XFREE ? Chips & Tech LCD setup

XFREE ? Chips & Tech LCD setup

Post by Bruce Daviso » Wed, 05 Jul 1995 04:00:00



I have a DUAL 'Pentimedia 1' dx4100 with Chips & Tech video driver model
F65545 - Please let me know if any one has setup XFREE for this driver.
TA
 
 
 

XFREE ? Chips & Tech LCD setup

Post by Karl_Kleinpa.. » Thu, 06 Jul 1995 04:00:00



> I have a DUAL 'Pentimedia 1' dx4100 with Chips & Tech video driver model
> F65545 - Please let me know if any one has setup XFREE for this driver.

I did an install of Linux from the InfoMagic CD-ROM set on a laptop
this past weekend, and got X working without too much trouble.  I took
quite careful notes throughout my installation process -- about 12
pages' worth -- and transcribed them later.  Below is what I did to
get X working on my system.

The system in question is a Hyperdata Expor CD100.  It's actually
manufactured by an entity called Sunrex Technology Corp, Taiwan,
according to the spec sticker on the case bottom, and is also sold as
an "MPC Technologies series 800" and a "CD Brick 100" by someone else.
All the same box, different importers, I guess.

This system has a ct65540 -- a very bland VGA chipset -- driving a
10.4" dual scan display.  There are rumors floating around that the
ct655XX is incapable of anything but 640x480; I don't know if that is
the case or not, but since I have no intention of ever attaching an
ext.monitor (this system will be _very_ portable), this doesn't matter
to me.  Thus, some of my suggestions gloss over possibly interesting
variants if one were to want to use an ext.monitor.

Below, you get what you pay for.  :-)
________________

Don't bother with SuperProbe, it's hopeless, completely hopeless
Unnecessary besides

If it matters (doesn't seem to), VGA chip set is a CHIPS 65540 VGA
Flat Panel/CRT Controller (per Appendix B[?] from CD-ROM manual).
"Fully IBM VGA-compatible"...and that seems to be quite true.

vgaset is mildly interesting, but seems irrelevant, given success
found when ignoring its values

/usr/X11/lib/X11/doc/Monitors seems irrelevant as well -- insuf info
to be useful for laptop LCD screen

Just run xf86config (which is NOT where the booklet says it should be)
Answers to xf86config's questions:
 1. PS/2 mouse
 2. Yes, Emulate3Buttons
 3. /dev/mouse
 4. No non-ASCII character generation ("don't futz with my Meta key")

 6. 50-70 Hz (item 1)
 7. "VGA Color LCD laptop" (but free form, doesn't matter)
 8. "Hyperdata (Sunrex Technologies Corp)" (but free form...)
 9. "Expor CD100" (but free form...)
10. XF86_SVGA (item 3)
11. Sure, set the symlink (can fix later, any time, if wrong)
12. 1024K video RAM (item 3)
    (don't bother to look at card file)
13. free form nonsense
14. free form nonsense
15. free form nonsense
16. No clockchip setting (no accelerated server)
17. Don't bother to do X -probeonly now
18. item 4, yes, everything's fine

Done with xf86config...leaving an incorrect config file in
/etc/XF86Config.  Edit it:

1. Around line 167, uncomment the Bandwidth line (maybe unnecessary?)
2. Comment out excess/unneeded Modeline configurations:
        640x400, 800x600, 1024x768, 1280x1024, 3??x2??, 4??x3??

        "clocks" info from a manual "X -probeonly" (check it!)

5. Uncommented "VideoRam 1024K" around line 310
6. Comment out excess geometries (800x600, 1024x768) in Modes line,
        around line 330
7. Change "Virtual 1152x900" to something more sensible, like 1024x768
        (maximum size, given 1M video RAM), or make virtual == real
        with 640x480, then find a better window manager (e.g. tvtwm)
        to give something genuinely interesting like 1280x960 via 2x2
        of physical (I hate the quasi-virtual size where the mouse
        moving to the border causes the whole display to shuffle
        around (vicinity of line 333))
________________

I expect some further tweaking might give slightly improved results,
but my goal was to get X up and running in the minimum time, and I was
alarmingly (and unexpectedly) successful.  Just take "X -probeonly"
seriously, look it over for clocks and frequencies, and just make sure
that the same values show up in your XF86Config.

 
 
 

XFREE ? Chips & Tech LCD setup

Post by Matthias Ra » Sat, 08 Jul 1995 04:00:00





>> I have a DUAL 'Pentimedia 1' dx4100 with Chips & Tech video driver model
>> F65545 - Please let me know if any one has setup XFREE for this driver.

>[...]
>This system has a ct65540 -- a very bland VGA chipset -- driving a
>10.4" dual scan display.  There are rumors floating around that the
>ct655XX is incapable of anything but 640x480

Windows and OS/2 can do 1024x768 on an external monitor...

Matthias
--

Matthias Rabe, Avenwedder Str. 494, D 33335 G"utersloh, Tel.: 49 (0)5209-6673