Help: Diamond Stealth VV/S3968/TI3026, XFree86 3.1.2A, Hi Res Modes

Help: Diamond Stealth VV/S3968/TI3026, XFree86 3.1.2A, Hi Res Modes

Post by Brian Brenn » Thu, 07 Dec 1995 04:00:00



I have a Diamond Stealth Video VRAM video card with 2 megs of RAM, and
would like to use it with my nifty new CTX 1785GMe 17" monitor.  THe
monitor is capable of displaying up to 1280x1024 at 75kHz, 1600x1200 at
60kHz.  The Diamond csoftware, GO95, has no problems making the monitor
sync to these resolutions, so it's not really a hardware problem.

Anyway, I twiddled around with "xclk" and "vgaset" to no avail - I just
can't figure out the right ModeLine to use to make Linux/XFree86 put out
the right signal.  Here's what I have now:

----------------------------------------------------------------------
Section "Monitor"
    Identifier "LocalMonitor"
    VendorName "CTX"
    ModelName "1785GMe"
    BandWidth 135MHz
    HorizSync 30-85kHz
    VertRefresh 50-110Hz
    ModeLine
      "640x480" 25   640 656 752 800 480 491 493 525
    ModeLine
      "800x600"  36  800 808 944 1000   600 600 607 630 -HSync -VSync
    ModeLine
      "1024x768" 77  1024 1056 1096 1376  768 768 779 806 +HSync +VSync
    ModeLine
      "1152x864"  120  1152 1400 1416 1760 864 864 880 907 +HSync +HSync
EndSection

Section "Device"
    Identifier "Diamond"
    VendorName "Unknown"
    BoardName "Unknown"
    Option "Diamond"
    Clocks 25 28 32 36 40 45 50 65 71 72 75 77 80 110 120 130
EndSection
----------------------------------------------------------------------

640x480 works fine, 800x600 sometimes has trouble syncing, 1024x768 seems
ok, and anything higher I just can not figure out (the entry for 1152x864
here does not work...)

Also noteworthy, startx displays the following:

----------------------------------------------------------------------
XFree86 Version 3.1.2A / X Window System
(protocol Version 11, revision 0, vendor release 6001)
Release Date: Nov 19 1995
Operating System: Linux
Configured drivers:
  S3: accelerated server for S3 graphics adaptors (Patchlevel 0)
      mmio_928, s3_generic
(using VT number 7)

XF86Config: /usr/X11R6/lib/X11/XF86Config
(**) stands for supplied, (--) stands for probed/default values
(**) Mouse: type: mousesystems, device: /dev/cua1, baudrate: 1200
(**) S3: Graphics device ID: "Diamond"
(**) S3: Monitor ID: "LocalMonitor"
(**) FontPath set to "/usr/X11R6/lib/fonts/misc/,/usr/X11R6/lib/fonts/Type1/,/usr/X11R6/lib/fonts/Speedo/,/usr/X11R6/lib/fonts/75dpi/,/usr/X11R6/lib/fonts/100dpi/"
(**) S3: Option "diamond"
(--) S3: card type: PCI
(--) S3: chipset:   968 rev. 31
(--) S3: chipset driver: mmio_928
(--) S3: videoram:  2048k
(--) S3: Detected a TI ViewPoint 3026 RAMDAC rev. 11
(--) S3: Ramdac type: ti3026
(--) S3: Ramdac speed: 135
(--) S3: Using hardware cursor from Ti3026 RAMDAC
(--) S3: Using TI 3026 programmable clock (MCLK 66.818 MHz)
(--) S3: Maximum allowed dot-clock: 135.000 MHz
(**) S3: Mode "1024x768": mode clock =  77.000
(**) S3: Mode "800x600": mode clock =  36.000
(**) S3: Mode "640x480": mode clock =  25.000
(--) S3: Operating RAMDAC in pixel multiplex mode
(**) S3: Using 16 bpp.  Color weight: 565
(**) S3: Virtual resolution set to 1024x768
(--) S3: Local bus LAW is 0xF3000000
(--) S3: Using a banksize of 2048k, line width of 1024
(--) S3: Using a single 64x64 area at (960,768) for expanding pixmaps
(--) S3: Using 16 planes of 960x256 at (0,768) aligned 8 as font cache
----------------------------------------------------------------------

I have verified that the RAMDAC on my card is a ti3026.
(the chip reads: TVP 3026 / -175 PCE / 5001576 9507AN )
Is the maximum allowed dot-clock really 135 Mhz?

Also, for any monitor experts out there, I have the monitor's brightness
control turned all the way down, and contrast turned all the way up, and
yet the true black parts of the screen still seem greyish.  Any ideas here
either?

Any help truly appreciated,
  Brian

 
 
 

Help: Diamond Stealth VV/S3968/TI3026, XFree86 3.1.2A, Hi Res Modes

Post by Matthias Rau » Sat, 09 Dec 1995 04:00:00


: I have a Diamond Stealth Video VRAM video card with 2 megs of RAM, and
: would like to use it with my nifty new CTX 1785GMe 17" monitor.  THe
: monitor is capable of displaying up to 1280x1024 at 75kHz, 1600x1200 at
: 60kHz.  The Diamond csoftware, GO95, has no problems making the monitor
: sync to these resolutions, so it's not really a hardware problem.

: Anyway, I twiddled around with "xclk" and "vgaset" to no avail - I just
: can't figure out the right ModeLine to use to make Linux/XFree86 put out
: the right signal.  Here's what I have now:

: ----------------------------------------------------------------------
: Section "Monitor"
:     Identifier "LocalMonitor"
:     VendorName "CTX"
:     ModelName "1785GMe"
:     BandWidth 135MHz
:     HorizSync 30-85kHz
:     VertRefresh 50-110Hz
:     ModeLine
:       "640x480" 25   640 656 752 800 480 491 493 525
:     ModeLine
:       "800x600"  36  800 808 944 1000   600 600 607 630 -HSync -VSync
:     ModeLine
:       "1024x768" 77  1024 1056 1096 1376  768 768 779 806 +HSync +VSync
:     ModeLine
:       "1152x864"  120  1152 1400 1416 1760 864 864 880 907 +HSync +HSync
: EndSection

: Section "Device"
:     Identifier "Diamond"
:     VendorName "Unknown"
:     BoardName "Unknown"
:     Option "Diamond"
:     Clocks 25 28 32 36 40 45 50 65 71 72 75 77 80 110 120 130
: EndSection
: ----------------------------------------------------------------------

: 640x480 works fine, 800x600 sometimes has trouble syncing, 1024x768 seems
: ok, and anything higher I just can not figure out (the entry for 1152x864
: here does not work...)

: Also noteworthy, startx displays the following:

: ----------------------------------------------------------------------
: XFree86 Version 3.1.2A / X Window System
: (protocol Version 11, revision 0, vendor release 6001)
: Release Date: Nov 19 1995
: Operating System: Linux
: Configured drivers:
:   S3: accelerated server for S3 graphics adaptors (Patchlevel 0)
:       mmio_928, s3_generic
: (using VT number 7)

: XF86Config: /usr/X11R6/lib/X11/XF86Config
: (**) stands for supplied, (--) stands for probed/default values
: (**) Mouse: type: mousesystems, device: /dev/cua1, baudrate: 1200
: (**) S3: Graphics device ID: "Diamond"
: (**) S3: Monitor ID: "LocalMonitor"
: (**) FontPath set to "/usr/X11R6/lib/fonts/misc/,/usr/X11R6/lib/fonts/Type1/,/usr/X11R6/lib/fonts/Speedo/,/usr/X11R6/lib/fonts/75dpi/,/usr/X11R6/lib/fonts/100dpi/"
: (**) S3: Option "diamond"
: (--) S3: card type: PCI
: (--) S3: chipset:   968 rev. 31
: (--) S3: chipset driver: mmio_928
: (--) S3: videoram:  2048k
: (--) S3: Detected a TI ViewPoint 3026 RAMDAC rev. 11
: (--) S3: Ramdac type: ti3026
: (--) S3: Ramdac speed: 135
: (--) S3: Using hardware cursor from Ti3026 RAMDAC
: (--) S3: Using TI 3026 programmable clock (MCLK 66.818 MHz)
: (--) S3: Maximum allowed dot-clock: 135.000 MHz
: (**) S3: Mode "1024x768": mode clock =  77.000
: (**) S3: Mode "800x600": mode clock =  36.000
: (**) S3: Mode "640x480": mode clock =  25.000
: (--) S3: Operating RAMDAC in pixel multiplex mode
: (**) S3: Using 16 bpp.  Color weight: 565
: (**) S3: Virtual resolution set to 1024x768
: (--) S3: Local bus LAW is 0xF3000000
: (--) S3: Using a banksize of 2048k, line width of 1024
: (--) S3: Using a single 64x64 area at (960,768) for expanding pixmaps
: (--) S3: Using 16 planes of 960x256 at (0,768) aligned 8 as font cache
: ----------------------------------------------------------------------

: I have verified that the RAMDAC on my card is a ti3026.
: (the chip reads: TVP 3026 / -175 PCE / 5001576 9507AN )
: Is the maximum allowed dot-clock really 135 Mhz?

: Also, for any monitor experts out there, I have the monitor's brightness
: control turned all the way down, and contrast turned all the way up, and
: yet the true black parts of the screen still seem greyish.  Any ideas here
: either?

: Any help truly appreciated,
:   Brian

I guess your ramdac speed is too low. In this newsgroup is a thread about
IBM ramdacs on Diamond and they vary between 170-220Mhz. Probably your
ramdac can do better but I can't help you there.
Be careful with pushed contrast. I ruined my NEC 2a this way. The whole
sreen is some kind of grey.
regards
matthias

 
 
 

Help: Diamond Stealth VV/S3968/TI3026, XFree86 3.1.2A, Hi Res Modes

Post by Don Dettk » Sat, 09 Dec 1995 04:00:00



>I have a Diamond Stealth Video VRAM video card with 2 megs of RAM, and
>would like to use it with my nifty new CTX 1785GMe 17" monitor.  THe
>monitor is capable of displaying up to 1280x1024 at 75kHz, 1600x1200 at
>60kHz.  The Diamond csoftware, GO95, has no problems making the monitor
>sync to these resolutions, so it's not really a hardware problem.
>Anyway, I twiddled around with "xclk" and "vgaset" to no avail - I just
>can't figure out the right ModeLine to use to make Linux/XFree86 put out
>the right signal.  Here's what I have now:
>Section "Monitor"
>    Identifier "LocalMonitor"
>    VendorName "CTX"
>    ModelName "1785GMe"
>    BandWidth 135MHz
>    HorizSync 30-85kHz
>    VertRefresh 50-110Hz
>    ModeLine
>      "640x480" 25   640 656 752 800 480 491 493 525
>    ModeLine
>      "800x600"  36  800 808 944 1000   600 600 607 630 -HSync -VSync
>    ModeLine
>      "1024x768" 77  1024 1056 1096 1376  768 768 779 806 +HSync +VSync
>    ModeLine
>      "1152x864"  120  1152 1400 1416 1760 864 864 880 907 +HSync +HSync
>EndSection
>Section "Device"
>    Identifier "Diamond"
>    VendorName "Unknown"
>    BoardName "Unknown"
>    Option "Diamond"
>    Clocks 25 28 32 36 40 45 50 65 71 72 75 77 80 110 120 130
>EndSection
>640x480 works fine, 800x600 sometimes has trouble syncing, 1024x768 seems
>ok, and anything higher I just can not figure out (the entry for 1152x864
>here does not work...)

Lose the "Clocks" line.  You might need "ClockChip "ti3026"" instead,
but I don't think so.

You might try some of these modelines:


Modeline "640x480"     31.5   640  680  720  864   480  488  491  521


Modeline "800x600"  50   800  856  976 1008   600  613  619  634 +hsync +vsync


Modeline "1024x768"    85    1024 1088 1208 1280   768  772  775  823


Modeline "1152x864"    110    1152 1200 1392 1448   864  870  872  907


Modeline "1280x1024"  130    1280 1336 1440 1616  1024 1027 1030 1056

- Show quoted text -

Quote:>Also noteworthy, startx displays the following:
>XFree86 Version 3.1.2A / X Window System
<snip>
>Configured drivers:
>  S3: accelerated server for S3 graphics adaptors (Patchlevel 0)
>      mmio_928, s3_generic
<snip>
>XF86Config: /usr/X11R6/lib/X11/XF86Config
<snip>
>(**) S3: Option "diamond"
>(--) S3: card type: PCI
>(--) S3: chipset:   968 rev. 31
>(--) S3: chipset driver: mmio_928
>(--) S3: videoram:  2048k
>(--) S3: Detected a TI ViewPoint 3026 RAMDAC rev. 11
>(--) S3: Ramdac type: ti3026
>(--) S3: Ramdac speed: 135
>(--) S3: Using hardware cursor from Ti3026 RAMDAC
>(--) S3: Using TI 3026 programmable clock (MCLK 66.818 MHz)
>(--) S3: Maximum allowed dot-clock: 135.000 MHz
>(**) S3: Mode "1024x768": mode clock =  77.000
>(**) S3: Mode "800x600": mode clock =  36.000
>(**) S3: Mode "640x480": mode clock =  25.000
>(--) S3: Operating RAMDAC in pixel multiplex mode
>(**) S3: Using 16 bpp.  Color weight: 565
>(**) S3: Virtual resolution set to 1024x768
>(--) S3: Local bus LAW is 0xF3000000
>(--) S3: Using a banksize of 2048k, line width of 1024
>(--) S3: Using a single 64x64 area at (960,768) for expanding pixmaps
>(--) S3: Using 16 planes of 960x256 at (0,768) aligned 8 as font cache
>I have verified that the RAMDAC on my card is a ti3026.
>(the chip reads: TVP 3026 / -175 PCE / 5001576 9507AN )
>Is the maximum allowed dot-clock really 135 Mhz?

Yes, because you told it so -- "BandWidth 135MHz".  The monitor is the
limiting factor here.

It appears that you have set your virtual resolution to 1024x768.  It
should be at least as high as the best physical resolution you set up.
Perhaps that is why you aren't getting anything better than 1024x768.

Quote:>Also, for any monitor experts out there, I have the monitor's brightness
>control turned all the way down, and contrast turned all the way up, and
>yet the true black parts of the screen still seem greyish.  Any ideas here
>either?

HTH.

---
Don Dettke,  Software Engineering Consultant

 
 
 

Help: Diamond Stealth VV/S3968/TI3026, XFree86 3.1.2A, Hi Res Modes

Post by Harald Koen » Sat, 09 Dec 1995 04:00:00



Quote:> I have verified that the RAMDAC on my card is a ti3026.
> (the chip reads: TVP 3026 / -175 PCE / 5001576 9507AN )

                               ^^^

Quote:> Is the maximum allowed dot-clock really 135 Mhz?

no, it's 175 MHz (see above) but this can't be detected. you have to specify

        DACspeed 175

in the device section to use higher frequencies.

Harald

--
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be required to send an email notice                0--,|    /OOOOOOO\
24 hours prior to complete hardware failure!      <_/  /  /OOOOOOOOOOO\
                                                    \  \/OOOOOOOOOOOOOOO\
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Harald Koenig,                                         \/\/\/\/\/\/\/\/\/
Inst.f.Theoret.Astrophysik                              //  /     \\  \

 
 
 

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Has anyone got a Diamond Stealth 32 VLB (2MB DRAM) to work with XFree86 3.1.

Note: I am using the "freq" program to set the third clock.

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

Stevens Institute of Technology
Hoboken, NJ

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