Reason for GPS problems found! / more patches

Scott Derrick scott at
Mon Jul 21 19:38:31 CEST 2008

does it say what the two settings actually do?


Chris wrote:
> Andy Green wrote:
>> Just a heads-up there is also another relevant patch on stable tonight.
>> ~ It gives another interesting knob to twiddle about GPS performance.
> I did some tests with the new settings. My observations are based on the 
> signal strength output in AGPS-UI.
> sd_idleclk=1 and sd_drive=2:
> The strength of the gps-signal rapidly goes down, then I loose the fix 
> on my window.
> sd_idleclk=1 and sd_drive=0:
> I can't see a weakening of the gps-signal. Signal strength seems as good 
> as with sd_idleclk=0.
> I copied some (big) files to and from the card, none were corrupted, all 
> md5-sums were identical. I'm using a sandisk 4GB SDHC card.
> Thanks for the great work.
> -Chris
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