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Old 08-16-03, 03:18 AM   #1
Pitabred
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Default Very strange SiS/Ti4200 problems

I'm not sure if it's a crappy motherboard or what, but my AGP is not enabled. When I set it to be enabled, the screen either a) gets somewhat garbled junk on CRT out or b) just does nothing. The console is still responsive, so I can hit ctrl+alt+del and kill X, then blind type "shutdown -r now"

I have an ECS L7S7A2 mobo, with an SiS 746 northbridge, a GF4 Ti4200, Slackware 9 running 2.4.21/2.4.22-pre10/2.6.0-test3

[edit]
Newest mobo BIOS.

Interesting new development: Seems that AGP corrupts one display (the DVI with the converter, not the CRT) in Windows XP as well. Newest NVidia and AGP drivers. Very strange.

~$ cat /proc/driver/nvidia/agp/card
Fast Writes: Supported
SBA: Supported
AGP Rates: 4x 2x 1x
Registers: 0x1f000217:0x00000000

~$ cat /proc/driver/nvidia/agp/host-bridge
Host Bridge: Silicon Integrated Systems [SiS] 746 Host
Fast Writes: Not Supported
SBA: Supported
AGP Rates: 4x 2x 1x
Registers: 0x1f000207:0x00000000

~$ cat /proc/driver/nvidia/cards/0
Model: GeForce4 Ti 4200
IRQ: 11
Video BIOS: 04.25.00.30.00
Card Type: AGP

~$ cat /proc/driver/nvidia/version
NVRM version: NVIDIA Linux x86 nvidia.o Kernel Module 1.0-4496 Wed Jul 16 19:03:09 PDT 2003
GCC version: gcc version 3.2.2

[/edit]

I custom compiled my kernel, but I've tried generic installs, too, and it is still the same problem.

Here are the relevant parts of the logs:

Good log (no agp, X starts up):
...
(WW) NVIDIA(0): Failed to verify AGP usage
(II) NVIDIA(0): Setting mode "1600x1200,1600x1200"
(II) NVIDIA(0): Using the NVIDIA 2D acceleration architecture
(==) NVIDIA(0): Backing store disabled
(==) NVIDIA(0): Silken mouse enabled
(II) Loading extension NV-GLX
(II) Loading extension NV-CONTROL
(II) Loading extension XINERAMA
(==) RandR enabled
(II) Initializing built-in extension MIT-SHM
(II) Initializing built-in extension XInputExtension
(II) Initializing built-in extension XTEST
(II) Initializing built-in extension XKEYBOARD
(II) Initializing built-in extension LBX
(II) Initializing built-in extension XC-APPGROUP
(II) Initializing built-in extension SECURITY
(II) Initializing built-in extension XINERAMA
(II) Initializing built-in extension XFree86-Bigfont
(II) Initializing built-in extension RENDER
(II) Initializing built-in extension RANDR
(II) [GLX]: Initializing GLX extension
(**) Option "Protocol" "IMPS/2"
(**) Mouse1: Protocol: "IMPS/2"
(**) Option "CorePointer"
(**) Mouse1: Core Pointer
(**) Option "Device" "/dev/psaux"
(**) Option "Buttons" "5"
(**) Option "Emulate3Buttons" "off"
(**) Option "ZAxisMapping" "4 5"
(**) Mouse1: ZAxisMapping: buttons 4 and 5
(**) Mouse1: Buttons: 5
(II) Keyboard "Keyboard1" handled by legacy driver
(II) XINPUT: Adding extended input device "Mouse1" (type: MOUSE)
(II) XINPUT: Adding extended input device "NVIDIA Event Handler" (type: Other)
(II) Mouse1: ps2EnableDataReporting: succeeded

Bad log:
...
(II) NVIDIA(0): AGP 4X successfully initialized
(II) NVIDIA(0): Setting mode "1600x1200,1600x1200"

And it ends there... locks. Doesn't matter how long I leave it, log stays the same. I'm trying again soon with -- -logverbose 5. I can kill X with ctrl+alt+del, then restart.

Any ideas? I've tried with less than my usual 1GB of RAM, turned off ACPI... anything else?

I'd love to get AGP working... I bought this board/processor because I wanted a better gaming rig than my 1.2GHz, and PCI mode is slow as hell.

Last edited by Pitabred; 08-17-03 at 02:11 AM.
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Old 08-17-03, 01:59 AM   #2
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*bump*

I know it's rude, but I'd like to at least be sure someone official has looked at this. I tend to not need help unless it's a real issue, and I'm just not sure where the issue lies, with the mobo drivers, or NVidia, or what.
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Old 08-18-03, 07:00 PM   #3
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Anyone? Anyone at all?
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Old 08-19-03, 11:36 AM   #4
dan pauls
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Just to acknowledge that a similar configuration/problem exists elsewhere.

I have an ASROCK K7S8X MB with the SiS 746 north bridge, the Ti4200 (8x AGP), and RH9. While the card works w/o AGP - I can't get AGP to work with either the latest nvidia drivers (which don't mention SiS 746 AGP support) or the 2.4.21 kernel AGPGART module (which does have support for the SiS 746) - not at the same time, of course.

I will compare your results to mine and see if I can make any progress. I really hate having to boot into WinXP to get decent frame rates in UT2003.
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Old 08-19-03, 10:04 PM   #5
energyman76b
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Your problem is, that AGP 3.0 is NOT supported by Linux 2.4.x

If you have a AGP 2.0 Card in a 3.0 board or vice versa, everything is fine, but a 3.0 card in a 3.0 board is a no goer.

There a two possible solutions a) nvidia gives us SiS-mobo users a working AGPGART b) try Linux 2.6.0-testx.

Glück Auf
Volker
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Old 08-19-03, 10:43 PM   #6
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I was trying to use AGP 4x, which is AGP2.0
Still didn't work.
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Old 08-19-03, 11:19 PM   #7
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of course it tries to use 4x (2.0), because it is the highest mode it knows, and fails, because of changed registers.
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Old 08-19-03, 11:36 PM   #8
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The 2.4.22-pre release is supposed to have support for the 746 chipset though. And the card I have is a Ti4200, 4x AGP max I believe.

http://lwn.net/Articles/39129/

But you might be on to something... too bad I can't get my sound to work under the 2.6 kernel :-/
Or the video drivers
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Old 08-19-03, 11:43 PM   #9
energyman76b
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Quote:
Originally posted by Pitabred
The 2.4.22-pre release is supposed to have support for the 746 chipset though. And the card I have is a Ti4200, 4x AGP max I believe.

http://lwn.net/Articles/39129/

But you might be on to something... too bad I can't get my sound to work under the 2.6 kernel :-/
Or the video drivers
If you mean that:
Fix SiS746 AGP merge (Volker Armin Hemmann)

that's me ;o)

So I know what I am talk. 'They' (Dave Jones if I remember right) said, that the AGP infrastructure of 2.4 does not and will not support AGP 3.0

This three primitive lines I copied in only gives AGP 2.0 support.. if you plug in a AGP 3.0 card you are screwed.


edit: Initial SiS 746 AGP (not for 8x yet) (Volker Hemmann)

;o)
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Old 08-19-03, 11:51 PM   #10
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Ahhh. Thanks for clearing that up I was somewhat confused as to why it would detect it and not work.
Oh well. Killed the mobo, getting a new one. Won't make the same mistake

/me kicks himself several times.

Why weren't you here yesterday?
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Old 08-19-03, 11:54 PM   #11
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I have stayed for some time on the 'ocworkbenchforum' ;o)
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