FAST STABLE FULL-FEATURED
Works with flo (wifi only) and deb (lte version)
ElementalX brings the best performance and most features to the new Nexus 7. Stable and full-featured, this is the only kernel that offers individual control of all CPU cores and automatic undervolting options without third party apps, l2 cache and bus bandwidth overclocking options, fully working sweep2wake, doubletap2wake, ability to disable magnetic on/off and USB fastcharge.
* Standard disclaimer:
* Your warranty is now void. *Use at your own risk.
* In other words: It is your choice to use this software,
* I am not responsible for any damage or problems you may have!
easy installation and configuration with Aroma installer
option to enable/disable magnetic on/off
l2 and bus overclocking options
GPU overclocking options
select independent frequencies for each core
choose automatic minimum voltage (725mV to 850mV)
complete user voltage control
GPU governors: ondemand, simple
CPU governors: ondemand, intellidemand, interactive
1. Install zip from recovery
2. Follow the instructions, if you don't know what to do, use the preselected options
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ElementalX Configuration File
Your choices in the Aroma installer are used to build a configuration file. The config file is located at /etc/elementalx.conf. You can edit this file to change kernel settings. Whatever is set in this file will take effect when the device is booted (unless other scripts or apps interfere!)
The settings can be changed by editing /etc/elementalx.conf and rebooting. Advanced users can apply settings on the fly by running /etc/init.d/99elementalx as root.
There is no need to edit /etc/init.d/99elementalx. All settings are configured in /etc/elementalx.conf.
If settings are not sticking, make sure the file permissions for /etc/init.d/99elementalx are set to execute. Every time the settings are applied, a log file is created at /data/local/tmp/elementalx-kernel.log. Problems can be diagnosed by looking at the log file.
Please check to see if any /etc/init.d scripts or apps (such as Kernel Tuner or Trickstermod) are interfering with your settings.
ElementalX Log File
Every boot, a log file is created at /data/local/tmp/elementalx-kernel.log. *This file shows the date and time and all settings that have been applied. *Use this to verify and troubleshoot configuration options.
Kernel Tuner/TricksterMod, etc
You don't need these apps because the ElementalX installer sets everything up automatically, but if you want to check or change settings, you can use these apps. Just be aware that some of them (e.g. Kernel Tuner) are set by default to apply settings on boot, which can interfere with the settings you chose in the ElementalX installer. *
Overclocking (or underclocking) is optional. The installer lets you choose the maximum frequency.*You can set the maximum frequency individually for each CPU core in the installer. *Whatever frequencies you chose in the installer will be set at boot for each CPU. Not all devices can handle overclocking. The stock maximum CPU frequency is 1512MHz. *I recommend a mild overclock, like 1728MHz for daily use.*Clocking higher creates heat and wastes battery for very little performance gain.
The installer allows you to choose from several undervolting options. *These automatically undervolt the lowest frequency (384MHz) where the CPU spends most of its time. *The voltages for other frequencies are assigned based on the PVS bin of your phone. *CPU voltages are fully customisable with apps such Kernel Tuner or Trickster Mod, but I recommend leaving these other voltages as-is unless you are prepared to do a lot of testing. *Be careful, lowering voltages can cause instability. Generally, having reboots while the phone is asleep or other weird problems is a sign that your minimum voltage is too low. *The minimum voltage allowed is 700mV.
There are two modes: stock and overclocking. If you pick stock GPU freq (400MHz) you won't be able to overclock. Conversely, if you pick one of the overclocking frequencies, you won't be able to use the stock 400MHz frequency. You have to reflash if you want to change this.
These are the frequencies I've added: 450, 477, 490.5, 504, 531, 558, and 585
If you're in overclock mode, you change these on the fly with TricksterMod. I don't recommend 558+ for daily use. Too hot and probably unstable for most.
The default GPU govenror is ondemand. *It works well and is recommended for best balance between performance and batter life. *The simple governor is also available, but ramps up the GPU frequency much quicker than ondemand, so may impact battery life. *The governor can be set in /etc/elementalx.conf
Fsync can be disabled if you're looking for the last ounce of performance. I recommend leaving it enabled unless you are sure
Max screen off frequency
The default max screen off frequency is 702MHz, which is a good balance between limiting the voltage/frequency and the time required to complete tasks while the screen is off. *This can be changed manually at /sys/devices/system/cpu/cpu0/cpufreq/screen_off_max_freq
USB host mode charging
I've added a hack to allow usb host mode charging. Since not that many people are going to be using this, it needs to be enabled manually. This will allow you to charge the tablet while a USB peripheral is hooked up to the OTG cable.
To use it, change /sys/module/msm_otg/parameters/usbhost_charge_mode to 1.
You need a Y-cable and OTG adapter. This will be handy for people who use their tablet in the car and need to keep it charged.
First connect the Y-cable to your OTG adapter and a power source, then attach a USB peripheral. Finally, plug the OTG adapter into the tablet. Both the tablet and the peripheral will be powered by the Y-cable, allowing the tablet to charge
Installing a new ROM
If you install a new ROM, it will probably replace this with the stock kernel and will definitely overwrite /etc/init.d/99elementalx and /etc/elementalx.conf so you will lose your settings and certain features. *So always reinstall the kernel after installing a ROM.
NTFS and exFAT support
This is for anyone who wants to use OTG to connect a USB stick or portable harddrive formatted with Microsoft's NTFS or exFAT filesystems. You will need Stickmount or a similar app,
Sweep2wake (S2W) allows you to wake or sleep your device by swiping your finger across the bottom of the screen where the back, home, recent buttons are. Swiping from right to left will put it to sleep (sweep2sleep) and swiping from left to right will wake it up (sweep2wake). The options are: sweep2wake/sweep2sleep, sweep2sleep only, and disabled. *You can edit /etc/elementalx.conf to change the setting on boot.
2 = sweep2sleep only
Enabling this makes sweep2wake work with a shorter sweep distance. You can edit /etc/elementalx.conf to change the setting on boot.
DoubleTap2Wake (DT2W) allows you to wake the device by double tapping anywhere on the screen. *You can edit /etc/elementalx.conf to change the setting on boot.
Still needs some tweaking!
0 = disabled
1 = *enabled
Enable/disable Magnetic on/off
This setting allows you to enable or disable the magnetic on/off switch used by some cases. * You can edit /etc/elementalx.conf to change the setting on boot.
0 = disabled
1 = *enabled
December 7, 2013 - ElementalX-N7-2.3
-update for Android 4.4.1
-various tweaks and optimizations
November 26, 2013 - ElementalX-N7-2.2
-option to disable s2w/dt2w when magnetic cover is used
November 23, 2013 - ElementalX-N7-2.1
-fix CIFS support
-add intellidemand CPU governor
-remove ultra cpu setting
-max screen off frequency (1026MHz default)
November 21, 2013 - ElementalX-N7-2.0
-support Android 4.4 (kitkat)
October 14, 2013 - ElementalX-N7-1.8
-fix-up for kexec-hardboot (multirom)
-aroma option for battery life extender
-3G USB modem drivers (built-in)
October 11, 2013 - ElementalX-N7-1.7
-update config files
-add S2W power key suspend toggle
-add options to disable sweep2sleep in portrait or landscape mode
-show pvs number in sysfs
-add DVB support (requires modules add-on, coming soon)
-remove 128MHz GPU step and idle at 200MHz step
-add battery life extender (thanks tni_andro)
-boost CPU frequency only for touch input
-adjust bus bandwidth
September 21, 2013 - ElementalX-flo-1.5
-option to allow usb host mode charging
-add more GPU overclock frequencies
-latest googlesource update
-update freezer and cpuidle
September 10, 2013 - ElementalX-flo-1.4
-add option to enable/disable fsync
-AIO: Don't plug the I/O queue in do_io_submit()
-add fstrim to init script
September 6, 2013 - ElementalX-flo-1.3
-add loadable kernel module support
-add exFAT filesystem support
-fix CIFS support
August 26, 2013 - ElementalX-flo-1.2
-add faux sound support
August 23, 2013 - ElementalX-flo-1.1
-update touch firmware to A042
-disable pack feature for Hynix part
-fix lower voltage limit
August 17, 2013 - ElementalX-flo-1.0
-add thermal options
-clean up code
August 13, 2013 - ElementalX-flo-0.10
-kernel-based thermal control
August 12, 2013 - ElementalX-flo-0.9
-suppress multiple touches in s2w
August 10, 2013 - ElementalX-flo-0.8
-adjust Makefile options
-fiops is default i/o scheduler
-cleanup from other kernels
-add shortsweep setting
-option to disable magnetic on/off
August 8, 2013 - ElementalX-flo-0.7
-make doubletap2wake a little easier
-remove some debugging stuff
-installer ensures mpdecision and thermald are present
August 7, 2013 - ElementalX-flo-0.6.1
-installer adds init.d and mount support to ramdisk if necessary
August 7, 2013 - ElementalX-flo-0.6
-make sweep2sleep work on all edges
-make sweep2wake work in any direction
-fix installer typo forcing 1728 on CPU 1,2,3
-remove GPU 533MHz option
August 6, 2013 - ElementalX-flo-0.5
-build with linaro 4.8 toolchain
-add GPU overclock to 533MHz
-fix for app-mounted directories (thanks @mkasick)
-s2w works anywhere on screen when screen is off (still left to right only)
August 5, 2013 - ElementalX-flo-0.4
-increase thermal limits
-fix frequencies stuck at 1512
August 4, 2013 - ElementalX-flo-0.3
-add TCP congestion control algorithms
-add CPU optimization levels
-add more overclocking options
-fix automatic undervolting
-option to overclock GPU (487MHz)
-update ARM topology
-add cpu_power driver
-use ramdisk from ROM
August 2, 2013 - ElementalX-flo-0.2
-max screen off frequency 702MHz
-adjust simple gpu governor
-simple GPU governor installer option
-add simple GPU governor (faux123)
-use Google Android toolchain 4.6
-slight boost to L2 freq
-add TCP congestion algorithm options
-hsic wakelock tweak
-CPU overclock to 2052MHz
-optimized AES and SHA1 routines
-lower possible voltage to 700
-optional graphics overclock
-ntfs r/w support
-fast rcu nohz
-add FIOPS and SIO i/o schedulers
August 1, 2013 - ElementalX-flo-0.1
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