[ltp] T43p with new radeon driver crashes.

[Raanan Manor]

When i suspend with fglrx the computer just freezes. The best I could
get was that the screen blanks and the suspend led blinks for ever. 

I have tried all the solutions I found on the net and I can tell you,
there are quite allot of them out there, including the thinkwiki pages. 

Any way, as the radeon drivers are open source and I use the latest from
git I got this suggestion - 

------- Comment #12 from agd5f@yahoo.com  2007-08-31 12:12 PST -------
does it help if you remove this block of code from radeon-driver.c:

if (info->IsMobility) {
    if (xf86ReturnOptValBool(info->Options, OPTION_DYNAMIC_CLOCKS,
FALSE)) {
        RADEONSetDynamicClock(pScrn, 1);
    } else {
        RADEONSetDynamicClock(pScrn, 0);
    }
}

rebuild and install the updated driver and then fully shut down the
laptop and
power it off before powering it back on again.

if that doesn't help, also try removing the following code from
radeon_driver.c:

if (IS_R300_VARIANT || IS_RV100_VARIANT)
    RADEONForceSomeClocks(pScrn);

and repeat.

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

Open source and the developers behind it are great aren't they ? :-) 

I'll try it as I need the on-the fly switching between video outputs and
desktops which I get with those drivers. 

About the *GPU temperature* I try to control it with the tp-fancontrol
script which controls the fan from the wiki pages. I did no know that
fglrx controled the GPU power states based also upon the GPU
temperature. 

can't I control the GPU power states with acpi ?  If yes, I could change
the tp-fancontrol script to control those power states also based on the
GPU temp. 


Raanan Manor




On Fri, 2007-08-31 at 03:37 -0400, Jiang Qian wrote:
> > O, 
> > 
> > So i am left with three options - 
> > 
> > 1) use fglrx and loose suspend-to-ram. 
> Somehow suspend-to-ram works for my T43 with fglrx, very persistently, 
> over hundreds of suspend-resume cycle across over a hundred days. It 
> seems that fglrx has had serious regressions over the releases. I have 
> 8.36.5, and didn't update because the newer releases don't seem to add 
> any new features.  However, my video chipset in T43 is X300, not FireGL 
> as presumably in T43p, I don't know whether that makes a difference.
> 
> What's your problem with suspend-to-ram and fglrx? Does it not work at 
> all?  Or  does it have occasional crashes? I presume that you have 
> checked out the thinkwiki page 
> http://thinkwiki.org/wiki/Problems_with_fglrx#Troubles_using_software_suspend
> According to the table, people seem to have success with T43.
> 
> For me, one thing cause me to run fglrx on is their power management 
> feature.  While the open source radeon driver has: DynamicClocks as well 
> as rovclock, in my experience the fglrx set powerstate control massively 
> reduce the power consumption and *GPU temperature*, more effective than 
> the open source solutions. I of course don't blame open source community 
> for this, but practically, it makes quite a difference for me.
> 
> Jiang
> > 
> > 2) use the radeon driver and get freezes. 
> > 
> > 3) loose the 3D desktop. 
> > 
> > 
> > The choice between bad and worse.
> > 
> > 
> > Raanan. 
> > 
> >  
> > 
> > -- 
> > The linux-thinkpad mailing list home page is at:
> > http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad