Online screensaver extension

[terencelzw]

online screensaver extension currently does not update while kindle is in suspend mode for paperwhite2 on 5.9.4. It only updates when I press the power button to wake the kindle up.

In order to make it work for my kindle I had to change the wait_for function in utils.sh by a little. I modified the following lines

Before:
lipc-wait-event -s $REMAININGWAITTIME com.lab126.powerd resuming || true

After:
lipc-wait-event -s $REMAININGWAITTIME com.lab126.powerd wakeupFromSuspend,resuming || true

Hope this helps those who have been facing this issue

[mdauso]

Hello to all and Merry Christmas,

I‘m new here and I have problems getting the online screensaver to run on my PW2 with Jailbrake, KUAL, and linkss. The PW2 was jailbroken via seriel USB adapter due to firmware 5.12.1.
Is online screensaver running on this firmware? Screensaver hack is running well.

Cheers, Mario

[mironov]

I'm using Onlinescreensaver on my Kindle Touch (K5), and spent good amount of time getting it to wake up from suspend.

Here is the code I ended up with:

# runs when in the readyToSuspend state;
# sets the rtc to wake up
# arguments: $1 - amount of seconds to wake up in
set_rtc_wakeup()
{
	lipc-set-prop -i com.lab126.powerd rtcWakeup $1 2>&1
	logger "rtcWakeup has been set to $1"
}

##############################################################################
# sets an RTC alarm
# arguments: $1 - time in seconds from now

wait_for () {
	ENDWAIT=$(( $(currentTime) + $1 ))
	REMAININGWAITTIME=$(( $ENDWAIT - $(currentTime) ))
	logger "Starting to wait for timeout to expire: $1"

	# wait for timeout to expire
	while [ $REMAININGWAITTIME -gt 0 ]; do
		EVENT=$(lipc-wait-event -s $1 com.lab126.powerd readyToSuspend,wakeupFromSuspend,resuming)
		REMAININGWAITTIME=$(( $ENDWAIT - $(currentTime) ))
		logger "Received event: $EVENT"

		case "$EVENT" in
			readyToSuspend*)
				set_rtc_wakeup $REMAININGWAITTIME
			;;
			wakeupFromSuspend*|resuming*)
				logger "Finishing the wait"
				break
			;;
			*)
				logger "Ignored event: $EVENT"
			;;
		esac
	done

	logger "Wait finished"
}

Hope it helps someone

[LUNZ]

Originally Posted by StefanS

... and here is the modified files for the PW
(just utils.sh from bin and a config with two RTCs)

regards,
Stefan

Hi Stefan, I know this is an old thread, but can you provide some clarification on what I need to do to get this running on a PW1? It might be easier to provide the exact zip of files to add to the extensions folder.

Current Setup:
Kindle Paperwhite 1
running 5.3.3 & Jailbroken


I'm getting this error with the official release:

/mnt/us/extensions/onlinescreensaver/bin/scheduler.sh: line 125: can't create /sys/class/rtc/rtc0/wakealarm: nonexistent directory

[LUNZ]

I was able to update to firmware 5.6.1.1 on my PW1 and the screensaver is automatically downloading from a docker container running this: https://github.com/sibbl/hass-kindle-screensaver

Unfortunately, when I lock the screen, it cycles for 60 seconds every time. This kills my battery.

I know this is an old thread, but is there something in the config that someone can point to that I can change this setting?

[jonnydeath]

To get this to run on my PW3 with 5.12.4 I had to change all the

source config.sh
source utils.sh

to the full path:

source /mnt/us/extensions/onlinescreensaver/bin/config.sh
source /mnt/us/extensions/onlinescreensaver/bin/utils.sh

in enable.sh, disable.sh, update.sh, schedule.sh

[hellogareth]

Originally Posted by jonnydeath

To get this to run on my PW3 with 5.12.4 I had to change all the

source config.sh
source utils.sh

to the full path:

source /mnt/us/extensions/onlinescreensaver/bin/config.sh
source /mnt/us/extensions/onlinescreensaver/bin/utils.sh

in enable.sh, disable.sh, update.sh, schedule.sh

Thanks, jonnydeath. This gets the image from the server on a PW2 5.12.2.1.1, for me.

[speedyg0nz]

Thanks for this extension, and all the little tips on how to get it working after the new software updates! My PW2 is now a desk calendar that shows me upcoming events for the coming weeks!

For those curious about how I generated the calendar screensaver, I automate the running of a little script on a Raspberry Pi that pulls events from my Google Calendar daily. The script also formats the event into the desired layout before rendering as an image, and placing it on a HTTP server (that also runs on the Raspberry Pi). The Kindle then retrieves the calendar from the HTTP server every morning via the Online Screensaver extension, and changing the screensaver to show me the updated calendar.

[Kitoons]

I have two Kindle PaperWhite PW3, one in 5.13.3 (soft jailbroken) and one in 5.13.7 (serial jailbroken).

For futur users coming through this topic. On both of them, for this extension to work properly, I needed to modify three things:

- Modification of the rtc to rtc1 in config.sh
- Modification of the lipc-wait event call in utils.sh as described by @terencelzw in this post
- Modification of the include of utils.sh and config.sh in other files as described by @jonnydeath in this post

And voila, two kindle, one for my leaving room, on for my office room, ready to display a lot of useful informations. (once I will have developed the server part that will gather the intel and generate the picture)

[XTy9zVWXwn]

I been trying to use is with my PW3 in fw 5.14.2. I can't seem to get network to work in after waking up from sleep. Only if the screen is on does the network work.

I created this test script to get more logging:

cd "$(dirname "$0")"

source /mnt/us/extensions/onlinescreensaver/bin/utils.sh
source /mnt/us/extensions/onlinescreensaver/bin/config.sh

log_network() {
    logger "NET ifconfig > $(ifconfig wlan0)"
    logger "NET wifid cmState > $(lipc-get-prop com.lab126.wifid cmState)"
    logger "NET wifid signalStrength > $(lipc-get-prop com.lab126.wifid signalStrength)"
    logger "NET wpa_cli status > $(wpa_cli status verbose)"
}

logger "Start Wait"
wait_for 300
logger "Wake"
logger "wpa_cli reassociate $(wpa_cli -i wlan0 reassociate)"

WLANFAIL=0
WLANCOUNTER=0
wait_wlan(){
    return $(lipc-get-prop com.lab126.wifid cmState | grep CONNECTED | wc -l)
}

while wait_wlan; do
    if [ ${WLANCOUNTER} -eq 10 ]; then
        log_network
        logger "wpa_cli disconnect: $(wpa_cli -i wlan0 disconnect)"
        logger "wpa_cli reconnect: $(wpa_cli -i wlan0 reconnect)"
    fi
    if [ ${WLANCOUNTER} -eq 30 ]; then
        log_network
        logger "wifid disable $(lipc-set-prop com.lab126.wifid enable 0)"
        logger "wifid enable $(lipc-set-prop com.lab126.wifid enable 1)"
    fi
    if [ ${WLANCOUNTER} -eq 50 ]; then
        log_network
        logger "wpa_cli reassociate $(wpa_cli -i wlan0 reassociate)"
    fi
    if [ ${WLANCOUNTER} -eq 60 ]; then
        log_network
        WLANFAIL=1
        logger "WLAN failed"
        break
    fi
    let WLANCOUNTER=WLANCOUNTER+1
    logger "Waiting for WLAN ${WLANCOUNTER}"
    sleep 1
done

/bin/ping -c 1 -w 2 $TEST_DOMAIN 2>&1 >> $LOGFILE && echo "Ping success" >> $LOGFILE

less $LOGFILE

But it just fail over and over, repeating this same info:

NET ifconfig > wlan0 Link encap:Ethernet HWaddr FC:A6:67:85:7A:DD UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:27481 errors:3 dropped:4338 overruns:0 frame:3 TX packets:10808 errors:9 dropped:0 o
verruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:7240800 (6.9 MiB) TX bytes:1435062 (1.3 MiB)
NET wifid cmState > NA
NET wifid signalStrength >
NET wpa_cli status > Selected interface 'wlan0' bssid=ac:84:c6:2a:12:db ssid=REDACTED id=1 mode=station pairwise_cipher=CCMP group_cipher=TKIP key_mgmt=WPA2-PSK wpa_state=COMPLETED address=fc:a
6:67:85:7a:dd

Anyone have a clue what's going on?

I've tried all the rtc, only with rtc1 does waking up work, which lead me to this problems.

[Spindoctor]

I also have a PW 3 with the recent firmware (5.14.2), but it works for me.

I applied all the mods that Kitoons mentioned.

Also, I noticed, that some of the files often get corrupt when I frequently connect and disconnect the Kindle to my Linux system. For this reason I had to upload some of the files more than once.

However, if you try all that, I would suggest you recheck your settings. For example I misconfigured the schedule once, which also resulted in a strage behavior.

Good luck.

[XTy9zVWXwn]

Originally Posted by Spindoctor

I also have a PW 3 with the recent firmware (5.14.2), but it works for me.

I applied all the mods that Kitoons mentioned.

Also, I noticed, that some of the files often get corrupt when I frequently connect and disconnect the Kindle to my Linux system. For this reason I had to upload some of the files more than once.

However, if you try all that, I would suggest you recheck your settings. For example I misconfigured the schedule once, which also resulted in a strage behavior.

Good luck.

Thanks for responding. I've isolated the waitfor method for testing so it can't be the schedule. Still it is good to know that the device/firmware is not the culprit.

[andraz]

Originally Posted by Spindoctor

I also have a PW 3 with the recent firmware (5.14.2), but it works for me.

Can you help me with that? I've tried to get my PW3 (5.14.2) to work with the online screensaver extension, with no success. What I've done so far:
1. reset the device
2. applied JB (WatchThis), incl. hotfix
3. installed the latest KUAL (booklet) & MRPI
4. installed screensaver hack
5. copied online screensaver content (from the first post of this thread) to the extensions folder
6. applied all three corrections to the code (from Kitoons post)
7. changed IMAGE_URI, DEFAULTINTERVAL and SCHEDULE in config.sh

I get to see the png fetched from the web, but it does not refresh. Sometimes weird things occur, such as showing some older images as screenshots after I lock the device by pressing the physical button.

[andraz]

I've finally figured it out. A missing piece of the puzzle was to disable WIFI and simply let the script to do its job (it enables WIFI itself right before needed and disables it afterward). If WIFI is not disabled when Kindle is awake, it gets suspended by the system when it falls asleep. In this case, the command "lipc-get-prop com.lab126.cmd wirelessEnable" will still return 1 even though there is no connection established (no response to ping). It is possible to overcome this by simulating a press of the physical button and waking the Kindle before the script execution (this has been implemented in Stefan's version). But doing that the backlight will flash every time the screen gets updated.

[XTy9zVWXwn]

Originally Posted by andraz

I've finally figured it out. A missing piece of the puzzle was to disable WIFI and simply let the script to do its job (it enables WIFI itself right before needed and disables it afterward). If WIFI is not disabled when Kindle is awake, it gets suspended by the system when it falls asleep. In this case, the command "lipc-get-prop com.lab126.cmd wirelessEnable" will still return 1 even though there is no connection established (no response to ping). It is possible to overcome this by simulating a press of the physical button and waking the Kindle before the script execution (this has been implemented in Stefan's version). But doing that the backlight will flash every time the screen gets updated.

That is some great detective works. Thanks for sharing.