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Re: can't use windows with GoBack?


Lester,

Lester Ingber wrote:

Harold:

... interesting that you should ask about the hardware.  The GoBack tech
said that most of the problems they are having is with some kinds of hardware.

Yes, my Thinkpad A31 p has an ATI Mobility Fire GL 7800 graphics card.

Well then, the first thing for you to check is if "XWin -engine 1" has acceptable performance. If not, try "XWin -fullscreen". The first of these tests will use the GDI-based bit block transfer function, while the latter will use the DirectDraw bit block transfer function. Please report on the performance of both tests.


The ATI 8500 series had some versions of the driver that had terrible DirectDraw performance. This was fixed by a driver update, but it was very difficult to get the driver update to actually install properly. If you have DirectDraw driver problems then you will likely notice problems in other DirectDraw-based apps, such as those that play video like Window Media Player or Real Player. Your GDI-based performance (-engine 1) should be unaffected by a problem with the DirectDraw driver.

For more information on how ATI botched their drivers, and for a little info on how changes to certain system DLLs can affect performance, see the following:

http://sources.redhat.com/ml/cygwin-xfree/2002-12/msg00049.html

Harold


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