Change Screensaver Timeout (how long before sleeps)

[inameiname]

These are simple Launchpad scripts which change when the Kindle goes to sleep and the screensaver on the Kindle starts. The default is '10 mins'.

Here are my scripts. I actually have several set to Launchpad shortcuts, from 15 minutes to 120 minutes:

screensaver_timeout.ini

[Actions]
; Screensaver Timeout
S A = !source /mnt/us/launchpad/screensaver_timeout_15.sh
S B = !source /mnt/us/launchpad/screensaver_timeout_20.sh
S C = !source /mnt/us/launchpad/screensaver_timeout_30.sh
S D = !source /mnt/us/launchpad/screensaver_timeout_45.sh
S E = !source /mnt/us/launchpad/screensaver_timeout_60.sh
S F = !source /mnt/us/launchpad/screensaver_timeout_90.sh
S G = !source /mnt/us/launchpad/screensaver_timeout_120.sh
S X = !source /mnt/us/launchpad/screensaver_timeout_reset.sh

screensaver_timeout_15.sh (no need to show the 20, 30, 45, etc ones)

#!/bin/sh

mntroot rw

# Based on version 0.01 (20090724) ebs
V="0.02.N"

# Default timeout in seconds
TIMEOUT=900

# Log somewhere out of the way
mkdir /mnt/us/sstimeout
L=/mnt/us/sstimeout/screensaver-timeout_install.log

# Result codes
OK=0
ERR=1

echo >> ${L}
echo "install: screensaver-timeout v${V}, $(date)" >> ${L}

# Give user a way to override timeout
U=/mnt/us/screensaver-timeout
if [ -f ${U} ] ; then
T=$(head -n 1 ${U} | sed 's/[^0-9]//g')
if [ "${T}" -gt 59 ] ; then
echo "Using user specified timeout ${T} from ${U}" >> ${L}
TIMEOUT=${T}
fi
fi

# FW 3.X
# if [ -f /etc/kdb/system/daemon/powerd/t1_timeout ] ; then
# F=/etc/kdb/system/daemon/powerd/t1_timeout

# FW 3.3
if [ -f /etc/kdb.src/luigi/system/daemon/powerd/t1_timeout ] ; then
F=/etc/kdb.src/luigi/system/daemon/powerd/t1_timeout

# Make a backup just in case
[ -f /mnt/us/sstimeout/t1_timeout ] || cp -p ${F} /mnt/us/sstimeout/t1_timeout 2>> ${L} || exit ${ERR}

OT=$(tail -n 1 ${F})

if [ -n "${OT}" ] ; then
if [ "${OT}" != "${TIMEOUT}" ] ; then
echo "Replacing sleep timeout (${OT} -> ${TIMEOUT})" >> ${L}
(echo -en "RG002\n40\n<DATA>\n${TIMEOUT}" > ${F}) 2>> ${L} || exit ${ERR}
else
echo "Timeout is already set to ${TIMEOUT}, skipping..." >> ${L}
fi
else
echo "Couldn't find current timeout, aborting" >> ${L}
exit ${ERR}
fi
else
# FW 2.X
F=/etc/powerd.conf

# Make a backup just in case
[ -f /mnt/us/sstimeout/powerd.conf ] || cp -p ${F} /mnt/us/sstimeout/powerd.conf 2>> ${L} || exit ${ERR}

K="t1_timeout:"
OT=$(grep "^${K}" ${F} | cut -b 13-)
if [ -n "${OT}" ] ; then
if [ "${OT}" != "${TIMEOUT}" ] ; then
echo "Replacing sleep timeout (${OT} -> ${TIMEOUT})" >> ${L}
sed -i -e "s/^\(${K}\).*$/\1 ${TIMEOUT}/" ${F} 2>> ${L} || exit ${ERR}
else
echo "Timeout is already set to ${TIMEOUT}, skipping..." >> ${L}
fi
else
echo "Addding sleep timeout (${TIMEOUT})" >> ${L}
(echo "${K} ${TIMEOUT}" >> ${F}) 2>> ${L} || exit ${ERR}
fi
fi

echo "Done!" >> ${L}
/etc/init.d/powerd restart

mntroot ro

exit ${OK}

screensaver_timeout_reset.sh

#!/bin/sh

mntroot rw

# Based on version 0.01 (20090724) ebs
V="0.02.N"

# Default timeout in seconds
TIMEOUT=600

# Log somewhere out of the way
mkdir /mnt/us/sstimeout
L=/mnt/us/sstimeout/screensaver-timeout_install.log

# Result codes
OK=0
ERR=1

echo >> ${L}
echo "install: screensaver-timeout v${V}, $(date)" >> ${L}

# Give user a way to override timeout
U=/mnt/us/screensaver-timeout
if [ -f ${U} ] ; then
T=$(head -n 1 ${U} | sed 's/[^0-9]//g')
if [ "${T}" -gt 59 ] ; then
echo "Using user specified timeout ${T} from ${U}" >> ${L}
TIMEOUT=${T}
fi
fi

# FW 3.X
# if [ -f /etc/kdb/system/daemon/powerd/t1_timeout ] ; then
# F=/etc/kdb/system/daemon/powerd/t1_timeout

# FW 3.3
if [ -f /etc/kdb.src/luigi/system/daemon/powerd/t1_timeout ] ; then
F=/etc/kdb.src/luigi/system/daemon/powerd/t1_timeout

# Make a backup just in case
[ -f /mnt/us/sstimeout/t1_timeout ] || cp -p ${F} /mnt/us/sstimeout/t1_timeout 2>> ${L} || exit ${ERR}

OT=$(tail -n 1 ${F})

if [ -n "${OT}" ] ; then
if [ "${OT}" != "${TIMEOUT}" ] ; then
echo "Replacing sleep timeout (${OT} -> ${TIMEOUT})" >> ${L}
(echo -en "RG002\n40\n<DATA>\n${TIMEOUT}" > ${F}) 2>> ${L} || exit ${ERR}
else
echo "Timeout is already set to ${TIMEOUT}, skipping..." >> ${L}
fi
else
echo "Couldn't find current timeout, aborting" >> ${L}
exit ${ERR}
fi
else
# FW 2.X
F=/etc/powerd.conf

# Make a backup just in case
[ -f /mnt/us/sstimeout/powerd.conf ] || cp -p ${F} /mnt/us/sstimeout/powerd.conf 2>> ${L} || exit ${ERR}

K="t1_timeout:"
OT=$(grep "^${K}" ${F} | cut -b 13-)
if [ -n "${OT}" ] ; then
if [ "${OT}" != "${TIMEOUT}" ] ; then
echo "Replacing sleep timeout (${OT} -> ${TIMEOUT})" >> ${L}
sed -i -e "s/^\(${K}\).*$/\1 ${TIMEOUT}/" ${F} 2>> ${L} || exit ${ERR}
else
echo "Timeout is already set to ${TIMEOUT}, skipping..." >> ${L}
fi
else
echo "Addding sleep timeout (${TIMEOUT})" >> ${L}
(echo "${K} ${TIMEOUT}" >> ${F}) 2>> ${L} || exit ${ERR}
fi
fi

echo "Done!" >> ${L}
/etc/init.d/powerd restart

mntroot ro

exit ${OK}

I used the code by pilotdrh2003, found here: https://www.mobileread.com/forums/sho...postcount=1210, and, thanks to WS64, I altered it a small bit (so it goes to the appropriate directory on firmware 3.3 (uncomment the 3.X and comment the 3.3 section if required). Here, there are Launchpad shortcuts you can use to do it. Easy peasy. So far so good. If you have any problems, feel free to share.

Note: if you have a /mnt/us/screensaver-timeout file with a custom screensaver timeout (in seconds), it will override whatever Launchpad shortcut time you use when you run one of the shortcuts.

[ixtab]

Just guessing around...

If it's really the sed command failing (for whichever reason), try this instead of copying and then editing in place.

sed -e 's/600/900/' /etc/kdb.src/luigi/system/daemon/powerd/t1_timeout.bkp > /etc/kdb.src/luigi/system/daemon/powerd/t1_timeout

Also, you might want to try "sed -i -e 's/.../'".

[inameiname]

Originally Posted by ixtab

Just guessing around...

If it's really the sed command failing (for whichever reason), try this instead of copying and then editing in place.

sed -e 's/600/900/' /etc/kdb.src/luigi/system/daemon/powerd/t1_timeout.bkp > /etc/kdb.src/luigi/system/daemon/powerd/t1_timeout

Also, you might want to try "sed -i -e 's/.../'".

Thanks for the suggestion, unfortunately it doesn't work either.

I didn't try "sed -i -e 's/.../'" yet. What would that do, and how would I write it in this case?

[ixtab]

Originally Posted by inameiname

Thanks for the suggestion, unfortunately it doesn't work either.

I didn't try "sed -i -e 's/.../'" yet. What would that do, and how would I write it in this case?

It's actually just the long form of your command, i.e. explicitly saying "the s/.../ part is the expression to be evaluated". try sed --help on your device, you'll find the info there. I actually wasn't even aware that one could omit the "-e".

Anyway, I just ran this on the device, and sed is working as it should.

[root@kindle tmp]# echo 12345600789 > test.txt
[root@kindle tmp]# sed -e 's/600/900/' test.txt 
12345900789

I looked at your code again, and there is something fishy: if the backup file doesn't exist, it is created from the current configuration. It doesn't necessarily contain "600", though. So maybe this is why it's failing.

I would suggest to rewrite the thing to a simpler and "less dangerous" variant, something like:

if [ -f /etc/kdb.src/luigi/system/daemon/powerd/t1_timeout.TEMPLATE ]
then
	sed -e 's/_TIMEOUT_/900/' /etc/kdb.src/luigi/system/daemon/powerd/t1_timeout.TEMPLATE > /etc/kdb.src/luigi/system/daemon/powerd/t1_timeout
	/etc/init.d/powerd restart
fi
exit

You would create the TEMPLATE file exactly once (maybe on installation, whatever), and instead of putting some exact number in there, put _TIMEOUT_ in the respective place. This is the pattern that'll be replaced. I also suggest not to duplicate the logic over 5 files, but create it once, and parameterize it... Along the lines of "set_timeout.sh 900". Instead of hard-coding the value, you'd just use $1 in the script.

[inameiname]

Originally Posted by ixtab

It's actually just the long form of your command, i.e. explicitly saying "the s/.../ part is the expression to be evaluated". try sed --help on your device, you'll find the info there. I actually wasn't even aware that one could omit the "-e".

Anyway, I just ran this on the device, and sed is working as it should.

[root@kindle tmp]# echo 12345600789 > test.txt
[root@kindle tmp]# sed -e 's/600/900/' test.txt 
12345900789

I looked at your code again, and there is something fishy: if the backup file doesn't exist, it is created from the current configuration. It doesn't necessarily contain "600", though. So maybe this is why it's failing.

I would suggest to rewrite the thing to a simpler and "less dangerous" variant, something like:

if [ -f /etc/kdb.src/luigi/system/daemon/powerd/t1_timeout.TEMPLATE ]
then
	sed -e 's/_TIMEOUT_/900/' /etc/kdb.src/luigi/system/daemon/powerd/t1_timeout.TEMPLATE > /etc/kdb.src/luigi/system/daemon/powerd/t1_timeout
	/etc/init.d/powerd restart
fi
exit

You would create the TEMPLATE file exactly once (maybe on installation, whatever), and instead of putting some exact number in there, put _TIMEOUT_ in the respective place. This is the pattern that'll be replaced. I also suggest not to duplicate the logic over 5 files, but create it once, and parameterize it... Along the lines of "set_timeout.sh 900". Instead of hard-coding the value, you'd just use $1 in the script.

Thanks for the suggestion. Your TEMPLATE idea is interesting.

Fortunately, I did figure out another way to do this. I will show you what I did in the next post.

BTW, I think not having 'mntroot rw' and 'mntroot ro' in the script was the issue. I say this only because that is what resolved the 'failure' message I kept getting with the updated script.

[inameiname]

So I think I figured out how to do this. Using the code by pilotdrh2003, found here: https://www.mobileread.com/forums/sho...postcount=1210, thanks to WS64, I altered it a small bit (so it goes to the appropriate directory on firmware 3.3 (uncomment the 3.X and comment the 3.3 section if required). Here, there are Launchpad shortcuts you can use to do it. Easy peasy.

Please test to verify that it works. FYI, one other customization is that it is set on the 'us' directory. So change if needed.

The fix is already included above, in the first post. Note: if you have a /mnt/us/screensaver-timeout file with a custom screensaver timeout (in seconds), it will override whatever Launchpad shortcut time you use when you run one of the shortcuts.

[ixtab]

Good to see that you solved it. I personally can't test it though, I have a Kindle Touch

[inameiname]

Originally Posted by ixtab

Good to see that you solved it. I personally can't test it though, I have a Kindle Touch

Ah, gotcha. Well, hopefully I did. I am hoping some folks on here will test it and get back to me to see if it really works for all.

[krabapell]

Thanks a lot for this script
I've been wanting to change the timeout but still hesistant to manually edit the file.

I'm running on 3.1 and so far, it' running without bugs.
I've used both the 30 and 60 minutes.

[inameiname]

Originally Posted by krabapell

Thanks a lot for this script
I've been wanting to change the timeout but still hesistant to manually edit the file.

I'm running on 3.1 and so far, it' running without bugs.
I've used both the 30 and 60 minutes.

That's great. I am glad it is working for you. I was waiting to hear from others whether or not it was working.

[rastik]

Originally Posted by ixtab

Good to see that you solved it. I personally can't test it though, I have a Kindle Touch

You can. Just replace string "luigi" with "yoshi" in the file path. powerd daemon is the same as it was in KK.

[A-I]

Originally Posted by ixtab

Good to see that you solved it. I personally can't test it though, I have a Kindle Touch

Has anyone written a KT launcher app to change the screensaver timeout?

[thomass]

Originally Posted by A-I

Has anyone written a KT launcher app to change the screensaver timeout?

good idea

I will try to add this to SSModeSwitcher

[xueyou2]

hello!I come from china!Excuse my poor english!

i usually listen to music before sleeping,mostly i fall asleep without shuting down my kindle! so i want my kindle's mplayer to be killed in a time that can be set!
i think it is useful because i have many friend ， is not that?
thank you!

[dave2008]

Originally Posted by xueyou2

hello!I come from china!Excuse my poor english!

i usually listen to music before sleeping,mostly i fall asleep without shuting down my kindle! so i want my kindle's mplayer to be killed in a time that can be set!
i think it is useful because i have many friend ， is not that?
thank you!

Maybe you can try run following command with launchpad before you go to sleep.

lipc-wait-event  -s 0 com.lab126.powerd goingToScreenSaver && killall mplayer