User:Kotczarny

m (Reverted edits by 5.188.45.160 (Talk) to last revision by kotczarny)
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== few tips/notes ==
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=== 5 dot syndrome (no boot to desktop), possible reasons ===
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1/ missing /home/user
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2/ initscripts fail for hildon-desktop (happened to me when there was an error in /home/user/.profile *doh*)
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=== stuck orange ===
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stop mce; sleep 10; start mce
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=== stuck usb status bar plugin ===
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ke-recv-test p; sleep 1; ke-recv-test c
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=== battery calibration ===
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The Valid Discharge Flag (VDQ) in the FLAGS register is set when
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this condition occurs and remains set until the learning discharge cycle completes or an event
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occurs that disqualifies the learning cycle. A learning cycle can be disqualified by
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any of the following conditions:
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1. Cold temperature: Temperature ⤠TCOMP[3:0] (°C) when the EDV1 threshold voltage is reached.
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2. Light load: A capacity learning cycle is disqualified if average current is less than
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or equal to 2 times the initial standby load when the EDV1 threshold voltage is reached.
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3. Fast voltage drop: VOLT (EDV1 256 mV) before EDV1 is set.
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4. Excessive charging: Cumulative Charge >255 NAC counts (910 *Vh) during a learning discharge
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cycle (alternating discharge/charge/discharge before EDV1 is set)
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This boils down to: don't charge during learning cycle (self evident), do discharge with
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a moderate load that's not too low but also not too high particularly don't cause load bursts
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when batt voltage is about to reach EDV1 ideally you keep backlight lit, this will warrant
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a proper calibration.
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=== battery charging current check/set ===
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to get 500 mA from a 500 mA charger after plugging in:
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* echo 500 >/sys/class/power_supply/bq24150a-0/charge_limit
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you can also read that file to see how much it's willing to draw; will probably say 100 after plugging it into unsupported charger
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=== disable 'telephony functions' popup (for those with broken modem) ===
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sed -i s/start on started dbus/# start on started dbus/ /etc/event.d/sscd
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(thanks to peterleinchen https://talk.maemo.org/showthread.php?t=93158 )
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=== make n900 with broken screen boot and display proper image on av cable ===
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put 'fbset -g 800 480 800 480 16' right before X server start in /etc/event.d/xomap (or /etc/event.replace.d/xomap )
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=== misc links ===
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[[N900_shortcuts_and_gestures]]
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=== scratchbox/sdk ===
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[[Documentation/Maemo_5_Final_SDK_Installation]]
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http://repository.maemo.org/stable/fremantle/
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=== rescueOS ===
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http://n900.quitesimple.org/rescueOS/
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https://n900.quitesimple.org/rescueOS/rescueOS-1.2/documentation.txt
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=== irc wisdom ===
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==== ~flatbatrecover ====
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Remove battery for 1 minute. Insert battery. Plug powered ***NOKIA WALLCHARGER*** to device. Watch steady amber. Let sit and charge. Do NOT try to boot. After 30 min, you got either
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a) a booted up N900,
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b) flashing amber which means you can boot,
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c) steady amber shut off -> start over again with ~flatbatrecover while already searching for a new battery.
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CAVEAT! Only works when ~rootfs OK (no ~bootloop)
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==== ~flashing ====
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[[Updating_the_tablet_firmware]], or (on linux PC) download&extract  http://maemo.cloud-7.de/maemo5/patches_n_tools/maemo-my-private-workdir.tgz, cd into it, do sudo ./flash-it-all.sh
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win7 64bit: http://talk.maemo.org/showpost.php?p=849980&postcount=20
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==== ~usbnetworking ====
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[[USB_networking]], [[N900_USB_networking]]
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==== ~jrtools ====
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[[User:Joerg_rw/tools]]  (some tips and hacks)
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==== ~keyremap ====
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[[Remapping_keyboard]]
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== bookmarks ==
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* [[N900_Hardware_Power_Consumption]]
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== devel shortcuts ==
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* [[Developer_FAQ]]
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* [[Documentation/Maemo_5_Developer_Guide]], [[Documentation/Maemo_5_Developer_Guide/Architecture/Multimedia_Domain]]
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* [[Packaging]]
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* [[Uploading_to_Extras-devel]]
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* [[Desktop_file_format]]
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* [https://wiki.maemo.org/Category:Development category:development]
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* [[Repository#List_of_Maemo_repositories]]
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* [http://bigbob.fun.free.fr/for-freemangordon/adding-ramzswap-driver.diff ramzswap for 2.6.28]
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Revision as of 17:30, 22 August 2019

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