. At the moment I don't often need the superpowers of the NVIDIA card.
bruce666 (8727)
1416555 2016-03-02 21:33:00 Eventually in Safe mode I disabled the NVIDIA graphics in System Manager. Immediately I had normal starts and a near-normal graphical environment .

Its this
The nvidia graphics chip fails, either fully or partially (often from running hot)
The laptop display reverts to either the onboard Intel graphics chip (some have both),
or keeps running on the NV video chip, but wont load NV drivers due to chip damage (it runs on the basic VGA driver only)

ie , the Nvidia graphics chip is faulty.
1101 (13337)
1416556 2016-03-05 20:25:00 Hi

Thanks to all who helped! I conclude I have damaged the video card through overheating. The moral I take from this saga is to take the access panels off and blow/vacuum airways regularly *before* the problem, not after.

kind regards
Bruce
bruce666 (8727)
1416557 2016-03-05 21:59:00 Personally wouldn't be so fast to say a damaged Card. When booting in Linux you said it worked OK. The card my very well be damaged, BUT what I would do is either put in another HDD or wipe the one thats in it if you didn't have a spare, and do a complete reinstall. Often when drivers get corrupted there's a flow on effect.

This is what all the big name manufactures do, especially if its a warranty issue, ( unless its an obvious failure) put the OS back in fresh, that way you know its not something corrupted, if it still doesn't work then yes hardware problem.

Example: persons ALL in One I have here now, AVG totally went belly up, stopped ALL internet access on both Ethernet and Wireless and broke a couple of other programs, removed AVG completely ( what a job that was :waughh::waughh: ) ran all the MS repairs, no faults found, trouble shooter said theres a problem with Drivers, replaced them ALL - No good - Ran A repair install, and everything now works fine.
wainuitech (129)
1 2