I once met a person that never drank water, only soft drinks. It’s not the unhealthiness of this that disturbed me, but the fact they did it without the requisite paperwork.

Unlike those disorganised people I have a formal waiver. I primarily drink steam and crushed glaciers.

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Joined 2 years ago
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Cake day: June 14th, 2023

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  • Bleepingcomputer’s title and article are very misleading, the presentation did NOT reveal a backdoor into an ESP32. It looks like Bleepingcomputer completely misunderstood what was presented (EDIT: and tarlogic isn’t helping with the first sentence on their site).

    Instead the presentation was about using an ESP32 as a tool to attack other devices. Additionally they discovered some undocumented commands that you can send from the ESP32 processor to the ESP32 radio peripheral that let you take control of it and potentially send some extra forms of traffic that could be useful. They did NOT present anything about the ESP32 bluetooth radio being externally attackable.

    Another perspective that might help: imagine you have a cheap bluetooth chipset that is open source and well documented. That would give you more than what the presentation just found. Would Bleepingcomputer then be reporting it’s a backdoor threatening millions of devices?




  • WaterWaiver@aussie.zoneto3D Printing@lemmy.mlWeird PrusaSlicer error
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    5 months ago

    All of the the surface normals are backwards. This means your shoe is inside-out; instead of being a solid shoe in a vacuum it’s a shoe-shaped-hole inside a solid universe.

    By default blender renders all polys as double-sided so you mostly don’t notice (other than some lighting oddities near corners). Turn on backface culling if you want to check if your normals are the right way around or not.

    I often end up with some of my polys backwards because of the way I extrude and join parts of my models. I distinctly remember a bug in Gmax (old free version of 3DSmax) where the mirror tool would create polygons with some special, broken property where their normals would be correct in the editor, but completely wrong when exported :( much time and hassle was lost to that.








  • 10 sec

    Filthy casual.

    My family has a Chiq U58G7P. Warm boots take about 30 sec and cold boots a few minutes.

    Don’t try and press any buttons on the remote during this time or for a minute or two afterwards. They might work, 15 seconds later, or they might get ignored. Sometimes your button press inputs get re-ordered too.

    Factory resets do work, but then all it can do is broadcast TV. If you let it update and install streaming apps then you will be back to the same problems.

    I suspect that it might be running out of RAM and thrashing some poor innocent MMC as swap, but I can’t find a USB ADB port to properly find out (maybe it has one internally?).








  • I am not so sure that it will end up faster or better.

    **In theory: **A CPU scheduler should give programs as much CPU time as they want until you start nearing CPU resource saturation. Discord doesn’t need very large amounts of CPU (admittedly it’s a lot more than it should for a text chap app, but it’s still not diabolically bad). It will only start getting starved when you are highly utilising all cores. That can happen on my 2-core laptop, but I don’t have any games on my 6 core desktop that will eat everything. Nonetheless on my laptop I’d probably prefer my games take the resources (not Discord) and I’d happily suffer any reasonable drop in responsiveness of Discord as a result.

    I don’t think that a new process (a new dedicated browser-client) instead of a new thread (tab in existing browser) is intrinsically faster or better. CPU schedulers are varied and complex, I wouldn’t be surprised if any differences in performance measurements would end up down in the noise. If anything the extra memory usage might cause more IO contention and memory starvation, making everything slower rather than faster. But this is all conjecture, so don’t give it much credit.

    Basically, it’s faster to focus on painting a single canvas than it is to painting 3 at the same time.

    I don’t think that’s much of a problem in practice, at least for Firefox: one tab can crash and stop rendering completely (or lock up 100% of 1 CPU core) but the others will keep going in other threads. For the most part they shouldn’t be able to affect each other’s performance.

    In practice: What’s the actual metric that you think will be better or worse? I assume responsiveness to typing and clicks in the discord UI?

    I’ve never seen discord lag or stutter from causes other than IO limitations (startup speed, network traffic, heavy IO on my machine) or silly design (having to refresh the page after leaving it open all day, I suspect it’s intentionally auto-disabling but I’m not sure). That’s not something that running a separate discord client in a separate dedicated/embedded browser will fix.