Fonts, anti-aliasing and TFTs

James Ferris james at
Fri Jun 27 19:54:54 BST 2003

Thanks for the reply.

Yes I have tried with no sub-pixelling, and the problem is still there.
And I agree that it is very odd. I did a screen cap of a konsole window
and zoomed in with an editor, and sure enough, the lines are 1 pixel
wide and multi-coloured (this is with sub-pixelling off). With no
anti-aliasing they are solid black.

I'll send anyone who wants it a copy. In the meantime, I'm going to try
changing video drivers and then I'll try Mandrake. I have no reason for
thinking these will help, but it's something to pass the time until I
get a better idea.

-----Original Message-----
From: at
[ at] On Behalf Of
James Richard Tyrer
Sent: 27 June 2003 06:09
To: kde at
Subject: Re: [kde] Fonts, anti-aliasing and TFTs

James Ferris wrote:
> I run Redhat 9.0 at work, using KDE 3.1 as supplied. Its great  best 
> thing since the last best thing etc. I think, time to jump the MS ship

> at home too, and its still great except that all the fonts are 
> multi-coloured. I have a TFT panel (driven from a DVI connection) at 
> home and CRT at work, and whereas all my fonts are sharp and black on 
> the CRT, they are sharper but multi-coloured on the TFT. Ive tried the

> various sub-pixel hinting options to no avail.

Have you tried NO sub-pixel hinting (uncheck the box in Control Center
restart KDE and X)?

> Ive tried the MS fonts 
> from the windows partition, which gives a small improvement, but not
> The worst case is running konsole with a Courier New font  letters
> I,L etc are only 1 pixel wide (or look like it) and that pixel is
> out red and not black (with or without sub-pixeling in any of its 
> guises). 

This is very odd.  A pixel on a digital display consists of one Red one 
Green and one Blue element (a set of three) so if it is actually one
wide, then it (if driven with a digital connection) should turn all
colors off and be black.  Only when using the sub-pixel hinting on small

fonts should this happen.


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