XFree86 and high resolutions

XFree86 and high resolutions

Post by Daniel Par » Wed, 28 Jan 1998 04:00:00



I've got a 17" Viewsonic 17PS and a ET6000 based Hercules card
(Dynamite/128 I believe).  You probably didn't need to know that.
What's important is that they are both capable of doing.. say
1024x768x16bpp at 80+ Hz or so vertical refresh.  The default
/etc/XF86Config file only has mode timings that support up to
76Hz.  Yeah, I'm being picky, but I want to have the highest
refresh I can.  For example, I'd never do this, but if I wanted
to bring it down to 1024x768x256 my hardware is capable of
90+ Hz (I think).. yet the /etc/XF86Config file will still only
support 76.  This shouldn't have anything to do with the
server I'm using (which btw, is SVGA), because the mode timings
themselves are in the config file.  I figure all I need to do is
add some lines to that section of the file, but I have no
idea what numbers to put in..

Danny Park

 
 
 

XFree86 and high resolutions

Post by Eric J. Fenderso » Fri, 30 Jan 1998 04:00:00


<snip>

Quote:>I figure all I need to do is
> add some lines to that section of the file, but I have no
> idea what numbers to put in..

I wouldn't*with it.  I did and it cost me a video card, even though I
was positive that the manual said the board was capable of the refresh I
wanted to use.  Oh well, at least the warranty was still good...
--
** Eric J. Fenderson ***

 
 
 

XFree86 and high resolutions

Post by homegro » Mon, 09 Feb 1998 04:00:00



>I've got a 17" Viewsonic 17PS and a ET6000 based Hercules card
>(Dynamite/128 I believe).  You probably didn't need to know that.
>What's important is that they are both capable of doing.. say
>1024x768x16bpp at 80+ Hz or so vertical refresh.  The default
>/etc/XF86Config file only has mode timings that support up to
>76Hz.  Yeah, I'm being picky, but I want to have the highest
>refresh I can.  For example, I'd never do this, but if I wanted
>to bring it down to 1024x768x256 my hardware is capable of
>90+ Hz (I think).. yet the /etc/XF86Config file will still only
>support 76.  This shouldn't have anything to do with the
>server I'm using (which btw, is SVGA), because the mode timings
>themselves are in the config file.  I figure all I need to do is
>add some lines to that section of the file, but I have no
>idea what numbers to put in..

I remember having read some kind of HOWTO or so somewhere but I can't
remember where or what exactly. I only remember it explained in detail
what all the numbers meant and how to calculate them. Worth a look if
you can find it. I'll go looking for it and mail you if I do.

Have fun,      
        Luca

Luca Ingianni

remove *nospam* to mail me

 
 
 

XFree86 and high resolutions

Post by Kresimir Kumeric » Tue, 10 Feb 1998 04:00:00



: >1024x768x16bpp at 80+ Hz or so vertical refresh.  The default
: >/etc/XF86Config file only has mode timings that support up to
: >76Hz.  Yeah, I'm being picky, but I want to have the highest
: >refresh I can.  For example, I'd never do this, but if I wanted
[snip]
: >add some lines to that section of the file, but I have no
: >idea what numbers to put in..

: I remember having read some kind of HOWTO or so somewhere but I can't
: remember where or what exactly. I only remember it explained in detail
: what all the numbers meant and how to calculate them. Worth a look if
: you can find it. I'll go looking for it and mail you if I do.

  It's XFree86-Video-Timings-HOWTO.

--
------------------------------------------------------------

Department of Physics, University of Zagreb, CROATIA
------------------------------------------------------------

 
 
 

XFree86 and high resolutions

Post by Vic Muly » Fri, 13 Feb 1998 04:00:00




> >I've got a 17" Viewsonic 17PS and a ET6000 based Hercules card
> >(Dynamite/128 I believe).  You probably didn't need to know that.
> >What's important is that they are both capable of doing.. say
> >1024x768x16bpp at 80+ Hz or so vertical refresh.  The default
> >/etc/XF86Config file only has mode timings that support up to
> >76Hz.  Yeah, I'm being picky, but I want to have the highest
> >refresh I can.  For example, I'd never do this, but if I wanted
> >to bring it down to 1024x768x256 my hardware is capable of
> >90+ Hz (I think).. yet the /etc/XF86Config file will still only
> >support 76.  This shouldn't have anything to do with the
> >server I'm using (which btw, is SVGA), because the mode timings
> >themselves are in the config file.  I figure all I need to do is
> >add some lines to that section of the file, but I have no
> >idea what numbers to put in..

> I remember having read some kind of HOWTO or so somewhere but I can't
> remember where or what exactly. I only remember it explained in detail
> what all the numbers meant and how to calculate them. Worth a look if
> you can find it. I'll go looking for it and mail you if I do.

> Have fun,
>         Luca

> Luca Ingianni

> remove *nospam* to mail me

Using xvidtune is probably better than tweaking it by
hand.

-Vic

 
 
 

1. XFree86 4.1 at high resolution

Hi all,

Under XFree86-3.3.6 with my hardware (19'' monitor S3 86C988 8Mb
videocard) I'm able to get a resulution of 1600x1200.
I upgraded to XFree86-4.1.0 where I can get only a resolution of
1280x1024.
I used all the possible X configuration tools but I've always get the
same results.
In the log I see:

(II) S3VIRGE(0): Supported VESA Video Modes:






(II) S3VIRGE(0): Manufacturer's mask: 0
(II) S3VIRGE(0): Supported Future Video Modes:
(II) S3VIRGE(0): #0: hsize: 800  vsize 600  refresh: 85  vid: 22853
(II) S3VIRGE(0): #1: hsize: 1024  vsize 768  refresh: 85  vid: 22881
(II) S3VIRGE(0): #2: hsize: 1600  vsize 1200  refresh: 75  vid: 20393
(II) S3VIRGE(0): #3: hsize: 832  vsize 624  refresh: 75  vid: 20297
(II) S3VIRGE(0): #4: hsize: 640  vsize 480  refresh: 85  vid: 22833
(II) S3VIRGE(0): #5: hsize: 1280  vsize 1024  refresh: 85  vid: 39297
(II) S3VIRGE(0): #6: hsize: 1152  vsize 864  refresh: 75  vid: 20337
(II) S3VIRGE(0): Monitor name: Sampo Tech.
(II) S3VIRGE(0): Monitor name: KM810
(II) S3VIRGE(0): Ranges: V min: 50  V max: 150 Hz, H min: 30  H max: 95 kHz, PixClock max 210 MHz
(II) S3VIRGE(0): Serial No: 000001

---

Here I saw no mention about a VESA mode of 1600x1200. Is it in
developement?

....

(--) S3VIRGE(0): Detected current MCLK value of 50.114 MHz
        S3VDisableMmio
        S3VPreInit minClock=20000, maxClock=440000
(II) S3VIRGE(0): AlphaScan810: Using hsync range of 30.00-95.00 kHz
(II) S3VIRGE(0): AlphaScan810: Using vrefresh range of 50.00-150.00 Hz
(II) S3VIRGE(0): Clock range:  20.00 to 440.00 MHz
(II) S3VIRGE(0): Not using mode "1600x1200" (horizontal timing out of range)

---

Again with the previous XFree86 my 30-95kHz monitor was able to show a
1600x1200 resolution. Here I get an error about horizontal timing out of
range.
How can I solve this problem?

Thanks for any info.
Bye.

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