[H-GEN] problems with vertical sync rate

[Peter Robinson]

Russell Stuart wrote:
> [ Humbug *General* list - semi-serious discussions about Humbug and     ]
> [ Unix-related topics. Posts from non-subscribed addresses will vanish. ]
>
> On Mon, 2009-09-21 at 13:33 +1000, Peter Robinson wrote:
>   
>> I am running Ubuntu Jaunty on my Dell e6400 (with nvidia card).
>>
>> <snip>
>>
>> I vaguely remember reading something that suggested the newer Ubuntu's 
>> don't use xorg as much.
>>     
>
> Not really.  I think "Ubuntu's don't use xorg as much" actually means it
> is mostly optional, but it does respect what is there.  Or at least it
> did.  In what I can only describe as an "interesting" design decision,
> I saw in the xorg 1.6 release notes it has started re-writing your
> xorg.conf for you to reflect the hardware.
>
> Anyhow, I am not replying because of any of that.  Three things:
>
> 1.  I used a Dell laptop with an nvidia card using the NVidia's driver
>     that appears to work.  (The open source one is too slow.)  The 
>     xorg.conf to make it work is big, complex, fragile, and most
>     definitely not ignored.  You can have my xorg.conf if you like, 
>     but it is set up for dual monitor (as opposed to cloning what 
>     is on the LCD which is what most people seem to use).
>
>   
I'll have it if you are offering :)
It might give me some clue on what to do.
> 2.  It some cases it only works if I (re)start X after the external
>     monitor is plugged in.  And I have to manually find a mode line
>     that does work.  Fortunately has been turned into a point and
>     click affair by xrandr.  Gnome has a nice little applet that lets
>     you do it, as does KDE, and there is the xrandr command line
>     interface.  The nvidia-settings program does what xrandr does,
>     on steroids.
>
>   
I use nvidia-settings to set the screen resolution in lectures since 
lectopia wants 1024x768 :(

but I don't see how to use that tool to change the refresh rate????

> 3.  What version of xorg are you running?
>   
X.Org X Server 1.6.0 (from /var/log/Xorg.0.log)
> <rant> Given I have to restart the Xserver anyway, and given at restart
> the Xserver does an EDID probe to determine what the monitor is capable
> of, I think then forcing me to find valid configuration by trial and
> error using xrandr is a bug. Probably Nvidia's bug.</rant>
>
>   
My problem is that the data projector can cope with a high refresh rate 
but lectopia can't and so I have to do some config anyway :(

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