screen wavy after upgrade to Feisty - refresh rate? can't config display in kcontrol...

Caleb Marcus caleb.marcus at
Thu Nov 15 22:21:33 UTC 2007

Have you tried the "auto-adjust" function on your monitor? That can
sometimes get it to interpret the VGA signals correctly.
On Thu, 2007-11-15 at 08:01 -0500, anthony baldwin wrote:

> Robert Spanjaard wrote:
> > On Wed, 14 Nov 2007 13:07:03 -0500, anthony baldwin wrote:
> >
> >   
> >> Oi colegas,
> >>
> >> Since upgrading to Feistry from Dapper yesterday, I am noting that
> >> the screen is wavy.  That's the best way I can think of to explain the 
> >> phenomenon.
> >> The image appears to oscillate at a rapid frequency and short wavelength.
> >> I've made no changes to vidcard, etc. since dapper,
> >> but I am operating at a slightly higher screen res.
> >> I can't find where to alter the screen res in kcontrol (using Kubuntu, sim).
> >> I can ignore it while doing lots of stuff, but, considering that I am a 
> >> translator
> >> and spend all day working with written text, and the text is doing this
> >> (I can read fine, but), it is giving me a headache.
> >> I suspect it has something to do with the refresh rate.
> >> Should I be looking at than in my xconf stuff?
> >>     
> >
> > What kind of screen do you have? If it's a CRT (with a tube), it can be
> > caused by some other electrical device sitting close to the screen.
> > I've had the same problem with a pair of speakers once, and the waving
> > stopped when I removed them.
> >
> >   
> Oh yeah, I know what you mean.
> It´s kind of like that, but not quite as drastic.
> The oscillation is at a very short wavelength, fairly rapid frequency.
> My monitor is an acer flatscreen lcd.
> It wasn´t doing this while using dapper just before upgrading to feisty,
> so, I assume something in feisty changed something, rather than
> any environmental factor.  No environmental factors have changed.
> Good guess, though.
> thanks,
> tony
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