Difference between revisions of "Parallella Speed Up Ubuntu"
(→Force screen resolution to 1280x720 and enable devtmpfs) |
m |
||
(10 intermediate revisions by the same user not shown) | |||
Line 1: | Line 1: | ||
[[Category:Parallella]] | [[Category:Parallella]] | ||
− | 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. | + | '''Almost all these techniques have been incorporated into the latest official Parallella Ubuntu image now.''' |
+ | |||
+ | This is a how to guide to speed up the official Ubuntu for Parallella, '''<big>this is only for ubuntu-lxde-14.03.06-p16g1.img on Parallella E16/Zynq7020. Do not apply these tips to another version/board</big>'''. | ||
+ | |||
+ | '''Please apply these instructions without modification.'''<br /> | ||
+ | Each configuration is carefully constructed and is interdependence, so if you modify something, it may get even worse. | ||
[http://youtu.be/TsjjIpjYM3U Demo Video] | [http://youtu.be/TsjjIpjYM3U Demo Video] | ||
Line 11: | Line 16: | ||
*USB devices (e.g. webcam, USB stick) | *USB devices (e.g. webcam, USB stick) | ||
− | Apply all the tips at once. | + | '''Apply all the tips at once.''' |
==Fix the permission of .gconf== | ==Fix the permission of .gconf== | ||
Line 80: | Line 85: | ||
==Remove xscreensaver== | ==Remove xscreensaver== | ||
+ | |||
+ | xscreensaver causes freeze on X startup. So remove it. | ||
<pre> | <pre> | ||
sudo apt-get purge xscreensaver | sudo apt-get purge xscreensaver | ||
</pre> | </pre> | ||
+ | |||
+ | '''Note: It is insufficient to disable xscreensaver by "Screensaver" configuration. We have to "apt-get purge" to completely disable xscreensaver.''' | ||
==Make Leafpad the default editor== | ==Make Leafpad the default editor== | ||
Line 96: | Line 105: | ||
==Clear persistent-net.rules== | ==Clear persistent-net.rules== | ||
+ | |||
+ | Clear garbage configuration. | ||
<pre> | <pre> | ||
Line 101: | Line 112: | ||
</pre> | </pre> | ||
− | == | + | ==Enable devtmpfs== |
− | Create device | + | Create device nodes of the SD card. |
<pre> | <pre> | ||
Line 144: | Line 155: | ||
<pre> | <pre> | ||
− | bootargs = "root=/dev/mmcblk0p2 rw rootfstype=ext4 rootwait | + | bootargs = "root=/dev/mmcblk0p2 rw rootfstype=ext4 rootwait"; |
</pre> | </pre> | ||
Line 153: | Line 164: | ||
</pre> | </pre> | ||
− | Configure Xorg | + | ==Configure Xorg== |
<pre> | <pre> | ||
Line 173: | Line 184: | ||
Device "Card0" | Device "Card0" | ||
SubSection "Display" | SubSection "Display" | ||
− | + | #Modes "1280x720" | |
− | |||
− | # | ||
− | |||
− | |||
EndSubSection | EndSubSection | ||
EndSection | EndSection | ||
</pre> | </pre> | ||
+ | |||
+ | ==Reboot== | ||
+ | |||
+ | <pre> | ||
+ | sync | ||
+ | |||
+ | sudo reboot | ||
+ | </pre> | ||
+ | |||
+ | ==(Optional) How to force framebuffer resolution to 1280x720== | ||
+ | |||
+ | This increases desktop performance on a full-HD monitor. | ||
The preferred resolution is 1280x720, however you can set another resolution. | The preferred resolution is 1280x720, however you can set another resolution. | ||
Line 198: | Line 217: | ||
'''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).''' | ||
− | + | Then set the resolution in the settings above. | |
− | + | Edit bootargs and update dtb file. | |
<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> | ||
− | + | Edit xorg.conf (Uncomment the "Modes" line and edit the resolution) | |
− | |||
− | |||
<pre> | <pre> | ||
− | + | Modes "1280x720" | |
− | |||
− | |||
</pre> | </pre> | ||
− | |||
− | |||
{{Template:Parallella Navbox}} | {{Template:Parallella Navbox}} |
Latest revision as of 01:02, 8 January 2015
Almost all these techniques have been incorporated into the latest official Parallella Ubuntu image now.
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 on Parallella E16/Zynq7020. Do not apply these tips to another version/board.
Please apply these instructions without modification.
Each configuration is carefully constructed and is interdependence, so if you modify something, it may get even worse.
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
- 1 Fix the permission of .gconf
- 2 ALSA configuration
- 3 Disable PCManFM Desktop mode
- 4 Speed up Firefox
- 5 Speed up SSH login
- 6 Remove xscreensaver
- 7 Make Leafpad the default editor
- 8 Install fake-hwclock
- 9 Clear persistent-net.rules
- 10 Enable devtmpfs
- 11 Configure Xorg
- 12 Reboot
- 13 (Optional) How to force framebuffer resolution to 1280x720
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
xscreensaver causes freeze on X startup. So remove it.
sudo apt-get purge xscreensaver
Note: It is insufficient to disable xscreensaver by "Screensaver" configuration. We have to "apt-get purge" to completely disable 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
Clear garbage configuration.
sudo rm /etc/udev/rules.d/70-persistent-net.rules
Enable devtmpfs
Create device nodes 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";
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" #Modes "1280x720" EndSubSection EndSection
Reboot
sync sudo reboot
(Optional) How to force framebuffer resolution to 1280x720
This increases desktop performance on a full-HD monitor.
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).
Then set the resolution in the settings above.
Edit bootargs and update dtb file.
bootargs = "root=/dev/mmcblk0p2 rw rootfstype=ext4 rootwait video=HDMI-A-1:1280x720";
Edit xorg.conf (Uncomment the "Modes" line and edit the resolution)
Modes "1280x720"
|