MobileRead Forums - View Single Post - Kindle 3.1 software for Kindle 2, 2i, & DX (under construction)

dpavlin · 05-14-2011, 08:10 AM

Thanks a lot yifanlu, beta-3 works fine on DXG. Even rotation sensor works -- something I didn't really expected.

PDF contrast options and WebKit browsers where my motivation for trying this out, and I very grateful for all hard effort you and others on this thread made so I can get something which Amazon doesn't provide.

Interesting thing about sound ticks is that they continue even when kindle is suspended. TTS also have unusual pauses on each comma or period (, or .) and seems a little bit too fast, which seems like sample rate is wrong somewhere. Do you have any helpful tips where to look?

Update: after first page or so, TTS stops having pauses but still ticks. It also works better with male voice than with female with is stored on /mnt/us and uses fuse filesystem for access which introduces additional overhead, I guess.

I can see error messages in /var/log/messages about volume:

Code:

110514:150149 audioServer[6886]: E def:mo::Failed to set volume (No master output)

but changing volume using keys DOES work!

I also noted that free displays

Code:

[root@kindle log]# free
Unknown HZ value! (86) Assume 100.

which might be part of problem is other tools also assume HZ=100, alltough I can see that we are not using HZ:

Code:

[root@kindle log]# gzip -cd /proc/config.gz | grep HZ
CONFIG_NO_HZ=y
CONFIG_HZ=300

Also, we all should have in mind that DXG has only 128 Mb or RAM as compared to K3G which has 256 Mb. So, expecting everything to work perfectly is somewhat optimistic. I might try to compile compcache which Android devices uses to replace swap but it does take a bit of precious memory to provide compressed swap and uses CPU time.

05-14-2011, 08:10 AM	#147
dpavlin Connoisseur Posts: 61 Karma: 116628 Join Date: May 2011 Location: Zagreb, Croatia Device: Kindle K3G and DXG	Thanks a lot yifanlu, beta-3 works fine on DXG. Even rotation sensor works -- something I didn't really expected. PDF contrast options and WebKit browsers where my motivation for trying this out, and I very grateful for all hard effort you and others on this thread made so I can get something which Amazon doesn't provide. Interesting thing about sound ticks is that they continue even when kindle is suspended. TTS also have unusual pauses on each comma or period (, or .) and seems a little bit too fast, which seems like sample rate is wrong somewhere. Do you have any helpful tips where to look? Update: after first page or so, TTS stops having pauses but still ticks. It also works better with male voice than with female with is stored on /mnt/us and uses fuse filesystem for access which introduces additional overhead, I guess. I can see error messages in /var/log/messages about volume: Code: 110514:150149 audioServer[6886]: E def:mo::Failed to set volume (No master output) but changing volume using keys DOES work! I also noted that free displays Code: [root@kindle log]# free Unknown HZ value! (86) Assume 100. which might be part of problem is other tools also assume HZ=100, alltough I can see that we are not using HZ: Code: [root@kindle log]# gzip -cd /proc/config.gz \| grep HZ CONFIG_NO_HZ=y CONFIG_HZ=300 Also, we all should have in mind that DXG has only 128 Mb or RAM as compared to K3G which has 256 Mb. So, expecting everything to work perfectly is somewhat optimistic. I might try to compile compcache which Android devices uses to replace swap but it does take a bit of precious memory to provide compressed swap and uses CPU time. Last edited by dpavlin; 05-14-2011 at 09:07 AM.