Hi Oleg:

  We don't use the latest windows. I can see if I can use it with our 
product and give you some feedback to see if it makes a difference.
  One interesting point is that this customer was using a ATI Radeon 9200 
card with 128 MB of RAM with the generic driver and it worked fine.
  This card however was an AGP type of card as opposed to a PCI card.
  Unfortunately the new computers do not come with AGP slots anymore.
  Could memory play a role here. The ATI Radeon 7000 cards we use now only 
come with 64 MB maximum.

   -  Kevin
 



Oleg Bolshakov <community-noreply@qnx.com> 
04/05/2010 09:31 AM
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post51131@community.qnx.com


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Subject
Re: Generic driver for ATI Radeon 7000 graphic card chipset






Hi Kevin,

Can you test this issue with latest QNX Windows?

-- 
Respectfully,
Oleg

> Hello:
> 
>  In the past we have used a few different graphics cards for our
> process control software. We have been running QNX4.25G with an old
> version of QNX Windows (Version 4.20 release date 21-Feb-94. We are
> also now running our software under the new QNX Product Suite 2009.
> Everything runs quite nicely. However one of our customers has noticed
> a performance issue with the different drivers and we have confirmed
> this inour lab environment.
> 
> Some of the old drivers used  previously include gr.s3mmdb for an S3
> Trio card and  gr.scitech for an ATI Rage Pro card
> 
> When using these drivers we have noticed that the windows "screen" task
> consumes between 5-20 % of CPU usage when refreshing graphic and
> control popups. We use the old sysmon utility to monitor this. However
> when we use the gr.generic driver with ATI Radeon cards with the
> Radeon 7000 chip set we see screen usage that is between  40-80 % of
> CPU usage during refresh of graphics and control popups.This manifests
> itself into a slower refresh of graphics than with the older cards and
> drivers.
> 
> We are wondering whether there is anything that can be done with the
> gr.generic driver to improve performance or if there is an update to
> the gr.genric driver. Our file dates are :
> gr.generic 17-Aug-04   size 189328
> gr.radeon  17-Aug-04  size 116156
> 
> The generic driver is started as follows:
> 
>  /usr/bin/int10
> /etc/win/drivers/gr.generic -dradeon -B  -g 1024x768 -R60  >/dev/null
> 2>/dev/null
> 
> The older S3 driver was started as follows:
> 
> /usr/bin/int10
> /etc/win/drivers/refresh_s3 -r72,72,60,43
> /etc/win/drivers/gr.s3mmdb  -g 1024x768x256  >/dev/null 2>/dev/null
> 
> The older ATI Rage Pro driver was started as follows:
> 
> /usr/bin/int10
> /etc/win/drivers/gr.scitech  -g 1024x768x256  >/dev/null 2>/dev/null
> 
> NOTE:  The ATI Rage Pro card (gr.scitech driver) had 128MB of memory
>             while ATI Radeon cards(gr.generic)  had 64 DDR
>             ( not sure about S3 cards ( gr.s3mmdb)
>           Don't know if memory is a factor here or not.
> 
> 
> 
> 
> 
> _______________________________________________
> 
> General
> http://community.qnx.com/sf/go/post51058



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General
http://community.qnx.com/sf/go/post51131