[H-GEN] problems with vertical sync rate

Russell Stuart russell-humbug at stuart.id.au
Mon Sep 21 00:06:52 EDT 2009


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).

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.

3.  What version of xorg are you running?

<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>




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