[CentOS] CentOS 6.3 on ASUS G73S does not work external video

[Rob Kampen]

On 08/02/2012 05:10 PM, Johnny Hughes wrote:
> 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.
>
>   
Okay - I think I understand and the idea of two xorg.conf files seems 
like a great idea.
Will give this a try as soon as I locate another external video monitor 
with a VGA connector.
Thanks
>
>
>
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