[ltp] Thinkpad T21 Accelerated video problem

[Efthym]

Hi

On Wed, 08 Mar 2006 10:36:17 -0500, Alex Deucher <alexdeucher@gmail.com>  
wrote:

> Sorry for the top post.  try:
> Option "DmaMode" "None"
>

I tried "DmaMode" "None" and "Any" but it doesn't seem to work. Xorg.0.log  
says:

(WW) SAVAGE(0): Option "DmaMode" is not used
(WW) SAVAGE(0): Option "BusType" is not used

I'm using xorg 6.8.2 on FC4. I tried both the default driver and Tims but  
both have the same result.
Any suggestions ?

Efthym


>
> ---------- Forwarded message ----------
> From: harry wert <hwert@earthlink.net>
> Date: Mar 8, 2006 7:48 AM
> Subject: Re: [ltp] Thinkpad T21 Accelerated video problem
> To: linux-thinkpad@linux-thinkpad.org
>
>
>  On Wed, 2006-03-08 at 00:35 -0500, Alex Deucher wrote:
>
>  On 3/7/06, harry wert <hwert@earthlink.net> wrote:
>> Hello, I have a Thinkpad T21 running Ubuntu Dapper Drake. Everything is
>> working extremely well except I cannot find a repeatable combination of
>> video driver settings which will survive a reboot or cold start. When
>> working, performance is an acceptable increase from 70fps to 355fps. The
>> internal video card is a Savage /IX-MV, with a chip ID of 8c12 which
>> contains 8192kb of video memory. The accelerated video will not run in  
>> the
>> 24 depth mode because it needs more than 8092kb of memory. I am able to
>> coax it tho run in the 16 depth mode with a lot of experimentation but  
>> all
>> is lost on reboot or a cold start. When it fails to start I experience a
>> hard freeze which will require a power off shutdown to free up. On the  
>> next
>> boot the screen appears to be attempting to find a workable video mode  
>> but
>> will ultimately lock into a dark screen and a hard freeze. It is then
>> necessary to boot up in the recovery mode and change the video depth  
>> from 16
>> back to 24 to restore normal (no video acceleration) video operation. I
>> have been searching with Google and reading whatever I can locate on  
>> this
>> subject but seem to have struck out!
>>
>> The only video tool I can find to use is xvidtune which is not easy to  
>> use.
>> Two questions:
>>
>> 1. Are there better tools out there for video tuning and adjustment  
>> such as
>> SAX on SuSE?
>>
>> 2. Does anyone have a working xorg with acceleration on a T21 and  
>> Ubuntu?
>>
>> This is not a crisis - just a curiosity as I don't usually run many
>> programs which require video acceleration.
>>
>> Thanks in advance for any comments and/or guidance in this matter.
>>
>
> Try setting:
> Option "BusType" "PCI"
> AGP hasn't worked reliably on thinkpads with savages in a while.
>
> Alex
>
>> Harry Wert
>> Physicist
>>
>>
>
>  Thanks Alex.  I incorporated your suggestion and major progress has
> been achieved.  Now xorg reliably boots into the 16 depth mode and no
> errors are reported in the xorg.0.0 log.  Unfortunately when I attempt
> to use 3D using glxgears the program attempt to start but cannot
> apparently find the correct mode for several seconds, then stops and
> freezes the system into a hard lock.  Reboot restores the screen for
> normal 16 depth again.  Another program I use for testing "TORCS" goes
> to a full-scale dark screen but does not freeze the system.
> Consequently I can go to another console and kill the process to
> restore normal operation.  I'll continue to investigate as I have time
> and report back if I find a solution.
>
>  Thanks for your help.
>
>  Harry Wert
>  Physicist
>
>  ===================
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