hardware – Graphics glitch – checkered pattern in Chrome

I’ve had this MacBook Pro (16-inch, 2019) for a while now, but today it glitched out with huge green fields in all apps.

After a reboot I see this checkered black/green glitch pattern in Google Chrome on some sites, in some “sizes”. Basically if I resize the browser window the glitch goes away, but if I resize it too much it comes back.

Happens both on the internal and on external display.

I am hoping this is a software glitch, but I am afraid it’s my graphics card. Would be very grateful if someone knows the answer.

Here’s the stackoverflow logo with the glitch:

StackOverflow logo glitched

hardware – MacBook goes to sleep when I keep a bluetooth speaker on top of it

This is kind of a weird question. Since the last year, I have observed multiple times that when I keep my bluetooth speaker on top of my mac, near the trackpad, it suddenly turns off and goes to sleep.

This happens quite frequently but not always.

I am using MacBook Pro 2012 mid and my bluetooth speaker is beetel s2. Also I connect my speaker to mac with aux cable and not bluetooth (sound flickers in case of bluetooth connection).

alsa – No-Sound Problem,reinstalled and not hardware, need help

I was using Ubuntu 20.10 on an asus x555 laptop, amd64 and amd graphics, Conexant onboard sound
All sound quit. Working one day, not the next. I MAY have updated, cant remember.
Before its suggested, my speakers are all on, and plugged in and volumes cranked up.Double checked. I’m not a newbie but not a programmer, using Linux for 15 years.
In clementine (or several other apps) they believe they are playing sound and have pretty equalizers showing it. going to PAV it has the meter that also shows it believes it’s playing sound. alsa-mixer levels are all good, and unmuted, and it correctly detects my devices (including the external when plugged in) and i have tried all of them with no success. On the connected hdmi monitor with speakers, the laptop build-in speakers, the laptop headphone and also an external usb sound card i tried all have no sound.
I purged and reinstalled alsa-base, and all alsa parts, gstreamer parts and linux-sound-base. still no sound. dpkg reconfigured each one, still no sound. also the alsa-base reload. (side note had to dpkg-reconfigure gdm3 after that since i think i broke it, it wouldnt restart)
if I boot to kubuntu live usbstick, it works well, playing sound happily, as expected, all with the same files I was trying from my HD.
I upgraded to ubuntu 21.04 hoping for a reinstall of key sound parts but alas, still no sound.
I have been on GDM3 and I just installed xfce, and it works wonderfully, but does the same thing, indicates sound is playing on the meters, but no sound.
Kubunto live works and I’d just install it but cant risk loosing the HD on the install.

Any suggestions for some base level sound handling I can troubleshoot or replace to make this usable?? Thanks.

if the hardware wallet company ledger goes out of business, what will happen to my crypto asset / private keys in ledger?

if the hardware wallet company ledger goes out of business, what will happen to my crypto asset / private keys in ledger? I heard that the hardware wallet ledger is not open-source, so will the company get access to my private key? Will I be able to transfer my crypto elsewhere?

energy consumption – Hardware to use part time with 300KW free solar power

We have a large solar array and when our equipment is not running we have to curtail the power to prevent tripping the next town.

So for about 45-50 hrs per week we have about 300KW of available and free power.

New hardware is too expensive even with free power due to the limited hours available each week. Running 24/7 anyways isn’t much cheaper because bought power costs more on a solar plan.

So if you had this much free power what cheap inefficient hardware would you use?

I’m wondering if I can find a pallet of used servers and setup a farm that just runs when we have extra power.

mining hardware – No OpenCL devices found in your system. Closing lolMiner

New to mining. I am trying to figure out how to use lolMiner on Ubuntu 20.04. Here are the specs of my GPU:

       description: VGA compatible controller
       product: Ellesmere (Radeon RX 470/480/570/570X/580/580X/590)
       vendor: Advanced Micro Devices, Inc. (AMD/ATI)
       physical id: 0
       bus info: pci@0000:06:00.0
       version: ef
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=amdgpu latency=0
       resources: irq:62 memory:e0000000-efffffff memory:f0000000-f01fffff ioport:e000(size=256) memory:fcf00000-fcf3ffff memory:c0000-dffff

When I try to enter into lolMiner, I get this error:

|  _       _ __  __ _                   _   ____  ____    |
| | | ___ | |  /  (_)_ __   ___ _ __  / | |___ | ___|   |
| | |/ _ | | |/| | | '_  / _  '__| | |   __) |___    |
| | | (_) | | |  | | | | | |  __/ |    | |_ / __/ ___) |  |
| |_|___/|_|_|  |_|_|_| |_|___|_|    |_(_)_____|____/   |
|                                                         |
|              This software is for mining                |
|              Ethash, Etchash                            |
|              Equihash 144/5, 192/7, 210/9               |
|              BeamHash I, II, III                        |
|              ZelHash     (EquihashR 125/4/0)            |
|              Cuck(ar)oo 29                              |
|              Cuckaroo   30 CTX                          |
|              Cuckatoo   31/32                           |
|                                                         |
|                                                         |
|             Made by Lolliedieb, April 2021              |

Setup Miner... 
No OpenCL devices found in your system. Closing lolMiner. 

Does using lolMiner or any miner for that matter not allow you to use any Radeon RX GPU’s?

I tried finding resources to help me but I am diving into rabbit holes with not getting anywhere with figuring it out.

drivers – Hardware Works Well on Older Kernel – General Question

I am running 20.04 with the kernel on a 2017 iMac. I have stuck with this kernel because the two Thunderbolt displays that I have attached are instantly recognized and function perfectly. This only happens with this kernel – I have tested many others extensively.

I am starting to learn more about Linux and I anxious to upgrade my kernel to a more current one, but the Thunderbolt monitors flicker badly and never work as well as on kernel

Generally speaking, given that I know that these displays are at least capable of working perfectly on a certain kernel, should it be possible to learn what works well on that kernel and translate it to a newer one?

How would I go about doing something like this? Ideally, I would like to learn what makes my hardware work well under this older kernel and translate those fixes to a more current kernel.

Any help would be most appreciated.

Thank you

licensing – Do I have to pay for Linux and Browser on commercial hardware product?

licensing – Do I have to pay for Linux and Browser on commercial hardware product? – Software Engineering Stack Exchange

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