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What is the most duct-tape thing you've done to Linux?

tell me the most ass over backward shit you do to keep your system chugging?
here’s mine:
sway struggles with my dual monitors, when my screen powers off and back on it causes sway to crash.
system service ‘switch-to-tty1.service’


<span style="color:#323232;">[Unit]
</span><span style="color:#323232;">Description=Switch to tty1 on resume
</span><span style="color:#323232;">After=suspend.target
</span><span style="color:#323232;">
</span><span style="color:#323232;">[Service]
</span><span style="color:#323232;">Type=simple
</span><span style="color:#323232;">ExecStart=/usr/local/bin/switch-to-tty1.sh
</span><span style="color:#323232;">
</span><span style="color:#323232;">[Install]
</span><span style="color:#323232;">WantedBy=suspend.target
</span>

‘switch-to-tty1.service’ executes ‘/usr/local/bin/switch-to-tty1.sh’ and send user to tty1


<span style="color:#323232;">#!/bin/bash
</span><span style="color:#323232;"># Switch to tty1
</span><span style="color:#323232;">chvt 1
</span>

.bashrc login from tty1 then kicks user to tty2 and logs out tty1.


<span style="color:#323232;">if [[ "$(tty)" == "/dev/tty1" ]]; then
</span><span style="color:#323232;">    chvt 2
</span><span style="color:#323232;">    logout
</span><span style="color:#323232;">fi
</span>

also tty2 is blocked from keyboard inputs (Alt+Ctrl+F2) so its a somewhat secure lock-screen which on sway lock-screen aren’t great.

Willdrick ,

Got fed up of Pipewire suspending (old receiver takes ~2 sec to work again after spdif stream is cut) that now I auto-run aplay to play a silent .wav on loop

mactan ,

not sure if duct tape or brute force but if I can’t stop a file from getting overwritten like resolv.conf I just make it immutable with chattr

SimplyTadpole ,
@SimplyTadpole@lemmy.dbzer0.com avatar

I’m not technically inclined at all, so the most duct tapey thing I can remember was hacking Gnome to use Nemo as my file browser instead of Gnome’s default file browser once.

prime_number_314159 ,

I ran out of crtcs, but I wanted another monitor. I widened a virtual display, and drew the left portion of it on one monitor, like regular. Then I had a crown job that would copy chunks of it into the frame buffer of a USB to DVI-d adapter. It could do 5 fps redrawing the whole screen, but I chose things to put there where it wouldn’t matter too much. The only painful thing was arranging the windows on that monitor, with the mouse updating very infrequently, and routinely being drawn 2 or more places in the frame buffer.

captain_aggravated ,
@captain_aggravated@sh.itjust.works avatar

I duct taped a Raspberry Pi to the back of a television once. Does that count?

cm0002 ,

Well it was more like a temporary duct tape, but I “installed” a copy of Ubuntu in RAM from the running Ubuntu system so that I could “boot” (pivot_root) into it without restarting it

All because I didn’t want to wait on a ticket for my dedicated server provider to hook in a KVM LOL

(See my meme post I posted to c/linuxmemes a few weeks back for more info)

mycodesucks ,
@mycodesucks@lemmy.world avatar

My Nvidia card won’t properly resume the display after suspend with the default suspend script, but if I correct the script file, every time aptitude updates the nvidia drivers, it restores the bad version of the configuration file. If you set the file immutable with chattr, aptitude throws a fit and goes into a broken state when it can’t overwrite the file on a driver update.

So I keep a good copy of the script file in the directory, and in my pre-suspend script file I overwrite the main suspend script with the good version. Every single time.

rotopenguin ,
@rotopenguin@infosec.pub avatar

I made a systemd script that fires when going to / waking up from sleep - it checks how long the sleep was and if it was just a few seconds, it puts the computer back to sleep.

In hindsight, I think the thing that made it work was bluetooth was somehow responsible for the initial failed suspend. The second shot at sleep happened before bluetooth came back up, so it succeeded.

eager_eagle ,
@eager_eagle@lemmy.world avatar

I keep a small local knowledge base with common fixes for problems I find recurrently (over and over again in some cases).

It has a bit over 1,300 lines of markdown files split by category of problem. It saves me the trouble of finding that exact solution in stack overflow that fixed this exact problem 5 months ago.

jbk ,

sometime ago I had my home directory managed by systemd-homed on Fedora (before 38 even afaik). the SELinux policy wasn’t configured properly for it though, so I had to keep setting it to permissive mode. for some stupid reason I remember running the command to do that on every. single. boot. lol

Wolf314159 ,

Using crontab to execute these kinds of quick fixes that don’t really solve the problem so much as reset the countdown to failure are the real Duck tape Linux hacks.

MicrowavedTea ,

Not exactly mine but I’ve used it. I have a fast but data-limited internet connection and a slower unlimited connection. When I need the faster connection to do something I connect to it through wifi while staying connected to the other through Ethernet. Then use this project to bind a specific app to wifi while everything else keeps using Ethernet. It uses LD_PRELOAD to link its own version of network connect that calls the real method. There’s definitely a better way to do this with iptables but it’s a good enough patch for when needed.

julianh ,

So I use a surface device with the Linux surface kernel, and there was (and probably still is) an issue where the type cover doesn’t properly rebind after being detached and re-attatched. To make matters worse, connecting other USB devices disconnected the type cover. My solution was to make a udev rule that detected if the keyboard is “removed” and then try to rebind it, effectively unplugging it and plugging it back in again in software.

ving_thor ,

I wrote a systemd unit file to force my wireless keyboard to always switch the fn key to normal F-keys.

Archr ,

I think there is a value you can put into a /sys file to fix this. Had the same issue on my k10 keyboard. (the fix was easily findable on their forums)

Ephera ,

I like to use unclutter to hide my mouse pointer after a few seconds without being moved.

Now, the thing is, it doesn’t just visually hide the cursor, it actually removes it, so UI elements triggered by hovering disappear. Sometimes that’s great, other times it’s infurriating, like when reading a tooltip or menu.

I mostly use a touchpad, and so I developed a habit to wiggle my finger while I’m intentionally hovering something, so that there was enough mouse movement for unclutter to not remove my pointer.

Then I found a setting for the jitter threshold of the touchpad. Basically, with the threshold on, it ignores tiny movements, because the hardware reports finger wiggling, even if you hold your finger perfectly still. Which is perfect for me to turn off.

Now when I have my finger on the touchpad, it automatically wiggles and allows me to read hover elements. If I take my finger off, it stops wiggling and removes the cursor.
It’s almost like someone designed an OS with touchpads in mind, rather than them being an afterthought.

I_like_cats ,

My mother uses some software that runs in the browser for her shop. It can print out receipts and scan items. To do these things it has a small “sattelite” application that runs on the system and interacts with the printer and scanner. This software only runs on Windows and Linux doesn’t have drivers for the scanner.

When I switched her over to Linux and found this out in the process I wanted to stop, give up and install windows.

But then I had a stupid idea. I could run the sattelite program in a Windows VM and pass through the USB devices for receipt printer and scanner. The webapp uses requests to localhost:9998 to communicate with the sattelite so I set up a apache server that proxies these requests into the VM. I also prevented the VM from acessing the Interner so Windows doesn’t update and screw everything up.

And it works. It has been in use for a week now and I’ve heard no complaints. I’m just praying to god it doesn’t break

capital ,

At least getting a snapshot of the Windows VM should be simple. And since it doesn’t connect to the internet and doesn’t update, restore should be quick and relatively easy.

averyminya ,

Create a script to send important data records (if you need that for taxes or inventory data etc) as a nightly routine, that way you have a consistent database for any important records.

Then just create a restore point. If it breaks in 2 weeks, then you just relaunch it and know that it’s going to kill itself in 2 weeks. A simple restart to that restore point solves everything.

Sounds 100% functional to me!

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