Messages in this thread | | | Date | Thu, 26 Apr 2001 03:44:41 +0200 | From | Petr Vandrovec <> | Subject | Re: Matrox FB console driver |
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On Tue, Apr 24, 2001 at 06:19:31AM -0500, Andy Carlson wrote: > time prime before x > real 1m23.535s > user 0m40.550s > sys 0m42.980s > > time prime in X > real 0m42.835s > user 0m41.180s > sys 0m1.710s
There can be two reasons: (1) You are using matrox's mga module. They have 'program chip core to production level frequency instead of bios safe one' in their changelog. Although difference 100% makes (2) more probably. (2) matroxfb does not try to activate any AGP transfer mode. Maybe some X driver tries and succeeds.
You can try:
time dd if=/dev/zero of=/dev/fb0 bs=1M count=8
before X and after X. If times are same, then it is chip core frequency. If times are 2:1, it is either chip memory freqency, or AGP... Petr Vandrovec vandrove@vc.cvut.cz
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