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Brightness Control Hotkey No Working On Toshiba P105


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#1 CableBro

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Posted 15 March 2008 - 04:21 PM

I bought this laptop used with Vista on it and the LCD brightness control wont work. The Brihtness is set at default level which is tolerable but non the less i cannot adjust it brighter or less. I reinstalled Vista and installed XP media center edition and still cannot get the brightness to adjust. I have installed all of the toshiba drivers for this notebook including the recent ACPI bios and hotkey application. I am currently on XP MCE.
If anyone has any ideas to what could be wrong i would glady appreciate it. I have been at this for a few days now and no answers not even from the Toshiba site.

Thanks :thumbsup:

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#2 usasma

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Posted 15 March 2008 - 05:33 PM

I assume this is the "push the Fn button and another key" thingie? If so, check to ensure that the Fn key works by pressing it and one of the other functions to see if that works.

Then test the key that you use to adjust brightness - without using the Fn key. Does that key also perform it's designated function?

This'll let you determine if it's an error with the keyboard.
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#3 CableBro

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Posted 15 March 2008 - 06:03 PM

Thanks for replying.

The FN key works as well as the F6 and F7 key. I can see the GUI come up adjusting the brightness level up and down but nothing happens on my LCD. I'm assuming this can have something to do with power management but i'm not sure. All of the other power management features work.

Edited by CableBro, 15 March 2008 - 06:04 PM.


#4 usasma

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Posted 15 March 2008 - 07:18 PM

If the Fn keys work properly, I'd next suggest disabling all Power Management and seeing if that helps. If it doesn't, then I'd have to assume that there's an issue with the LCD - maybe the backlight is going out?
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#5 is_that_a_cupholder?

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Posted 04 September 2008 - 10:49 PM

I am having the same problem with my X205-SLI6 with Vista Ultimate.

I have called Toshiba Tech Support and they sent me to my local authorized service center. The tech there told me that it has to do with something being corrupt in Vista. He said he's seen a bunch of these issues and was able to fix one of them only for it to reappear again for some unknown reason. I didn't leave my PC with them to become another statistic though.

I'm researching to see what I could come up with. I reinstalled my graphics drivers and am now going to reinstall toshiba power management ('Toshiba value added added package for Vista' and 'Toshiba Flash Cards Support Utility for Windows Vista') and see what happens. Already did this about a month ago when ALL my Fn keys stopped working so I won't keep my hopes up.

I'll report what I find....if anything.

I know the keys work though because I can actually change the brightness before Vista comes up while it is still booting. I would 'upgrade' to XP in a heartbeat if Toshiba released XP drivers for my rig.

#6 garmanma

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Posted 05 September 2008 - 09:57 AM

Don't forget to check the support site driver's page, periodically. They don't always announce when a patch is available
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#7 layup

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Posted 29 January 2009 - 10:51 AM

I have had the same problem with my Satellite P-105, The screen brightness hot key (flash card) will display but it doesn't respond. All other hot keys seem to be working.

I purchased the laptop new in May 2007, I noticed the problem started about a year ago, probably after an automatic update was applied but not sure exactly when. I have unistalled/reinstalled Toshiba Flash Cards and updated the vid driver but no change. I also called Toshiba Tech Support, they would not give advise over the phone , suggested sending it to a repair center "probably a hardware problem". I didn't send it in because I don't think they really knew what to do about it. Just living with a dim screen :-(

I would be interested in hearing if anyone has any more info on this issue.

:thumbsup: ps. Out of curiosity I used the Spybot S&D System Startup tab (Mode>Advanced Mode>Tools>System Startup) to unselect the loading of "TCrdMain.exe" at startup and after rebooting the F6/F7 screen brightness controls are working! It appears that other Fn keys are working as well.

Edited by layup, 29 January 2009 - 11:30 AM.





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