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-   Maemo 5 / Fremantle (https://talk.maemo.org/forumdisplay.php?f=40)
-   -   [HOWTO]Watch 720p videos on n900 [09.12.2011 VIDEOCALL WORKS] (https://talk.maemo.org/showthread.php?t=77695)

don_falcone 2011-10-10 16:21
Re: [HOWTO]Watch 720p videos on n900
 
Quote:
Originally Posted by freemangordon (Post 1106253)
Agree, definitely we run out of bandwith. But AFAIK hardware is designed to support 720p, maybe it is the memory which is underclocked. On the other hand preview runs 1280x720@30 fps smoothly, so it seems it is not camera bus which is problematic. Most probably it s the bus between memory and DSP (DSP uses DMA). Didn't have time to look at the issue these days.
Freemangordon, somebody explained IIRC in an old thread regarding video stuttering some things about DSP cache / bus bandwidth. Especially around post #83...

hadjistyllis 2011-10-10 16:23
Re: [HOWTO]Watch 720p videos on n900
 
Quote:
Originally Posted by patlak (Post 1106626)
My questions still stands, why didn't it before? I have been running starving stable for well over 7 months.
Maybe is due to KP49. before KP45 smartreflex give me reboots but after KP45 works ok under 800MHZ.
Check if works on other profiles.

m4r0v3r 2011-10-10 16:33
Re: [HOWTO]Watch 720p videos on n900
 
Quote:
Originally Posted by freemangordon (Post 1106386)
Not preserving premissions is not a problem, it is OK in that way.
And it isn't overheating,it is the watchdog that kicks in, same as when decompressing easy debian image. Today I will try to find a time to upload a new script which will setup i/o scheduler in such a way, that no reboot to occur. In the meantime - did you copy/paste the commands from EDIT section before executing the script?
yeah it still rebooted. i might try it in R&D mode. At the moment it has extracted nothing to the root folder so basically its backed up my original files and replaced them with nothing i think. Its the only way to explain my files saying error has occurred when playing

patlak 2011-10-10 17:44
Re: [HOWTO]Watch 720p videos on n900
 
Quote:
Originally Posted by hadjistyllis (Post 1106630)
Maybe is due to KP49. before KP45 smartreflex give me reboots but after KP45 works ok under 800MHZ.
Check if works on other profiles.
Everything is ok without the 720p mod while running KP49. I have no clue why the 720p mod requires much higher voltages compared to a stock dsp to play the same movie (not 720p).

Estel 2011-10-10 20:14
Re: [HOWTO]Watch 720p videos on n900
 
patlak, why all the fuzz? Just check it *without* any undervolting. If it works, it's undervolting fault, and we can probably guess why it worked before on such voltage. If it won't work even on high voltages, it's something else. Better to filter out as many variants as possible ;)

/Estel

patlak 2011-10-10 20:59
Re: [HOWTO]Watch 720p videos on n900
 
Quote:
Originally Posted by Estel (Post 1106741)
patlak, why all the fuzz? Just check it *without* any undervolting. If it works, it's undervolting fault, and we can probably guess why it worked before on such voltage. If it won't work even on high voltages, it's something else. Better to filter out as many variants as possible ;)

/Estel
Curiosity is a bjtch :D :D :D

Estel 2011-10-10 22:22
Re: [HOWTO]Watch 720p videos on n900
 
BTW, freemangordon, is there any way to overclock (or de-underclock ;) ) memory?

patlak 2011-10-10 22:45
Re: [HOWTO]Watch 720p videos on n900
 
Quote:
Originally Posted by Estel (Post 1106806)
BTW, freemangordon, is there any way to overclock (or de-underclock ;) ) memory?
When we do that, we should go after the GPU next :D

patlak 2011-10-10 23:17
Re: [HOWTO]Watch 720p videos on n900
 
@freemangordon

With increased voltages after 2 hours of testing.

Code:
30142.447143] ***** DSPMMU FAULT ***** IRQStatus 0x2
[30142.447174] ***** DSPMMU FAULT ***** faultAddr 0x20ece140
[30142.447204] WMD_DEH_Notify: ********** DEVICE EXCEPTION **********
[30142.447204] WMD_DEH_Notify: DSP_MMUFAULT,errInfo = 0x0
[30142.447235] WMD_DEH_Notify: DSP_MMUFAULT, High Address = 0x20ec
[30142.447235] WMD_DEH_Notify: DSP_MMUFAULT, Low Address = 0xe140
[30142.447235] WMD_DEH_Notify: DSP_MMUFAULT, fault address = 0x20ece140
[30142.447387] DSPTrace:DSP MMU FAULT currtask:0x2025f9d4

m4r0v3r 2011-10-10 23:32
Re: [HOWTO]Watch 720p videos on n900
 
we are in R&D mode this ****er cant turn itself anymore, time to run the script :D

nope that just froze up and crashed lol

well i got it to work through the pc method. although if i fail to record for whatever reason I will fail to playback for no reason until i restart the device.


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