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Mad Scientist
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# 136547 1-Dec-2013 09:04
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Hi. As I have gotten older I now work on the premise if it ain't broke don't fix it. But it may be broke and there may be a fix. But is there a catch?

I have a Haswell Laptop will intel 4600 GPU - Dell drivers, installing Intel's drivers is not possible as it says Dell does not allow it.
It also has an Nvidia 750M whcih i have updated the drivers.

Problem is when i wake up from sleep the screen remains black. The fix is easy, just put it back to sleep and wake it again.

The question is:
1) Is Dell locking out the Intel Driver because it has a special code to save power (eg forcing Laptop to use Intel while not doing GPU intensive tasks? - or is this technically impossible for those who knows windows 8 power management?)

2) Will uninstalling the Intel drivers and reinstalling work? or cause some weird problems? I read somewhere that some people who cannot install intel drivers for a different reason need to uninstall Nvidia before installing intel (but i suspect mine is a different issue).

Oh the joys of technology




Swype on iOS is detrimental to accurate typing. Apologies in advance.


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Mad Scientist
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  # 943868 1-Dec-2013 23:42
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this is the weirdest thing ever. I shall document what happened.

created system restore point.

disabled intel driver.

screen freezes but mouse pointer moves you just can't click on anything and nothing will be clicked on.

logged out logged in fixed.

removed intel driver (checked delete saved driver)

tried to install intel downloaded driver - will not allow.

restarted.

installed intel downloaded driver fine.

BUT - the version is different from the downloaded one (displayed version 10.x, release notes of downloaded driver 15.x; displayed driver date 31/10, release notes of downloaded driver 20/11)

could not believe it.

repeated the process this time there is no lockdown so definitely not the dell driver but I am guessing same version.

nothing missing so far.




Swype on iOS is detrimental to accurate typing. Apologies in advance.




Mad Scientist
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  # 943869 1-Dec-2013 23:43
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does anyone know if i disabled the nvidia driver on device manager whether it will save any power?

if not why don't i disable intel instead and use nvidia all the time?




Swype on iOS is detrimental to accurate typing. Apologies in advance.


 
 
 
 




Mad Scientist
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  # 943871 2-Dec-2013 00:06
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ok ok no reason to panic yet. did a system restore and the old driver is definitely different.

so I did an unrestore.

let's hope nothing's changed, apart from the waking up to a black screen problem.




Swype on iOS is detrimental to accurate typing. Apologies in advance.


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