-- Le (On) 2010-08-26 -0500 à (at) 15:15:39 Stephen Isard écrivit (wrote): --

> Hello,
> 
> After upgrading my kernel from 2.6.18-164.15.1.el5 to 2.6.18-194.8.1.el5,
>  I
> found that my machine would go through periods of running very slowly wit
> h
> the mouse moving jerkily. Top showed 98%+ wait state, although nothing wa
> s
> going on.  The machine is an HP 64 bit dx5150 with 3G of memory and X1300
> 
> graphics.  I have been running the proprietary ATI fglrx driver because i
> t
> appeared to be the only way of getting a pseudocolor visual for the xwave
> s
> speech processing package, whose graphics are based on xview.  I've been
> using it for several years and not seen anything like this before.
> 
> I noticed that hald-addon-storage was occasionally using large amounts of
> 
> cpu time polling my empty dvd drive, so I killed that process, but that
> didn't solve the problem.  Then I found that the xwaves display was showi
> ng
> the wrong colors and scaling was distorted.
> 
> Reverting to the old kernel makes everything work normally again.  I susp
> ect
> that it's X that is the problem, although I don't know for sure.  Nothing
> 
> interesting shows up in the xorg log or any other log that I can find.
> 
> Has anyone else seen symptoms like this?  Any hints on what to try?  In
> particular, is there a way of finding out what the cpu is waiting on when
>  it
> is spending all its time waiting?
> 

       Hello,

       what says lspci ?

       I  had  the same problem with several dell optiplex 740 (  see
       the  thread  "problem   with  kernel   2.6.18-194.3.1.el5"  on
       20100527) with 'nvidia chipset and nvidia graphic' and 'nvidia
       chipset and ati graphic'.

       To solve that I have to :

       1) flash the bios

       2)  put  'options   snd-hda-intel  index=0   enable_msi=0'  in
       /etc/modprobe.conf ( thanks to Akemi Yagi)

       3)  'yum  --enablerepo=sl-contrib install nvidia-x11-drv'  for
       those  with  nvidia graphic but do nothing for those with  ATI
       graphics.   I tried to install ati-x11-drv from the sl-contrib
       repo  but that resulted with two X server running, one of them
       eating 100% cpu.



-- 
                 Best regards,
                               Robert FRANCHISSEUR

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| Robert FRANCHISSEUR                                               |
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