Support and General Use > User Interface and Voice

Unresponsive Sansa with Frequency Scaling

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Vortex:
Hi everyone,

unfortunately the enabling of frequency scaling causes menu navigation to be extremely slow and unresponsive on my Sansa, especially when playback is not running. I guess it's because the CPU is running at a low frequency when playback is not running, causing menu navigation to be unresponsive.

Navigating through the menus is a real pain right now, especially when scrolling through large lists. Maybe the frequency scaling code should be changed to restore the CPU to normal frequency while the scrollwheel is being used or while the backlight is active or something like that. Another idea would be to power up the CPU while you are in a menu screen with backlight on and set it to "economic" mode once you return to the WPS or the backlight turns off.

Would it be possible to change the frequency scaling code like and should I file a bug report on this?

cpchan:

--- Quote from: Vortex on July 26, 2007, 09:29:43 AM ---unfortunately the enabling of frequency scaling causes menu navigation to be extremely slow and unresponsive on my Sansa, especially when playback is not running. I guess it's because the CPU is running at a low frequency when playback is not running, causing menu navigation to be unresponsive.
--- End quote ---

Which build are you using? "Frequency Scale" was disabled again a while back and a new "Scrollwheel Acceleration" code was just introduced a couple of days ago. My e280 have been very responsive.

Charles

Llorean:
Actually, frequency scaling is back in, but I find it quite responsive still. Not perfect, but that won't happen until dual core is working.

cpchan:

--- Quote from: Llorean on July 27, 2007, 12:10:21 AM ---Actually, frequency scaling is back in, but I find it quite responsive still. Not perfect, but that won't happen until dual core is working.

--- End quote ---

Ah, thanks for the info, Llorean. Just check the SVN log- it just got back in.

Charles

Vortex:

--- Quote ---My e280 have been very responsive.
--- End quote ---
Mine too, until frequency scaling was re-enabled. :(


--- Quote ---Actually, frequency scaling is back in, but I find it quite responsive still.
--- End quote ---

I wonder if there is something wrong with mine then, because right now the speed is absolutely unacceptable. It works better when playback is running but it is very slow when playback is stopped and the CPU is running at low speed.


--- Quote ---Not perfect, but that won't happen until dual core is working.
--- End quote ---
What about the suggestions I made in my first post. Would they not work?

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