Re: CentOS 6.3 on ASUS G73S does not work external video

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On 08/01/2012 11:33 PM, John R Pierce wrote:
> On 08/01/12 9:21 PM, Rob Kampen wrote:
>> just wondering which driver I need to be looking at / for that deals 
>> with the laptop's external video connector.
> the video hardware driver
>
>> Background - went to deliver a presentation last week and found that 
>> there was no way to get any video output to the external D-15 
>> connector (hooked up to a video projector).
>> Eventually I re-booted to windoze 7 and all worked just fine - major 
>> embarrassment after telling everyone how great Linux was.
>>
>> The laptop has a nvidia GTX 460M card and I use the el-repo
>> kmod-nvidia-295.59-1.el6.elrepo.x86_64
>> and
>> nvidia-x11-drv-295.59-1.el6.elrepo.x86_64
>>
>> I do have compiz-0.8.2-24.el6.x86_64 and 
>> compiz-gnome-0.8.2-24.el6.x86_64 running but as these should not be 
>> dealing directly with the hardware am not thinking they should matter.
>>
>> Not sure where to start trouble shooting - I tried lots of different 
>> screen resolutions via the System > Preferences > Display but no joy 
>> getting any signal out to the external connector. This laptop does 
>> have an hdmi socket but I was not using that, I thought the good old 
>> fashioned D-15 video plug should "just work" (tm).
>>
>> The function key <Fn> <F8> did toggle the laptop screen off and on and 
>> varied the resolution of the laptop display but never any output on 
>> the external connector. 
> those laptop graphics chips treat the VGA connector like a 2nd monitor, 
> I have no idea how you configure linux for multimonitor, but I know its 
> not nearly as easy as MS Windows where it just works.
>
>

Indeed that connector is treated as an "all the time on" 2nd monitor

If it is an nvidia card, you can use use the NVIDIA X Server Settings
link in "Menu => System => Administration" (if you install the drivers
from elrepo, which I recommend)

If it is another card that uses system drivers, you can use the "Menu =>
System => Display"

I just create 2 xorg.conf files and copy the one I need into place when
I hook up to my docking station on my Dell M4500.

 

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