game design – What GameEngine to use for low-end laptops?

game design – What GameEngine to use for low-end laptops? – Game Development Stack Exchange

macbook pro – Can I trigger a HomeKit scene when my laptop’s camera is turned on or off?

Like a lot of people nowadays, I’m set up in a home office and I’m often on video calls on my MacBook Pro. My partner sometimes wants to come into my office, but doesn’t want to interrupt a video call. We’ve got a Hue bulb in the landing outside my office, so I was wondering whether I could use that to show whether I’m on a call. Can I trigger a HomeKit scene based on whether my laptop’s camera is turned on or off?

Do immigration officers have the authority to inspect your electronic devices (smartphones, tablets, laptops)?

I’ve heard that ever since the 9/11 attacks, immigration officers in many countries (in particular Anglophone nations) have being granted legal authority to go through a passengers electronic devices and find any illegal content or evidence that a passenger is planning on working unlawfully while under a tourist visa.

I’m travelling to the U.S. and I’m a bit worried about this. Though I have no illegal material on my computer and I’m not planning anything nefarious while on holiday, I feel uneasy about an officer having a window into my personal life.

From what I’ve read though is that even with legal authority, immigration officers rarely conduct these searches.

Do laptops have a POST beeper?

It depends on the laptop whether it has an internal device to Beep on error cod.

If it does, it will show under Hidden Devices in Device Manager. It can be disabled there as well.

My laptops (two) do not have internal devices and so use the built-in speakers. No room inside for any extra things.

Other laptops may have internal speakers which can be disabled.

The article below illustrates how to find the speakers and disable them if you have them.

Laptop internal speaker

If you’re running Microsoft Windows, you can disable the internal speaker or PC speaker by following the steps below.

Open the Device Manager

In Device Manager, click View and select Show hidden devices. Once
done, Non plug and play Drivers becomes visible in Device Manager.
Expand Non plug and play Drivers by clicking the plus and double-click
Beep.

In the Beep properties window, click the Driver tab. On the Driver
tab, if you want to temporarily disable this device, click the Stop
button. If you want to permanently disable this device, under the
Startup type, select Disabled.

Any laptop I have used has regular speakers and I think these are the only ones you can use to play any kind of music.

apt – Multiple Repos for Linux laptops

I’m working on a project to better manage updates on our Linux (Ubuntu) laptops. Currently we already have a working solution for desktops.

For our desktops, they’re configured to point to a local repository on our network for updates and new packages. This is fine since they never leave our internal network.

However, with our laptops we’re exploring the idea of configuring both our local repo and the standard Ubuntu repos. The idea being that users would be able to install software and updates from our local repo while onsite, and use the standard Ubuntu (internet) repos while at home.

In practice, I’ve tested this by adding 2 sources to the /etc/apt/sources.list.d/ directory: 00-local-repo.list and 50-ubuntu-default.list
Since both repos would contain the same packages (and versions of those packages), apt should prefer the local repo if I understand correctly (assuming apt searches the sources directory in alphanumeric order).

The problem is, when the device has no connection to our network, it doesn’t fallback to using the internet repos. It just throws up an error:

$ sudo apt install vim
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libfprint-2-tod1 libllvm10
Use 'sudo apt autoremove' to remove them.
Suggested packages:
  ctags vim-doc vim-scripts
The following NEW packages will be installed
  vim
0 to upgrade, 1 to newly install, 0 to remove and 0 not to upgrade.
Need to get 1,238 kB of archives.
After this operation, 3,111 kB of additional disk space will be used.
Get:1 http://local-repo.example.com/ubuntu focal/main amd64 vim amd64 2:8.1.2269-1ubuntu5 (1,238 kB)
Err:1 http://local-repo.example.com/ubuntu focal/main amd64 vim amd64 2:8.1.2269-1ubuntu5
  Hash Sum mismatch
  Hashes of expected file:
   - SHA256:1e38f267bf4c06e424b166e8d666ffd6ce25c657012892d099651bee18a2c834
   - SHA1:796c962d044f99a81b187211e6ce9a0a44b8d5d1 (weak)
   - MD5Sum:198ccbb07a9fc8ebe67a213eab6a3e96 (weak)
   - Filesize:1237624 (weak)
  Hashes of received file:
   - SHA256:970310343d0d5b0f40363e17367cbd8a3dbeb809149b31850bc790f1df307b13
   - SHA1:38aca684355969d0e9d826831459568296560757 (weak)
   - MD5Sum:63c787e1b487e72a7aee2a4ac9c86f9e (weak)
   - Filesize:1032 (weak)
  Last modification reported: Fri, 21 May 2021 12:43:28 +0000
Fetched 1,032 B in 0s (8,474 B/s)
E: Failed to fetch http://local-repo.example.com/ubuntu/pool/main/v/vim/vim_8.1.2269-1ubuntu5_amd64.deb  Hash Sum mismatch
   Hashes of expected file:
    - SHA256:1e38f267bf4c06e424b166e8d666ffd6ce25c657012892d099651bee18a2c834
    - SHA1:796c962d044f99a81b187211e6ce9a0a44b8d5d1 (weak)
    - MD5Sum:198ccbb07a9fc8ebe67a213eab6a3e96 (weak)
    - Filesize:1237624 (weak)
   Hashes of received file:
    - SHA256:970310343d0d5b0f40363e17367cbd8a3dbeb809149b31850bc790f1df307b13
    - SHA1:38aca684355969d0e9d826831459568296560757 (weak)
    - MD5Sum:63c787e1b487e72a7aee2a4ac9c86f9e (weak)
    - Filesize:1032 (weak)
   Last modification reported: Fri, 21 May 2021 12:43:28 +0000
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

My question is, is it possible to configure both repos and have apt install packages from each depending on which is currently available?

website design – Why is 1366×768 considered by some to be the standard widescreen for modern laptops?

This answer might surprise you, but the reason why 1366×768 is the most common laptop resolution is because a dominant notebook LCD-panel manufacturer called AU Optronics (AUO) makes vast majority of their panels in 1366×768, regardless of the actual size. Many of their 11’6″, 12.5″, 13.3″, 14″, 15.6″ panels only come in 1366×768.

These panels can be found in sub $500-$600 laptops, which accounts for majority of laptop sale. Hence 1366×768 being the most common screen resolution. (yes, even most of 11″ macbook air panels are supplied by AUO)

Sources:

Other than high-resolution and high-priced panels, lower-to-mid tier panels are dominated by AUO.

http://www.tftcentral.co.uk/articles/laptop_panel_parts.htm

This is AUO notebook panel line. note the prevalence of 1366×768

http://auo.com/?sn=149&lang=en-US&c=34

AUO is the third largest lcd panel makers after samsung and LG, but the latter two are absent from inexpensive laptop display market, as seen by the first link.

windows 10 – How can I tell if my laptop’s DisplayPort will support dual monitors?

I have a single display port on my HP laptop. Currently, I have a DisplayPort -> HDMI adaptor plugged into it that works perfectly and gives me fantastic 3840 x 2160 resolution on my 4k monitor.

However, I have been having a devil of a time getting a second external monitor to work. The best I can do is USB -> HDMI or VGA -> HDMI, but this results in super poor quality, fuzzy 1920×1080 resoluiton on the second 4k monitor. (And with the VGA adaptor, the second monitor frequently blacks out for a few seconds.)

There are DisplayPort to Dual HDMI splitters, like this one, but they all come with warnings like:

This will work as long as the DisplayPort on your PC will support MST. Please check the specification of your PC (due to the customization) to be sure before purchasing this item.

Or this one, which warns:

IMPORTANT NOTES – 1) DisplayPort 1.2 GPU/Graphics card required

So, I have been trying to figure out if my laptop will be compatible with these devices.
In Device Manage > Display Adaptors I have:

enter image description here

Fresco Logic is the USB -> HDMI adaptor that is giving poor resolution on the second external monitor. And I don’t know enough about hardware to know which of the other two is the display port. I have googled both of them, but I can’t make any sense of what I am reading about them.

What should I be looking for?

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