Difference between revisions of "Parallella Speed Up Ubuntu"
(→Force screen resolution to 1280x720 and enable devtmpfs) |
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<pre> | <pre> | ||
− | bootargs = "root=/dev/mmcblk0p2 rw rootfstype=ext4 rootwait | + | bootargs = "root=/dev/mmcblk0p2 rw rootfstype=ext4 rootwait video=HDMI-A-1:1280x720"; |
</pre> | </pre> | ||
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'''Note: The resolution settings of the xorg.conf (Modes "1280x720") must match with the bootargs settings (video=HDMI-A-1:1280x720).''' | '''Note: The resolution settings of the xorg.conf (Modes "1280x720") must match with the bootargs settings (video=HDMI-A-1:1280x720).''' | ||
+ | <pre> | ||
I strongly recommend 1280x720, not 1920x1080, because too high resolution makes everything slow. | I strongly recommend 1280x720, not 1920x1080, because too high resolution makes everything slow. | ||
But if you prefer the default resolution of the monitor, try these settings. | But if you prefer the default resolution of the monitor, try these settings. | ||
− | + | bootargs = "root=/dev/mmcblk0p2 rw rootfstype=ext4 rootwait"; | |
− | bootargs = "root=/dev/mmcblk0p2 rw rootfstype=ext4 rootwait | + | |
+ | And comment out all of the "Modes" line in xorg.conf. | ||
</pre> | </pre> | ||
− | |||
==Reboot== | ==Reboot== | ||
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sudo reboot | sudo reboot | ||
</pre> | </pre> | ||
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− | |||
{{Template:Parallella Navbox}} | {{Template:Parallella Navbox}} |
Revision as of 14:19, 22 May 2014
This is a how to guide to speed up the official Ubuntu for Parallella, this is only for ubuntu-lxde-14.03.06-p16g1.img. Do not apply these tips to another version.
By applying these tips, you will get,
- Better desktop performance
- Boot up stability
- Sound output from HDMI
- USB devices (e.g. webcam, USB stick)
Apply all the tips at once.
Contents
Fix the permission of .gconf
sudo chown -R linaro:linaro ~/.gconf
ALSA configuration
nano ~/.asoundrc
(copy, paste and save)
pcm.!default { type rate slave { pcm "hw:0" rate 48000 } converter "samplerate" }
Disable PCManFM Desktop mode
rm -f ~/.config/lxsession/LXDE/autostart sudo nano /etc/xdg/lxsession/LXDE/autostart
Delete the line "@pcmanfm --desktop --profile LXDE".
Append this line to the bottom of the file.
@feh --bg-fill /usr/share/lxde/wallpapers/parallella.png
Select from Menu -> Preferences -> Desktop Session Settings, uncheck "GNOME Settings Daemon", [OK]
Speed up Firefox
Launch Firefox, Type "about:config" in the URL bar, Type "browser.cache.disk.enable" in the "Search:" bar, Change the value true->false by double-clicking.
Type "mousewheel.acceleration.start" in the "Search:" bar, Double click, set [2].
Speed up SSH login
Disable sshd hostname look-up.
sudo nano /etc/ssh/sshd_config
Append this line to the bottom of the file.
UseDNS no
Remove xscreensaver
sudo apt-get purge xscreensaver
Make Leafpad the default editor
Right-click a text file on PCManFM, select Properties->General->Open with: Select Leafpad
Install fake-hwclock
sudo apt-get install fake-hwclock
Clear persistent-net.rules
sudo rm /etc/udev/rules.d/70-persistent-net.rules
Force screen resolution to 1280x720 and enable devtmpfs
Create device node of the SD card.
sudo mknod -m 660 /dev/mmcblk0 b 179 0 sudo mknod -m 660 /dev/mmcblk0p1 b 179 1 sudo mknod -m 660 /dev/mmcblk0p2 b 179 2
Install device-tree-compiler.
sudo apt-get install device-tree-compiler
Mount partition1 of the SD card.
sudo mount /dev/mmcblk0p1 /mnt cd /mnt
Create devicetree.dts from devicetree.dtb.
sudo cp devicetree.dtb devicetree.dtb.bak sudo dtc -I dtb -O dts -o devicetree.dts devicetree.dtb
Edit devicetree.dts.
sudo nano devicetree.dts
(Search(Ctrl-W) and Edit the "bootargs" line then save)
bootargs = "root=/dev/mmcblk0p2 rw rootfstype=ext4 rootwait video=HDMI-A-1:1280x720";
Compile it to dtb to enable it.
sudo dtc -I dts -O dtb -o devicetree.dtb devicetree.dts
Configure Xorg.
sudo nano /etc/X11/xorg.conf
(copy & paste and save)
Section "Device" Identifier "Card0" Driver "modesetting" Option "ShadowFB" "True" Option "SWCursor" "True" Option "HWCursor" "False" EndSection Section "Screen" Identifier "Screen0" Device "Card0" SubSection "Display" #---- Uncomment your preferred mode ---- #Modes "1920x1200" #Modes "1920x1080" Modes "1280x720" #Modes "640x480" EndSubSection EndSection
The preferred resolution is 1280x720, however you can set another resolution.
To check the available resolutions, type this command on a terminal. (with HDMI connected, on native X Window, not in ssh)
cat /sys/class/drm/card0-HDMI-A-1/modes
Or, type this command on a terminal. (with HDMI connected, on native X Window, not in ssh)
xrandr -q
Note: The resolution settings of the xorg.conf (Modes "1280x720") must match with the bootargs settings (video=HDMI-A-1:1280x720).
I strongly recommend 1280x720, not 1920x1080, because too high resolution makes everything slow. But if you prefer the default resolution of the monitor, try these settings. bootargs = "root=/dev/mmcblk0p2 rw rootfstype=ext4 rootwait"; And comment out all of the "Modes" line in xorg.conf.
Reboot
sync sudo reboot
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