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I don't think there's any error to fix. It's a feature - casting light from the video onto the UI, using JS, surely takes that amount of CPU. The question of w

I don't think there's any error to fix. It's a feature - casting light from the video onto the UI, using JS, surely takes that amount of CPU. The question of why it is on by default stands - because it's little bit of eye candy, vs people's laptop batteries, CPU that could have been used to get other stuff done faster - so also their time, device thermals etc... I don't think it's just unnecessarily salty to point out how the choice to turn this on by default should have been more nuanced and thought through.

tempestn 4y ago
How much can websites determine about the power of the device they're running on? Obviously it'd be a security issue for them to know too much, but it would be nice to be able to progressively enhance the experience for more powerful devices that can handle it, beyond just mobile vs PC. Even just knowing whether a device was running off battery power could be useful.
- simlevesque 4y ago
  Here's what's available, requires permissions: - BatteryManager.charging - BatteryManager.chargingTime - BatteryManager.dischargingTime - BatteryManager.level https://developer.mozilla.org/en-US/docs/Web/API/BatteryManager https://developer.mozilla.org/en-US/docs/Web/API/BatteryMana... https://caniuse.com/?search=BatteryManager https://caniuse.com/?search=BatteryManager
  - rileyphone 4y ago
    Isn't available in Firefox though...
- JohnFen 4y ago
  I don't think you really want websites to make this determination anyway. There are a million reasons why a user might want a website to use fewer resources than their machine could support. It should just be a setting the user can select. No probing of the machine necessary.
  - tempestn 4y ago
    What should be a setting? This specific youtube ambience thing? That is, but it shows the issue - you need to pick a default, and most people won't know they can change it. Having some idea of the capabilities of the device you're running on could allow you to choose sensible defaults. But if you mean there should be a setting in the browser that websites could check, I agree that could be better.
    - JohnFen 4y ago
      Sensible defaults go a long way, yes! Although in the case of this YouTube thing, I think the sensible default is to have it disabled regardless of the capabilities of the machine.
lobocinza 4y ago
IMO the implementation sucks and the feature is questionable. Recently I set the browser to dark mode, which tells YT to also use dark mode, and if I haven't read here I wouldn't know that this is a toggleable feature. It's sad when we can't tell a feature and a bug apart.
- Consultant32452 4y ago
  Not being able to distinguish between a feature and a bug is a feature, not a bug.
  - lobocinza 4y ago
    It's an UI issue.

tempestn 4y ago

How much can websites determine about the power of the device they're running on? Obviously it'd be a security issue for them to know too much, but it would be nice to be able to progressively enhance the experience for more powerful devices that can handle it, beyond just mobile vs PC. Even just knowing whether a device was running off battery power could be useful.

simlevesque 4y ago
Here's what's available, requires permissions: - BatteryManager.charging - BatteryManager.chargingTime - BatteryManager.dischargingTime - BatteryManager.level https://developer.mozilla.org/en-US/docs/Web/API/BatteryManager https://developer.mozilla.org/en-US/docs/Web/API/BatteryMana... https://caniuse.com/?search=BatteryManager https://caniuse.com/?search=BatteryManager
- rileyphone 4y ago
  Isn't available in Firefox though...
JohnFen 4y ago
I don't think you really want websites to make this determination anyway. There are a million reasons why a user might want a website to use fewer resources than their machine could support. It should just be a setting the user can select. No probing of the machine necessary.
- tempestn 4y ago
  What should be a setting? This specific youtube ambience thing? That is, but it shows the issue - you need to pick a default, and most people won't know they can change it. Having some idea of the capabilities of the device you're running on could allow you to choose sensible defaults. But if you mean there should be a setting in the browser that websites could check, I agree that could be better.
  - JohnFen 4y ago
    Sensible defaults go a long way, yes! Although in the case of this YouTube thing, I think the sensible default is to have it disabled regardless of the capabilities of the machine.

lobocinza 4y ago

IMO the implementation sucks and the feature is questionable. Recently I set the browser to dark mode, which tells YT to also use dark mode, and if I haven't read here I wouldn't know that this is a toggleable feature. It's sad when we can't tell a feature and a bug apart.

Consultant32452 4y ago
Not being able to distinguish between a feature and a bug is a feature, not a bug.
- lobocinza 4y ago
  It's an UI issue.