Latest Ubuntu related questions

Score: 0
Tressie avatar
Installing Mesa OpenCL for Nvidia?
kp flag

Out of curiosity, I've tried to install OpenCL on my Ubuntu 21.04 installation.

I believe there may be OpenCL 1.1 support available in the open-source Nouveau video driver for Nvidia graphics cards. This is the driver I'm using (and am stuck with).

My Nvidia hardware is a dated 9400 GT card, but an upgrade to a 9800 GT is possible.

$ sudo apt install mesa-opencl-icd    # Install opencl, ICD and compilers ...
Score: -1
nicketik avatar
Ubuntu 20.04 install doesn't detect Windows 7 shows only USB in partition table
gi flag

I have never installed a Linux distribution before, and want to install Ubuntu 20.04 if possible alongside my fresh install of Windows 7 (update problems) on my HP ENVY 6 notebook.

Ubuntu install started and all works until "Installation type - window" first says:

Your installation medium is on /dev/sdc1. You will not be able to create, delete or resize partitions on this disk, but you may be abl ...

Score: 0
Delayed playback of videos (Youtube, VLC)
vn flag

I'm using an Upnp renderer device for my default computer audio. For this purpose I'm using https://github.com/masmu/pulseaudio-dlna.

My problem is that in spite all my efforts, there is a huge 2s latency in audio. I.e. it takes 2s between my click on "Play" button and hear the first beat with my ears.

Renderer device is not configurable, it has some buffer which has to be filled up first, then it will ...

Score: 0
Suraj Tirkey avatar
WIfi adapter not found and network UNCLAIMED showing for ubuntu 20.04
gy flag

Hi I just installed ubuntu 20.04, I can't see any option of wifi, when i am searching for wifi in setting it is showing, wifi adaptor is not found. Also after running the command lshw -C network , I am getting network unclaimed for wireless adapter. enter image description here

*-network UNCLAIMED description: Network controller product: RTL8821CE 802.11ac PCIe Wireless Network Adapter vendor: Realtek S ...

Score: 0
KneadToKnow avatar
Bash rsync script won't complete on large backups
us flag

Over the last year or so, I've be trying to learn bash scripting on Ubuntu (one 20.04 LTS box and one 21.04). I feel that my skills have been progressing nicely, but I'm at my wits end with one particular backup script I've written.

Long story short, if the backup script is only trying to backup my /home directory, it runs smoothly beginning to end, but if it is trying to backup my / directory, i ...

Score: 0
Adam Osharain avatar
How to get custom resolution on NVIDIA Xorg
tr flag

I'm trying to push a custom resolution using a custom resolution to a LED controller. I'm in the resolution range for the controller but I cant seem to get my Modeline to come up in xrandr. Would appreciate any insight. This would be a 3 port mosaic setup with all the same resolution. Also, I've seen examples with all the ports listed in metamode and not just the active ones, is this necessary? Here is  ...

Score: 0
Do I need to issue netplan apply after netplan try?
na flag

I know that netplan try has the automatic revert, but are there any other differences? Specifically, is it required to run netplan apply after I confirm netplan try ?

Score: 1
Sandeep Parameshwara avatar
Understanding the Htop output
gb flag

I am a recent user of Ubuntu. I am running some simulations in my Ubuntu 20.04 which don't run successfully. When I look at the usage, I see numbers like these.

enter image description here

Does this mean that my machine is using all the resources and it can't do more computation?

I see that memory is not fully used up. If it is not about the computational limit, I think the problems are coming from my simulation itself. Coul ...

Score: 0
JXuan avatar
Uninstalling and reinstalling nvidia driver (installed via "Software & Updates" Ubuntu 18.04)
nl flag

My current nvidia-driver-470 was installed via “Software & Updates”. Since I am experiencing frequent and sudden freezes, I would like to first uninstall and reinstall the driver.

I am not able to find detailed steps online to uninstall the driver (installed via “Software & Updates”).

Commonly suggested nvidia-installer --uninstall is not available. sudo apt-get remove --purge ‘^nvi ...

Score: 0
Patrick McManus avatar
Kubuntu 20.04 black screen on initial power on - new problem
cn flag

My HP Elite desktop computer (quad core Intel i5, 12 GB RAM) recently developed a problem after running problem-free on Kubuntu 20.04 for over a year. Now, when I first power on in the morning, I can hear it booting but the monitor remains blank. There is a signal to the monitor because its power indicator remains green, whereas it turns yellow when there is no input signal. No key combination can bring ...

Score: 2
Cornelius Roemer avatar
How to install package xorg-server
cn flag

I'm following this recipe to build xf86-input-libinput from source with a patch applied.

The command ./configure --prefix=/usr gives me an error that I haven't been able to resolve:

checking for xorg-server >= 1.10 xproto inputproto >= 2.2... no
configure: error: Package requirements (xorg-server >= 1.10 xproto inputproto >= 2.2) were not met:

No package 'xorg-server' found

Consider ad ...
Score: 0
SureAns Incorporation avatar
Postfix exit code 75
pk flag

When I want to update or upgrade anything. or can install any kinks of software. The terminal shows this message "1 not fully install or remove". and installing process stops:

0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
**1 not fully installed or removed.**
After this operation, 0 B of additional disk space will be used.

Finally this error message is shown, and installing or updatin ...

Score: 0
xcalibur Kahn avatar
crontab issues :x
kp flag

so I have a scrapy script that I'm trying to execute on digitalocean droplet/ubuntu vm.

So, after installing/updating ubuntu, I created a test.py and then executed it using crontab and it worked fine.

I then installed scrapy using pip3. Then I cloned my scrapy script to ubuntu from github, and executed it manually and it worked exactly as it did on my local machine.

Next step I created crontab and it f ...

Score: 0
20.04 Installer Crashing and Freeze on Bootup
cn flag

I have a Macbook Pro, 16 gigs RAM, 250 gig SSD, Model A-1398. I had been running 16.04 LTS 32 bits for years without a problem, and decided to upgrade to 20.04 LTS, as not many apps were supported for 32 bits anymore. I made a bootable USB stick, and it did boot on that. Backed all the data in the laptop, as it was easier to do a clean install and just put that data back in. I noted that when it booted, ...

Score: 9
Apurva Gaurav avatar
I just deleted everything on my Windows system through the ubuntu subsystem. Can I recover the data?
pl flag

I wanted to delete all my Ubuntu related files from the Ubuntu subsystem within Windows. So I just used sudo rm -rf /* in the Ubuntu home directory.

I did sudo because earlier there were a lot of permissions denied. Now when there were fewer permissions denied, I started getting all sorts of other errors from Windows and then I realized it was also deleting files outside of Ubuntu.

Now everything ...

Score: 0
paulhector avatar
Restoring [K]Ubuntu 20.04 after removing Python with apt-get
br flag

TLDR: I need to restore my distro after sudo removing all Python dependencies

I did the stupid thing and now I need to fix it. I wanted to do a clean install of Python for a class, uninstalling all programs that I installed using the command our teacher gave us (basically, remplacing apt-get install in the line he gave us to install Python with apt-get remove). So I ran the following:

sudo apt-get  ...

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