## Ubuntu 18.04.3 doesn’t recognize 2. montor after running these commands

I executed these commands:

sudo bash -c "echo blacklist nouveau > /etc/modprobe.d/blacklist-nvidia-nouveau.conf"  sudo bash -c "echo options nouveau modeset=0 >> /etc/modprobe.d/blacklist-nvidia-nouveau.conf"  sudo update-initramfs -u  sudo reboot 

But after rebooting, my 2. monitor is black and Ubuntu is not able to detect it. I went to Settings->Devices->Display and now I can only see my main monitor and not my second. Before running these commands, everything worked. How can I redo this?

I ran this commands in reference to this post.

## Ubuntu won’t recognize Razer Core X Chroma

I think this is the first time I haven’t been able to find a solution or piece together one on Google before so here I go.. I have a 13″ Razer blade and a Razer Core X Chroma. It connects perfectly and easily over Windows but I’d like to be able to make it work on Ubuntu too. I’m on a fresh install other than the fact I updated some intel drivers and installed amd drivers (for my Radeon RX Vega 64 from the amdgpu-install script). The first (and maybe largest hurdle) is that I can’t get ubuntu to recognize the dang thing’s even plugged in. The settings gui just shows the standard “Thunderbolt could not be detected.” grayed out error while lspci shows the following output-

  lspci 00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 08) 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07) 00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21) 00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21) 00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21) 00:15.1 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #1 (rev 21) 00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21) 00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #3 (rev f1) 00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1) 00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1) 00:1f.0 ISA bridge: Intel Corporation Intel(R) 100 Series Chipset Family LPC Controller/eSPI Controller - 9D4E (rev 21) 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21) 00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21) 00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21) 01:00.0 Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (rev 32) 02:00.0 PCI bridge: Intel Corporation JHL6340 Thunderbolt 3 Bridge (C step) [Alpine Ridge 2C 2016] (rev 02) 03:00.0 PCI bridge: Intel Corporation JHL6340 Thunderbolt 3 Bridge (C step) [Alpine Ridge 2C 2016] (rev 02) 03:01.0 PCI bridge: Intel Corporation JHL6340 Thunderbolt 3 Bridge (C step) [Alpine Ridge 2C 2016] (rev 02) 03:02.0 PCI bridge: Intel Corporation JHL6340 Thunderbolt 3 Bridge (C step) [Alpine Ridge 2C 2016] (rev 02) 04:00.0 System peripheral: Intel Corporation JHL6340 Thunderbolt 3 NHI (C step) [Alpine Ridge 2C 2016] (rev 02) 05:00.0 PCI bridge: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] (rev 02) 3b:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981 
Also boltctl power -q shows the following-
supported: yes power state: on 1 active power guards:   guard '4'    ├─ who: boltctl    └─ pid: 2650 
Both boltctl list and boltctl domains show absolutely nothing. I honestly don’t care about using the GPU, I just want to be able to use my keyboard and mouse that’s hooked to it so if anyone can help me, I promise you \$  20 anyway you want it.


## Ubuntu 19.04 Installer Will not Recognize Win 10 for Dual Boot Install

Im new to Linux and know almost nothing about bootloaders and BIOS. Im trying to install Ubuntu 19.04 on my win10 machine, but after 7 hours have been unable to install, as Ubuntu will not recognize that win10 exists on the filesystem and will only allow the Erase option.

I have gone into the BIOS and played with every combination of settings that have been mentioned on several guides/questions relating to this problem

What im Trying to install: Ubuntu 19.04 from a USB drive (called Ubuntu amdx64)

What im trying to install on: Windows 10 version 1903 Build 18362.388

I formatted the drive with Rufus using both of the following settings Rufus settings 1 Rufus settings 2

Things that have been done since I started: Disabled Fast Boot Disabled Fast Startup in Win10 Made sure C: drive was error free and ran chkdsk

I have performed any combination of:

Here are my system specs My machine info

As noted i have looked through several guides but still i cant make them coexist at all.

Thank you for any and all responses

EDITS: changed out machine info screenshot as it did not load properly

## What classifier can recognize differences in two text strings immediately?

I’m playing around with the TextBlob library for python. It has in it a NaiveBayesClassifier as well as a DecisionTreeClassifier. However, they do not work for my purposes. I need to be able to look at differences between strings, preferably in form that lends itself to template-like substitution of the different parts.

So for example, suppose we train with: $$\psi : \ aAb \mapsto 0, \ a b \mapsto 1,$$ Then it should automatically recognize, either, the absence of the $$A$$, or the presence of something else besides the $$A$$:

$$\psi(ac) = 1 \$$

for example, is possible immediately after the two samples. Maybe there should be settings to choose what / how the differences are made.

I’d also like it to be able to create “substitution templates” between the input and output of a mapping. So if $$aAb \mapsto cAd$$ is a mapping, then it knows when it sees $$aBb$$ to map it to $$cBd$$. I think there should be some interesting math involved in this problem, intuitively.

Take a look at this image:

In the language of category theory, it commutes. But it has two mappings from $$aAb$$ so I don’t know how we’d handle that in terms of classification.

$$a, b, c, A,B,C,D$$ are all strings, the capital letters were just for convenience.

## 18.04 does not recognize monitors or drivers after graphic card change

Before I was working with build in graphic card, all worked fine. Now I set nvidia quadro p620 with DP connection.

The problem: Only one monitor recognized and it’s resolution is 800×600, nothing more than this in settings. Nvidia X server settings not load at all.

I’ve reinstalled drivers x times through console, through “sofware & updates”, in terminal mode, I’ve downloaded the driver from nvidia website and ./run it. Nothing helps.

So what I have in

xrandr  xrandr: Failed to get size of gamma for output default Screen 0: minimum 800 x 600, current 800 x 600, maximum 800 x 600 default connected primary 800x600+0+0 0mm x 0mm    800x600       75.00*      lspci -k | grep -iEA5 'vga|display|3d'   01:00.0 VGA compatible controller: NVIDIA Corporation GP107GL [Quadro P620] (rev a1)     Subsystem: NVIDIA Corporation Device 1264     Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia 01:00.1 Audio device: NVIDIA Corporation GP107GL High Definition Audio Controller (rev a1)     Subsystem: NVIDIA Corporation GP107GL High Definition Audio Controller     Kernel driver in use: snd_hda_intel 

## Opening document from Search results – This action couldn’t be performed because Office doesn’t recognize the command it was given

Hi I am trying to open an Office document by clicking on the search results document title, however an error box pops up saying:

This action couldn't be performed because Office doesn't recognize the command it was given.

From the same computer with the above error, it can open in Chrome OK.

If I copy the url of the document and paste it in to a new Window in IE, the document opens OK.

If I right click and open the document in a new tab in IE, again it opens OK.

It is only when left clicking and trying to open the document from the Search results window.

On another computer I get the same error as above in IE, and yet another third computer again it works in IE!

Screenshot of the issue is below:

## Lubuntu won’t recognize any USB device

So this is a bit weird cyade this came out of nowhere, as I didn’t used to have any problem on this aspect

But in short, my system won’t recognize neither my android phone nor my kindle. Zero, nada, nothing shows. My devices act as if connected to a power supply but nothing else (USB debug is on in my android phone). This is particularly troublesome as I use my phone as an USB tethering devices since my USB wifi dongle died

The devices don’t show up neither on the disk application nor when usen the lsusb command

For testing purposes I connected an old Realtek USB dongle and it shows up (sadly there are no drivers for Linux..). My keyboard is also connected through USB and works fine.

It a the same cable I’ve been using so far, and testing with another cable the problem persists.

This was after I phone call, it could be possible that idle clicking led me to dismiss/active some kind of pop-up notification/configuration?

Sorry about formatting, doing this on my phone

## Thunderbolt 1 port doesn’t recognize Thunderbolt 2 drive on boot

I am looking to find a way to execute the logic the thunderbolt system executes when it detects a newly hot-plugged hard drive (block device). I can get my drive recognized, and it works fine, just not on boot.

Hardware: Mac Mini Server 2011 – with one Thunderbolt 1 port connected to a Promise Pegasus2 R8 Thunderbolt 2 Raid Enclosure (presents as 1 block device)

Software: Ubuntu Server 18.04.3 LTS

Once the server is booted, if I unplug the drive for 10 seconds, and then plug it back into the Mac Mini, the drive will go through a 5-10 second startup sequence finishing with it’s LED going blue and 2 seconds later a few final beeps. At that point, if I do an lsblk, I see the block device, and can partition it, make a filesystem, mount it etc.

After a reboot, the system does not see the block device, and I have to unplug+replug to get it recognized.

I don’t know if what I am asking is possible. It’s possible that logic can only be triggered by a hot-plug event due to the nature of Thunderbolt 1. I have a Mac Mini 2014 with Thunderbolt 2 ports with a similar drive running the same OS, and it sees it’s drive on boot.

Or there might not be a control interface/tool to the driver subsystem. The bolt package has a boltctl tool which issues commands to a boltd, but they seem to relate to security, and when I install the bolt package, I can see the drive using boltctl, but there is no block device mapped to it unless I unplug+replug. I also don’t need the bolt package installed to get my block device.

Hoping someone can shed some light on triggering that logic via software for me.

## I just installed dual boot Ubuntu 19.04, and GRUB doesn’t recognize my keyboard

I can’t get past the GRUB 2.02 screen because I can’t interact with it at all. I can’t access my BIOS because it loads GRUB first.

Are there any suggestions that allow me to skip GRUB or access BIOS? I can’t remember if legacy USB is enabled or not. My computer uses a GIGABYTE X570 Aorus Elite rev 1.0 with a ryzen 3700x and Radeon Rx 5700. My motherboard does not have any ps/2 slots.