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Posted by danilopts on February 18, 2008, 9:31 am
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Hi guys,
Something weird is happening with my gateway MX6447 notebook.
Whenever I press:
Fn + Home (Muting)
Fn + PgUp (Increase volume)
Fn + PgDn (Decrease volume)
Fn + Up (Increase brightness)
Fn + Dn (Decrease brightness)
The screen goes inteirely black, and some blue dots appear in the upper
left corner.
I've taken some pictures and filmed it, so you can see it for
yourself.
'[image: http://img146.imageshack.us/img146/7585/abcd0003tp6.th.jpg]'
(http://img146.imageshack.us/my.php?image=abcd0003tp6.jpg)
'[image: http://img223.imageshack.us/img223/6020/abcd0004mo1.th.jpg]'
(http://img223.imageshack.us/my.php?image=abcd0004mo1.jpg)
And the video:
http://br.youtube.com/watch?v=AXCX7SIQ0fA
I have reseted the keyboard by taking it out and plugging it in again
(like a Gateway tech told me to) and reformated the PC, but none of it
worked.
Yesterday I installed vista and I noticed that when I try to change the
brightness trought Windows Mobility Center, the same thing happens!
Do you have any idea of what might be going on??
Thanks!
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Posted by InnovaSource on February 18, 2008, 9:30 pm
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Sounds, like yet another Vista "undocumented feature." Did you check
Gateway's site for help before you moved to Vista? Here's the link
'Gateway Support - Windows Vista FAQs and Support Information'
(http://tinyurl.com/3avhl9)
Take a look and you'll likely find the problem and solution
Cheers
Paul Croubalian
'laptop parts, replacement motherboards, LCD panels, or complete
laptops,' (http://www.innovasource.ca)
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Posted by Quaoar on February 19, 2008, 6:18 pm
Please log in for more thread options danilopts wrote:
This *might* be a problem with the chipset drivers. Reload the
recommended chipset drivers from Gateway, not Intel.
Q
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Posted by tech.kyle on March 8, 2008, 12:50 am
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I had this same issue with my gateway notebook (although mine is an
mx6446). I had noticed in the past that when i when into the catalyst
control center for ati, under the integrated graphics tab, i had the
option to increase the UMA buffer size from the default 128mb to 256mb.
When i selected 256mb it made me restart my computer, although after
rebooting when i opened the ati controls again it was still set to
128mb. I recently downloaded a driver update from ati's website, and
after installing, i was able to make the change to 256mb, and have it
stay set after reboot. After doing this, however, i started having the
same issue: fn+vol keys caused the screen to go black for a few secs.
Apparently this has something to do with gateway's display for the
volume in the upper left corner being corrupted somehow. I dunno,
memory conflict or something? It's been a real pain researching this
issue because all of the key words in the problem bring up a lot of info
that has nothing to do with it... Anyway, I uninstalled the update and
went back to a version i got from the gateway site, and still had the
problem. I was within minutes of wiping my sys clean and reinstalling
(or becoming violent) when i thought about the UMA thing. I changed it
back to 128mb, rebooted, and poof! The problem is gone. I'm gonna try
the new drivers again and see if switching from 128 to 256 makes the
same thing happen, but for now the problem is gone!!!!
Hope this helps!! :cool:
gateway mx6446 : upgraded to 2gb RAM : WinXP MCE
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Posted by danimal_44 on April 19, 2008, 12:12 am
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I honestly believe that you saved my life. I have been so
frustrated by this problem and could get no answers from Gateway. I
would have eventually had a heart attack over this. I lowered my ATI
CCC UMA Frame Buffer to 128 and the issue was resolved.
Sincere thanks
--
danimal_44
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