Problem with thinkpad 760xl, (Trident FB) TGUI 96xx

Problem with thinkpad 760xl, (Trident FB) TGUI 96xx

[John Bäckstrand]

I have a IBM Thinkpad 760XL, with a trident in it,
giving this from lspci -v -v:

00:03.0 VGA compatible controller: Trident Microsystems
TGUI 9660/968x/968x (rev d3) (prog-if 00 [VGA])
        Control: I/O+ Mem+ BusMaster- SpecCycle-
MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B+ ParErr-
DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Interrupt: pin A routed to IRQ 11
        Region 0: Memory at 08000000 (32-bit,
non-prefetchable) [size=4M]
        Region 1: Memory at 08400000 (32-bit,
non-prefetchable) [size=64K]
        Region 2: Memory at 08800000 (32-bit,
non-prefetchable) [size=4M]
        Expansion ROM at 000c0000 [disabled] [size=64K]

The tridentfb driver isnt working very good, the output
on screen is in some way interlaced in some odd way. I
have a .png here:
I have also not been able to get Xfree 4.2.1 working,
but that seems to be another problem, seems the
modeline isnt right. The tridentfb driver seems to be
more on course, since the screen is atleast stable, not
unsycnched "noise" as in X, only weirdly interleaved.
Any ideas? Is this 760XL in some way different from
others of the same brand, since others seem to have
better luck?

---
John Bäckstrand

Re: Problem with thinkpad 760xl, (Trident FB) TGUI 96xx

[John Bäckstrand]

> I have a IBM Thinkpad 760XL, with a trident in it,
> giving this from lspci -v -v:
>
> 00:03.0 VGA compatible controller: Trident
Microsystems
> TGUI 9660/968x/968x (rev d3) (prog-if 00 [VGA])
>         Control: I/O+ Mem+ BusMaster- SpecCycle-
> MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
>         Status: Cap- 66Mhz- UDF- FastB2B+ ParErr-
> DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR-
<PERR-
>         Interrupt: pin A routed to IRQ 11
>         Region 0: Memory at 08000000 (32-bit,
> non-prefetchable) [size=4M]
>         Region 1: Memory at 08400000 (32-bit,
> non-prefetchable) [size=64K]
>         Region 2: Memory at 08800000 (32-bit,
> non-prefetchable) [size=4M]
>         Expansion ROM at 000c0000 [disabled]
[size=64K]
>
> The tridentfb driver isnt working very good, the
output
> on screen is in some way interlaced in some odd way.
I
> have a .png here:

Forgot the link:

http://medlem.spray.se/sandos/thinkpad.jpg

The characters does seem to be solid in this jpeg, but
they have every second scanline black/ displaced.

> I have also not been able to get Xfree 4.2.1 working,
> but that seems to be another problem, seems the
> modeline isnt right. The tridentfb driver seems to be
> more on course, since the screen is atleast stable,
not
> unsycnched "noise" as in X, only weirdly interleaved.
> Any ideas? Is this 760XL in some way different from
> others of the same brand, since others seem to have
> better luck?
>
> ---
> John Bäckstrand
>

Re: Problem with thinkpad 760xl, (Trident FB) TGUI 96xx

[John Bäckstrand]

> The tridentfb driver isnt working very good

I did not get this to work, but I atleast managed to
get vesa-fb running. Vesa did not work on this machine
without UNIVBE, so I now use loadlin from a floppy to
load the kernel after Ive loaded UNIVBE, and then I use
vesafb, which seems to be working nicely, X using it
also. This should be pretty slow though. UNIVBE said
the chip had support for nearly nothing, and only
banked modes. Thats probably why the vesa-fb driver
didint work.

---
John Bäckstrand