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2019年8月23日 星期五

Solution for Google Chrome Shortcut Name Changed to LINE after LINE Extension is Installed on Ubuntu

Solution for this issue
https://askubuntu.com/questions/851048/google-chrome-app-name-changed-after-installing-line-from-chrome-web-store/851061

Locate and edit ~/.local/share/applications/_opt_google_chrome_chrome.desktop where content is like below

[Desktop Entry]
Encoding=UTF-8
Version=1.0
Type=Application
Name=LINE
Icon=google-chrome
Exec=/opt/google/chrome/chrome
StartupNotify=false
StartupWMClass=Google-chrome
OnlyShowIn=Unity;
X-BAMFGenerated=true

Change value of Name, restart Chrome and the name shown on desktop should be changed.

If you are using Gnome Display Manager (GDM) and Chrome does not appear while searching on Activities, remove OnlyShownIn=Unity; and search again.

If this does not work, locate another folder where Google Chrome .desktop lies in, such as /usr/share/applications/, where Name is LINE, change the value and restart Chrome.

Good luck.

2013年6月6日 星期四

Build and install Linaro qEmu on Ubuntu

Install necessary packages

sudo apt-get install build-essential autoconf libtool libpixman zlibc libsdl-dev libsdl1.2-dev texinfo

Download and unpack Linaro qEmu

tar zxf qemu-linaro-<version>.gz

Build and install Linaro ARM qEmu

mkdir -p /home/<user_name>/bin/qemu/linaro-<version>/
cd $QEMU-LINARO-<version>-ROOT
./configure --target-list=arm-softmmu,arm-linux-user --prefix=/home/<user_name>/bin/qemu/linaro-<version>/arm
make 
make install

ARM EABI big endian

./configure --target-list=arm-softmmu,armeb-linux-user --prefix=/home/<user_name>/bin/qemu/linaro-<version>/armeb

2013年6月1日 星期六

UEFI Boot Linaro images on qEmu based BeagleBoard

Build EDK2 BeagleBoardPkg


Boot Linaro-m alip (Kubuntu 10.10)

Install needed packages
KPH$ sudo apt-get install parted dosfstools uboot-mkimage python-argparse python-dbus python-debian python-parted qemu-arm-static btrfs-tools command-not-found

Create and change to working directory
KPH$ cd $(WORKROOT)
KPH$ mkdir -p linaro-m/alip && cd linaro-m/alip

Get image and hardware packs
KPH$ wget http://releases.linaro.org/platform/linaro-m/alip/final/linaro-m-alip-tar-20101109-0.tar.gz http://releases.linaro.org/platform/linaro-m/hwpacks/final/hwpack_linaro-omap3_20101109-1_armel_supported.tar.gz

Install Linaro image tools
KPH$ sudo add-apt-repository ppa:linaro-maintainers/tools
KPHsudo apt-get update
KPHsudo apt-get install linaro-image-tools

Create u-boot and Linux Linaro image
KPHsudo linaro-media-create --image_file alip.img --dev beagle --binary linaro-m-alip-tar-20101109-0.tar.gz --hwpack hwpack_linaro-omap3_20101109-1_armel_supported.tar.gz
KPH$ sudo chmod a+rw alip.img

Replace u-boot.bin with UEFI
KPHmkdir /tmp/alip_boot/
KPHsudo mount -o loop,offset=$[63*512] $(WORKROOT)/linaro-m/alip/alip.img /tmp/alip_boot
KPH$ sudo cp $(EDK2ROOT)/edk2/Build/BeagleBoard/RELEASE_ARMGCC/FV/BEAGLEBOARD_EFI.fd /tmp/alip_boot/u-boot.bin
KPH$ sudo umount /tmp/alip_boot

ARM UEFI only supports zImage currently, so add zImage to the sdcard
KPH$ tar xzf hwpack_linaro-omap3_20101109-1_armel_supported.tar.gz
KPH$ cd pkgs/
KPH$ dpkg -x linux-image-2.6.35-1008-linaro-omap_2.6.35-1008.15_armel.deb .
KPH$ sudo mount -o loop,offset=$[63*512] $(WORKROOT)/linaro-m/alip/alip.img /tmp/alip_boot
KPH$ sudo cp boot/vmlinuz-2.6.35-1008-linaro-omap /tmp/alip_boot/zImage

Install ARM qEmu
KPH$ sudo add-apt-repository ppa:linaro-maintainers/tools
KPH$ sudo apt-get update
KPH$ sudo apt-get install qemu-user-static qemu-system

Test UEFI on qEmu
KPH$ sudo qemu-system-arm -M beagle -serial stdio -sd alip.img

Add a boot device entry and boot from it

The default boot selection will start in   7 seconds

[1] Linux from SD

[2] Shell
[3] Boot Manager
Start: 3
[1] Add Boot Device Entry
[2] Update Boot Device Entry
[3] Remove Boot Device Entry
[4] Update FDT path
[5] Return to main menu
Choice: 1
[1] SemihostFs (0 MB)
[2] boot (51 MB)
[3] VenHw(4D00EF14-C4E0-426B-81B7-30A00A14AAD6)
Select the Boot Device: 2
File path of the EFI Application or the kernel: zImage
Has FDT support? [y/n] nAdd an initrd: [y/n] yFile path of the initrd: uInitrd
Arguments to pass to the binary: console=ttyS2,115200n8 root=/dev/mmcblk0p2 rw earlyprintk fixrtc nocompcache vram=12M omapfb.mode=dvi:1280x720MR-16@60
Description for this new Entry: alip
[1] Add Boot Device Entry
[2] Update Boot Device Entry
[3] Remove Boot Device Entry
[4] Update FDT path
[5] Return to main menu
Choice: 5
[1] Linux from SD
[2] alip
[3] Shell
[4] Boot Manager
Start: 2
   PEI    661 ms
   DXE   4558 ms
   BDS   5380 ms
Total Time = 10600 ms
Uncompressing Linux... done, booting the kernel.
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 2.6.35-1008-linaro-omap (buildd@hawthorn) (gcc version 4.4.5 (Ubuntu/Linaro 4.4.4-14ubuntu5) ) #15-Ubuntu Fri Oct 22 11:56:29 UTC 2010 (Ubuntu 2.6.35-1008.15-linaro-omap 2.6.35.7)

(booting messages)

Seeing messages below on Terminal means boot is done
Welcome to Linaro!
 * Documentation:  http://www.linaro.org

1 package can be updated.
0 updates are security updates.

root@localhost:~# 

Takes a while for the GUI desktop on qEmu



























With similar steps you could try another images you like. 
Enjoy. :)

==================================================

Issues

SD: CMD12 in a wrong state
Mouse and keyboard do not work
==================================================

References

Follow steps in the link below first
https://wiki.linaro.org/Resources/HowTo/Qemu-beagleboard

Choose pre-built images of linaro-m (older Ubuntu Maverick version)
http://releases.linaro.org/platform/linaro-m/

Using UEFI to boot Linux
http://sourceforge.net/apps/mediawiki/tianocore/index.php?title=BeagleBoardPkg#Using_UEFI_to_boot_Linux

2013年5月28日 星期二

Solve Youtube playing too fast issue on Chrome on Ubuntu 13.04

The video and sound looks like fast forwarded when playing Youtube videos on Chrome on Ubuntu 13.04. I followed this discussion thread, and do steps below.

  • entered chrome://plugins
  • I found VLC multimedia Plugin is somehow related to video playing
  • Disabled VLC multimedia Plugin 

Then the issue is fixed.

==
Referenced from
http://askubuntu.com/questions/141692/youtube-movies-are-playing-too-fast-with-chrome

Installation of 64 bit Ubuntu 13.04 to VirtualBox 4.2.12 on Mac OS X 10.8.3

VirtualBox Guest Additions break desktop issue

With Ubuntu 12.10 and VirtualBox 4.2.12 the problem will be reproduced.
Try replace VirtualBox 4.2.12 with 4.2.10 for Ubuntu 12.10.

With Ubuntu 13.04 and VirtualBox 4.2.12 the problem will not be reproduced.
Guest Additions is still strongly recommended to install.

Solve the "no sound" issue

Machine settings
System/motherboard - Select ICH9 chipset
Audio - Select CoreAudio, then ICH AC97