Adam Goldman's questions -ubuntu

Adam Goldman

Asked: 2021-08-02 21:09:59 +0800 CST

how to Identify which process is causing computer to freeze?

1

EDIT 2
While it didn't answer my original question, since increasing the swap to 4G I don't experience any more computer freezes, so I accepted the answer

EDIT

As @heyynema suggested, I ran the following operations

I'll report back in a few days whether this has solved/improved the issue

OP

I'm running multiple dev related processes on my machine in the background, i.e. vscode, dev servers, etc

every once in a while my laptop kinda freezes almost entirely for about 30 seconds, and then everything goes back to normal.

during the "freeze" if I move my mouse I can see the cursor moving around very slowly with a huge lag.

Is there a way to identify which process is causing this?

I don't know much about memory and monitoring, is there an alert I should set up, i.e. "if any process exceeds X memory then log Y"?

Adam Goldman

Asked: 2021-06-25 22:48:01 +0800 CST

open only new terminal window in custom directory

1

I'm opening the terminal by pressing Window + 2. I want that to open in ~/some-custom-directory

Thing is, I want new tabs within the terminal window to NOT be affected by this behavior, i.e. if I'm in ~/other-directory and open a new tab, I want it to open in the same directory ~/other-directory, and not default to ~/some-custom-directory

Is this possible? Can I change the behavior of opening a terminal window without it affecting opening a terminal tab?

Adam Goldman

Asked: 2019-07-24 08:32:05 +0800 CST

remap Caps + L to dash

6

I want to remap the four keys ()-= to Caps+jkl; respectively. The idea is to not leave the home row for typing these characters which are very common in programming.

This includes pressing Caps Shift l to produce _, which is the equivalent of Shift -

I also want Caps to act as ESC when pressed on it's own.

What I've tried already:

https://github.com/simos/keyboardlayouteditor - Installation has syntax error
https://www.bedroomlan.org/projects/evrouter/ - No support for multi keys
editing /usr/share/X11/xkb/symbols/pc - I don't see an option for combinations, and couldnn't figure it out from the docs
evdevremapkeys - no support as described in this issue
xdotool - works but it's very slow ...
Mapping directly in vim - that would be my fallback, tho I want this available system-wide

Any help appreciated, probably some guidance would be enough for me to crack this one.

Thanks!

Adam Goldman

Asked: 2019-06-16 12:23:17 +0800 CST

How to have two separate Chrome dock items

4

I'm using super+1 to access the first item on the dock/launcher, which is Google Chrome.

I want to have super+2 bound to another instance of Chrome, so that I could go between them with my keyboard.

I have tried creating a dedicated chrome profile (Profile 4) and adding a chrome-2.desktop entry with the following:

#!/usr/bin/env xdg-open
[Desktop Entry]
Version=1.0
Type=Application
Terminal=false
Icon[en_US]=google-chrome
Exec=google-chrome --profile-directory=Profile\ 4
Name[en_US]=Chrome-Profile\ 4
Name=Chrome-Profile\ 4
Icon=google-chrome

Now I have 2 Chrome icons in Applications:

and I can indeed drag&drop the newly created Chrome to my launcher:

The problem is, when I click it, or do super+2 in keyboard, it opens a new window but binds it to the first dock item, so I get two Chrome instances on the first item, and nothing on the second one:

What am I missing here? Is this even possible? I don't mind downloading anything the would be nice to solve it in a "clean" way.

strong textThings tried: adding StartupWmClass=Profile4 and Exec=google-chrome --profile-directory=Profile\ 4 --class Profile4 as mentioned in the comments. the result is still opening the windows under the first chrome dock item, and displaying this:

Adam Goldman

Asked: 2018-05-23 10:05:26 +0800 CST

Short battery X1C6 Ubuntu 18.04

0

I have a new Lenovo x1c6 which is reported to have 12+ hours battery life by some users.

Mine drains after 4-5 hours, which is roughly the same time I got on my previous 2 y/o $800 Acer laptop with ubuntu 16.04, that's why I suspect the problem is in software.

It also seems like it won't go into a deep sleep/suspend, since a fully charged battery doesn't survive the night (empty after 8-10 idle hours)

I also have this systemd-journald issue that might be related (it happened a few times after resuming from suspend/sleep)

And I've seen in some places people talking about s3 support in ubuntu 16.04, I'm not sure if it's relevant but here is my output:

➜  ~ dmesg | grep -i acpi | grep supports
[    0.206325] ACPI: (supports S0 S4 S5)
[    0.306402] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
➜  ~ cat /sys/power/state
freeze mem
➜  ~ cat /sys/power/mem_sleep
[s2idle]

After using Linux for 8 years, I hope I won't have to switch back to windows.

Adam Goldman

Asked: 2018-05-23 09:36:51 +0800 CST

systemd-journald crashed with SIGABRT in pthread_sigmask()

28

Fresh install of Ubuntu 18.04 on a new Lenovo x1c6, I'm getting this error sometimes after resuming from suspend.

I have no idea what it means, and search online leads to a bug report that doesn't exist

Might be related: my battery life is 4-5 hours, and this Lenovo is reported by other Ubuntu users to have 10+ hours. See related thread

The answer in that thread suggests running the following:

➜  ~ journalctl
-- Logs begin at Fri 2018-05-18 13:10:19 CEST, end at Tue 2018-05-22 19:25:25 CEST. --
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: Linux version 4.15.0-20-generic (buildd@lgw01-amd64-039) (gcc version 7.3.0 (Ubu
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-20-generic root=UUID=2da2702a-fc2a
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: KERNEL supported cpus:
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel:   Intel GenuineIntel
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel:   AMD AuthenticAMD
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel:   Centaur CentaurHauls
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: x86/fpu: Supporting XSAVE feature 0x008: 'MPX bounds registers'
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR'
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: x86/fpu: xstate_offset[3]:  832, xstate_sizes[3]:   64
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: x86/fpu: xstate_offset[4]:  896, xstate_sizes[4]:   64
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: x86/fpu: Enabled xstate features 0x1f, context size is 960 bytes, using 'compact
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: e820: BIOS-provided physical RAM map:
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: BIOS-e820: [mem 0x0000000000000000-0x0000000000057fff] usable
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: BIOS-e820: [mem 0x0000000000058000-0x0000000000058fff] reserved
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: BIOS-e820: [mem 0x0000000000059000-0x000000000009cfff] usable
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: BIOS-e820: [mem 0x000000000009d000-0x00000000000fffff] reserved
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: BIOS-e820: [mem 0x0000000000100000-0x0000000044f7dfff] usable
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: BIOS-e820: [mem 0x0000000044f7e000-0x0000000044f7efff] ACPI NVS
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: BIOS-e820: [mem 0x0000000044f7f000-0x0000000044f7ffff] reserved
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: BIOS-e820: [mem 0x0000000044f80000-0x000000004e8d9fff] usable
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: BIOS-e820: [mem 0x000000004e8da000-0x000000004ff1afff] reserved
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: BIOS-e820: [mem 0x000000004ff1b000-0x000000004ff99fff] ACPI NVS
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: BIOS-e820: [mem 0x000000004ff9a000-0x000000004fffefff] ACPI data
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: BIOS-e820: [mem 0x000000004ffff000-0x000000004fffffff] usable
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: BIOS-e820: [mem 0x0000000050000000-0x0000000057ffffff] reserved
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: BIOS-e820: [mem 0x0000000058600000-0x000000005c7fffff] reserved
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: BIOS-e820: [mem 0x00000000f0000000-0x00000000f7ffffff] reserved
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: BIOS-e820: [mem 0x00000000fe010000-0x00000000fe010fff] reserved
May 18 13:10:19 goldy-ThinkPad-X1-Carbon-6th kernel: BIOS-e820: [mem 0x0000000100000000-0x00000004a27fffff] usable

His problem was caused by fixed his high CPU problem by doing this:

I fixed it by adding a pci=nomsi parameter to the GRUB_CMDLINE_LINUX_DEFAULT property(you can find and edit it in: sudo vim /etc/default/grub)

After adding the parameter update the grub: sudo update-grub and then reboot. Then run top in the terminal, and see whether that fixed it.

I don't want to mess with grub without further advice. Too many bricked computers running around these days :)

Thanks in advance for any help!

Adam Goldman

Asked: 2017-08-18 21:13:48 +0800 CST

Kazam webcam is black / not working

5

kazam 1.5.3
ubuntu 16.04.2 LTS xenial

screen recording works fine, but adding the webcam just adds a black square in the top right corner, which I can move with alt + click & drag

If I do a webcam ONLY recording (no screen), and then hit "finish recording", it just stops recording and there's no prompting to save the file.

Any ideas?

Adam Goldman

Asked: 2017-03-13 23:31:34 +0800 CST

Ubuntu flash disk not booting on Acer Aspire

4

I just bought two sandisk usb sticks, 16gb and 32gb, and used startup disk creator to install 16.04.02 from official site in both of them.

When I reboot my laptop with the any of the usbs inside, it just boots my current ubuntu installation. Nothing new.

This is my second time installing ubuntu on this machine from a flash drive, so I know it "should" work.

I've verified the installation file:

$ md5sum ubuntu-16.04.2-desktop-amd64.iso
1400884cec8e40a1a876b2678f81494b  ubuntu-16.04.2-desktop-amd64.iso

Matches the official hash

I've set the BIOS to boot first from USBs:

Following some threads on ask ubuntu and SO, here's what I've already tried and (hopefully) some relevant info:

info

Laptop: Acer Aspire V13 V3-372-57M8

$ sudo fdisk -l /dev/sdb1
Disk /dev/sdb1: 1.5 GiB, 1554186240 bytes, 3035520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x15e2543d

Device      Boot Start     End Sectors  Size Id Type
/dev/sdb1p1 *        0 3035519 3035520  1.5G  0 Empty
/dev/sdb1p2      14432   19295    4864  2.4M ef EFI (FAT-12/16/32)

$ lsof /dev/sdb1 # this yields no output

$ sudo file -s /dev/sdb1
/dev/sdb1: DOS/MBR boot sector ISO 9660 CD-ROM filesystem data (DOS/MBR boot sector) 'Ubuntu 16.04.2 LTS amd64' (bootable); partition 2 : ID=0xef, start-CHS (0x3ff,254,63), end-CHS (0x3ff,254,63), startsector 14432, 4864 sectors

Things tried

Booting with secured boot disabled

$ sudo umount /dev/sdb1
$ sudo mkfs -t vfat /dev/sdb1
mkfs.fat 3.0.28 (2015-05-16)

and then using startup disk creator again, and rebooting. no luck.

Also tried wiping the usb with gparted, and creating a new NTFS partition and then using startup creator, no luck.

Adam Goldman

Asked: 2017-01-13 12:46:32 +0800 CST

Resize images, keep ratio, with size constraints

2

I have a bunch of images in a folder with different dimensions and ratio.

I want to shrink all of them while keeping a minimum height and width, while keeping the same ratio.

Something like:
convert -resize -minwidth 300 -minheight 200 -keep-ratio src *.jpg

Then all shrinked images would have at least 300 width and 200 height, and they will retain the original ratio.

Is this even possible without some heavy scripting?

Things I've tried:

➜  swazidowners mogrify -resize 300x200^ "*.jpg"
zsh: no matches found: 300x200^
➜  swazidowners mogrify -resize 300x200^ bbq.jpg
zsh: no matches found: 300x200^
➜  swazidowners mogrify -resize 300x200 bbq.jpg # just to show that it works without ^ character
➜  swazidowners

System info:
OS: Ubuntu 16.04x64

$ mogrify -version  
Version: ImageMagick 6.8.9-9 Q16 x86_64 2016-11-29 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2014 ImageMagick Studio LLC
Features: DPC Modules OpenMP
Delegates: bzlib cairo djvu fftw fontconfig freetype jbig jng jpeg lcms lqr ltdl lzma openexr pangocairo png rsvg tiff wmf x xml zlib

Adam Goldman

Asked: 2016-09-05 07:08:52 +0800 CST

making file executable works only from GUI, not Terminal

0

From GUI this works: open file properties menu -> Permissions Tab -> check "Allow executing file as a program"

From terminal running chmod -x filename doesn't do anything, nor outputs anything.

Things I've tried:

# 1
$ chown $USER filename
$ sudo chmod -x filename

# 2 
$ sudo chmod -x filename

# 3
$ chmod -777 filename

Any ideas?

Thanks in advance :)

Adam Goldman

Asked: 2016-08-10 12:11:15 +0800 CST

Network disabled - device not ready 16.04

1

Laptop: Acer V 13
no preinstalled OS. Freshly installed ubuntu 16.04.

At the top right corner, when I click the network manager, no wifi networks are found, and there's a grayed out device not ready text instead.

Ethernet cable is working (this is how I'm posting this ...)

I'm in a co working space with many networks and users so I know the problem is on my end.

Below you will find everything I've tried followed by every piece of information I thought might b relevant.

I also logged the result of this script which has some additional info, and tailed syslog for a while.

Thanks in advance, you rock! :)

Things I've tried:

sudo service network-manager start

(No output)

sudo service network-manager stop && sudo service network-manager start

No output, network icon disappears and reappears from tray

$ sudo ifup lo
ifup: interface lo already configured`

$ sudo ifup enp2s0
Unknown interface enp2s0

Using wicd network manager. I didn't detect any wireless network with that either. (I'm actually glad it didn't work, seems like a bad idea anyway)

sudo service networking restart

sudo service NetworkManager restart

sudo echo "blacklist ath10k_pci" >> /etc/modprobe.d/blacklist.conf

After rebooting, any reference to wifi was gone from the network manager menu in the tray

$ sudo apt-get install bcmwl-kernel-source 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  gksu libgksu2-0 libglade2-0 python-cairo python-dbus python-gi python-glade2 python-gobject python-gobject-2 python-gtk2 python-notify python-wicd wicd-daemon
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
  dkms
The following NEW packages will be installed:
  bcmwl-kernel-source dkms
0 upgraded, 2 newly installed, 0 to remove and 315 not upgraded.
Need to get 1581 kB of archives.
After this operation, 8278 kB of additional disk space will be used.
Do you want to continue? [Y/n] 
Get:1 http://pl.archive.ubuntu.com/ubuntu xenial-updates/main amd64 dkms all 2.2.0.3-2ubuntu11.1 [66,2 kB]
Get:2 http://pl.archive.ubuntu.com/ubuntu xenial/restricted amd64 bcmwl-kernel-source amd64 6.30.223.248+bdcom-0ubuntu8 [1515 kB]
Fetched 1581 kB in 0s (4809 kB/s)            
Selecting previously unselected package dkms.
(Reading database ... 206160 files and directories currently installed.)
Preparing to unpack .../dkms_2.2.0.3-2ubuntu11.1_all.deb ...
Unpacking dkms (2.2.0.3-2ubuntu11.1) ...
Selecting previously unselected package bcmwl-kernel-source.
Preparing to unpack .../bcmwl-kernel-source_6.30.223.248+bdcom-0ubuntu8_amd64.deb ...
Unpacking bcmwl-kernel-source (6.30.223.248+bdcom-0ubuntu8) ...
Processing triggers for man-db (2.7.5-1) ...
Setting up dkms (2.2.0.3-2ubuntu11.1) ...
Setting up bcmwl-kernel-source (6.30.223.248+bdcom-0ubuntu8) ...
Loading new bcmwl-6.30.223.248+bdcom DKMS files...
First Installation: checking all kernels...
Building only for 4.4.0-34-generic
Building for architecture x86_64
Building initial module for 4.4.0-34-generic
Done.
wl:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/4.4.0-34-generic/updates/dkms/
depmod....
DKMS: install completed.
modprobe: ERROR: could not insert 'wl': Required key not available
update-initramfs: deferring update (trigger activated)
Processing triggers for shim-signed (1.18~16.04.1+0.8-0ubuntu2) ...
Processing triggers for initramfs-tools (0.122ubuntu8) ...
update-initramfs: Generating /boot/initrd.img-4.4.0-34-generic
W: Possible missing firmware /lib/firmware/i915/skl_guc_ver6.bin for module i915_bpo

Signed and loaded module wl:

$ openssl req -new -x509 -newkey rsa:2048 -keyout MOK.priv -outform DER -out MOK.der -nodes -days 36500 -subj "/CN=awesome key/"
$ sudo /usr/src/linux-headers-$(uname -r)/scripts/sign-file sha256 ./MOK.priv ./MOK.der $(modinfo -n wl)
$ sudo mokutil --import MOK.der
$ reboot
$ sudo modprobe wl # no error output this time :)

Reinstalling some packages:

$ sudo apt-get purge bcmwl-kernel-source
$ sudo apt-get install build-essential dkms linux-headers-generic
$ sudo apt-get update
$ sudo apt-get install bcmwl-kernel-source
$ modprobe -r b43 bcma
$ modprobe -r brcmsmac bcma
$ modprobe -r wl
$ modprobe wl
$ reboot

Relevant Info:

$ rfkill list
0: acer-wireless: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: hci0: Bluetooth
    Soft blocked: yes
    Hard blocked: no
2: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

$ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

$ iwconfig
wlp3s0    IEEE 802.11abgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=0 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          
enp2s0    no wireless extensions.

lo        no wireless extensions.

$ sudo lshw -c network
  *-network               
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: enp2s0
       version: 15
       serial: 30:65:ec:9a:29:e2
       size: 100Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168h-2_0.0.2 02/26/15 ip=192.168.0.103 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
       resources: irq:124 ioport:3000(size=256) memory:a1204000-a1204fff memory:a1200000-a1203fff
  *-network DISABLED
       description: Wireless interface
       product: QCA6174 802.11ac Wireless Network Adapter
       vendor: Qualcomm Atheros
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlp3s0
       version: 32
       serial: c8:ff:28:00:90:51
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=ath10k_pci driverversion=4.4.0-34-generic firmware=WLAN.RM.2.0-00180-QCARMSWPZ-1 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn
       resources: irq:127 memory:a1000000-a11fffff

lspci -knn | grep Net -A2
03:00.0 Network controller [0280]: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter [168c:003e] (rev 32)
    Subsystem: Lite-On Communications Inc QCA6174 802.11ac Wireless Network Adapter [11ad:0807]
    Kernel driver in use: ath10k_pci
    Kernel modules: ath10k_pci, wl

in the next file, I've tried to set managed=true and reboot, tho somewhere it got reverted back to managed=false

$ cat  /etc/NetworkManager/NetworkManager.conf
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq

[ifupdown]
managed=false

    $ dmesg | grep "\(disabled\|switch\)"
[    0.000000] x86/fpu: Using 'eager' FPU context switches.
[    0.000000]   6 disabled
[    0.000000]   7 disabled
[    0.000000]   8 disabled
[    0.000000]   9 disabled
[    0.000000] ACPI: Early table checksum verification disabled
[    0.069778] DMAR-IR: x2apic is disabled because BIOS sets x2apic opt out bit.
[    0.237651] pci 0000:00:14.0: System wakeup disabled by ACPI
[    0.244497] pci 0000:00:1c.0: System wakeup disabled by ACPI
[    0.245318] pci 0000:00:1c.4: System wakeup disabled by ACPI
[    0.246125] pci 0000:00:1c.5: System wakeup disabled by ACPI
[    0.248614] pci 0000:00:1f.3: System wakeup disabled by ACPI
[    0.249896] pci 0000:02:00.0: System wakeup disabled by ACPI
[    0.256218] pci 0000:03:00.0: System wakeup disabled by ACPI
[    0.937596] audit: initializing netlink subsys (disabled)
[    0.942695] Console: switching to colour frame buffer device 240x67
[    0.970222] i8042: PNP: PS/2 appears to have AUX port disabled, if this is incorrect please boot with i8042.nopnp
[    1.103625] fb: switching to inteldrmfb from EFI VGA
[    1.103641] Console: switching to colour dummy device 80x25
[    1.254041] Console: switching to colour frame buffer device 240x67
[ 1117.284285] xhci_hcd 0000:00:14.0: System wakeup disabled by ACPI
[ 1117.292227] rtc_cmos 00:03: System wakeup disabled by ACPI
[ 1117.292230] r8169 0000:02:00.0: System wakeup disabled by ACPI

$ ifconfig
enp2s0    Link encap:Ethernet  HWaddr 30:65:ec:9a:29:e2  
          inet addr:192.168.0.103  Bcast:192.168.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:26514 errors:0 dropped:0 overruns:0 frame:0
          TX packets:18223 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:32858129 (32.8 MB)  TX bytes:2703210 (2.7 MB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:2379 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2379 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1 
          RX bytes:217304 (217.3 KB)  TX bytes:217304 (217.3 KB)

Adam Goldman

Asked: 2016-08-10 07:08:35 +0800 CST

16.04 not bootable - fresh laptop, no preinstalled OS

0

Laptop: acer, Aspire V 13 V3-372-57M8

Notes:

I'm able to load ubuntu from flash disk (which is how I am writing this post)
holding shift after reboot wont bring up the grub menu
Using boot repair didnt help, here is the log. Note the "No boot loader is installed in the MBR of /dev/sda."
In some online resources I read it is not an issue with new systems.
adding "boot" flag to /dev/sda2 didn't work (file system ext4, see screenshot)
I'm trying to boot in UEFI mode

I tried for a couple of hours to get this to work, no luck so far ...

Adam Goldman

Asked: 2016-07-13 01:41:40 +0800 CST

remove all npm links

1

I've linked few projects together and I'm getting some unpredictable behavior, so I want to remove all links and "start fresh"

I've googled this for a while and can't seem to find something that works it's surprising to me that something like that isn't documented anywhere.

is there's something I'm missing?

Adam Goldman

Asked: 2016-03-18 09:10:06 +0800 CST

terminal http command

7

I've seen someone uses this format to make http requests:

http POST http://url.com arg=value

I can't seem to find how to do that

google searches only show cUrl and wget. Also tried downloading http package but there is none.

Any ideas?

Adam Goldman

Asked: 2014-11-09 15:42:58 +0800 CST

xdotool commands run one by one

1

I have this bash script:

#!/bin/bash

function foo() {
  terminator
  xdotool type 'myalias'
  xdotool key Return
  xdotool key ctrl+shift+t
  xdotool type 'cd ~/git/apps/myapp/client && gulp'
  xdotool key Return
}

foo

I run this script from a key shortcut.

It opens the terminal, but only executes the following commands after I close the terminal

Any idea around this?

Adam Goldman

Asked: 2014-11-08 14:51:20 +0800 CST

Terminator - keyboard shortcut to open multiple tabs

2

I want to bind a custom hotkey to opening terminator with two tabs, each tab executing different command

banging my head for hours here :)

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info

Things tried

Resize images, keep ratio, with size constraints

making file executable works only from GUI, not Terminal

Network disabled - device not ready 16.04

Relevant Info:

16.04 not bootable - fresh laptop, no preinstalled OS

remove all npm links

terminal http command

xdotool commands run one by one

Terminator - keyboard shortcut to open multiple tabs

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