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Re: Generic driver for ATI Radeon 7000 graphic card chipset
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04/05/2010 9:22 AM
post51131
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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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