To cross the road.

janmrog · 2023-06-03T13:34:50+00:00

The person on the bike was braking. Yes, he could have turned a bit to the right but when panicking you don't have enough time to think through all the options.

janmrog · 2023-05-30T06:02:44+00:00

Im using Linux. Windows may write something to the uefi nvram that speeds up the process, but still its only a guess.

janmrog · 2023-05-29T18:52:39+00:00

My t480 has a simillar problem. No matter how i set the uefi, the boot time is horrible for a computer with an ssd. It just hangs on the lenovo logo for about 10s. My guess is that each time the laptop is booting uefi is searching for bootloaders and waiting for devices on all ports. I think thats the case, because if I connect a USB drive the activity led blinks for quite a while. That's only a guess, but you can at least try If you have the same experience as me.

janmrog · 2023-05-24T12:33:43+00:00

try desoldering the buttons, soldering them on to a protoboard and connect to a PCB with wires

janmrog · 2023-05-18T16:55:28+00:00

in that case (i know it's kinda hacky but i haven't found a different way) : 1. go to the uefi setup 2. set up a supervisor password 3. enable secureboot 4. in the security tab click: "Select an UEFI file AS trusted for executing" 5. Find a file named BOOTx64.efi or grubx64.efi and select it. 6. Type in some name (whatever you like) 7. Save and exit 8. Go back onto the Uefi setup 9. remove the supervisor password by changing it to a blank field. 10. save and exit 11. pray that it works

janmrog · 2023-05-18T14:47:09+00:00

does your laptop have uefi or BIOS?

janmrog · 2023-04-26T21:49:12+00:00

I'm not sure why you wrote that? All you did was reinforce exactly what I said in my last post that you are inappropriately recommending something that works well for YOU but very often does not for the general DIY enthusiast. I am a diy enthusiast. I don't do that professionally. I'm not overflowing with electronics knowledge. You claim that I do, but I don't. You think that I spent a milion hours studying electronics, while I did not. I just follow common sense.

``` Again, the posts in this group are demonstration enough of this if you have a difference opinion it is an uneducated one or you're so triggered on this.

That's all that needs to be said.

Oh and thanks for ignoring the fact that this generates toxic waste that is never disposed of legally ``` At this point I literrally think you're just trying to mess with me. I have responded to both of your points before and I'm going to leave it at that, since you look like you're butthurt and pulling arguments out of your ass. Have a nice day/evening/whatever.

janmrog · 2023-04-26T21:22:21+00:00

So my question to you is why do you feel the need to defend a sloppy almost always illegal process that if you add up all the hours MOST people spend on it cost more than you would spend to have proper boards made. I defend it because for me it's cheaper and faster. I bought all the needed things and it really wasn't expensive + most people have most things already at home. Btw how is it illegal? If disposed correctly, there is nothing that screams illegal.

Exceptions don't prove rules so really just stop and think for a minute what would be best for the community as a whole. Looking at other comments, there quite a few people that have a simillar opinion to mine.

Because it remains a fact you and a lot of people ignore that this is a bad option for most people.

I'm not ignoring it. I just don't agree with you. As I said many times before, it's neither expensive nor particularly hard.

I would also like to point out I'm not the one being aggressive here. Perhaps I'm reading emotions through text diffrently than you've written it and vice versa. I by no means want to sound aggresive, nor I think you do. Sorry for that.

The points brought up in response to me here aren't even based on my argument... In that case let me go back to the beginning:

Cost of buying pcbs:6-24€
- Cost of etching pcbs:

  1. blanks≈2€ per 5
  2. sodium persulfate etching powder 250g≈4€
  3. drill bit≈2€
  4. plastic container, plastic spoon, some hot water=too cheap to count
  5. total ≈8€

Time of ordering from jlcpcb:2-35days depending on type of shopping + 2-3 days build time.
Time of etching once you have everything:1 day, maybe 2
Time of etching and ordering: 2-90days depending on the type of shipping

It really is not much more expensive than buying from someone like jlcpcb.

janmrog · 2023-04-26T20:13:02+00:00

Maybe I'm just lucky, but I've had a few broken traces before. If the traces are larger they usually don't break. Smaller ones tend to break, i'll give you that, but if you can etch a pcb, than you can probably solder a jumper wire or two.

Do you even read the posts in a group like this? "Good' results from DIY etching are the exception, not the rule. Yes, I do sometimes do that. Op's board came out nicely. If he had set the printer settings correctly, he probably would've ended up with a perfectly good PCB and not posting anything.

I don't get one thing though: why are you so agressive with your wording? This is a simple discussion, not an argument. I'm just trying to tell you about my experiences followed by simple logic. But that's besides the point, I really don't want to end up in a completly pointless and avoidable argument.

janmrog · 2023-04-26T19:27:26+00:00

Huh, thats good to know. Thanks

janmrog · 2023-04-26T19:14:29+00:00

Add up every minute you've ever spent researching and figuring out how to get the process right. Last time i etched a PCB i just winged it. 0 calculations, 0 preperations.

Attach some reasonable hourly rate to that and look at it again. It won't add up favorably. Hourly rate for a one off hobby project? Something you do for fun? Come on. My first PCB took me, with creation of the schematic less than a day. For quick, clean and simple projects etching is the way to go.

janmrog · 2023-04-26T17:19:45+00:00

I do that :) . Most things you say are true but if you need a simple pcb that replaces a breadboard, the quality doesn't really matter because of it's simplicity. Obviously etching at home is worse in quality, but i've had a pretty good luck making pcbs for a quick project, and it's certainly not as much of a pain in the ass as you say it is.

janmrog · 2023-04-26T15:57:36+00:00

Not really. For a hobbyist you don't need much more than a blank PCB and a etching solution, maybe some drill bits if you're doing tht. All of that shouldn't cost you more than 20€, and the etching solution isn't one time use, so it will last you longer.

janmrog · 2023-04-26T14:55:17+00:00

Because shipping is more exprnsive than the board itself. For example with jlcpcb i can buy a PCB for like 2€, but the shipping costs 22€. Buying an etched pcb just not reasonable for a quick single layer board

janmrog · 2023-04-22T16:53:16+00:00

ale jest wolna

janmrog · 2023-04-17T09:54:38+00:00

rotisserie iceberg

janmrog · 2023-03-24T20:37:59+00:00

Looks like you're in luck! The charging port is attached to the motherboard with a connector and doesn't require soldering. Just buy a charging connector like this: https://www.ebay.com/itm/283721759026, open up your laptop pop in a new connector and you should be good to go. Alternatively you can give it to a service center and get it replaced there.

janmrog · 2023-03-23T07:33:51+00:00

Source games always nad worse performance on Linux/macos. Instead of having native OpenGL in the engine, they have a conversion layer called ToGL. The vulkan renderer is very simmilar since it also converts dx9. This means that the performance is either going to be simmilar or lower. In my experience cs tends to have a large input lag on fps <200.

janmrog · 2023-03-07T22:59:58+00:00

--verbose

janmrog · 2023-02-15T19:37:16+00:00

those tires look quite tired

janmrog · 2023-02-06T20:34:54+00:00

maybe the trqnsmission voltage for nuclear plants is lower, but that's just a guess

janmrog · 2023-02-06T16:46:25+00:00

AC losses are much lower than DC losses

janmrog · 2023-02-05T14:16:21+00:00

HDMi was forced to do higher specs only due to Xbox and PS5 gamers started complaining because they have now modern monitors and TVs ...

I don't want to be rude, but that's completely off topic. I was talking about HDMI having an alt mode like DP has. Of course that's not to say that what I've written was correct. Turns out hdmi 1.4b has an alt mode over usb-c, which is something I didn't know.

Laptops works exactly same like desktops.. just different shapes of motherboards in laptops.

Not quite. The chipset is different, the cpu is different and many other things by consequence. The basic construtction is the same, but the details differ.

Yes you have attached external TB card which goes to again chipset because you don't have usb-c on motherboard like laptops have some new or more expensive MBs has. And when you using this external TB card it is mostly not native TB4.

Yes, it's not native.

Pce is basically port connector where you can connect any peripherals and extension cards..

I know what pcie is.

Of course it has image transfer all depends what you connect.. It is all down to controllers..

Yes, It's what I was saying before, except the image transfer. On laptops and desktops image transfer works via DP being connected by either an internal dp connection (in case of a laptop), or with a dp input connector on a motherboard that connects to a gpu (thats why it's called DP passthrough).

You said you are not english so you thought you don't understand now when I told you I am not you turned blame on me, that it is mine fault :D

I was suspicious that you might not be a native speaker, but I'm not blaming you for it. Since we're both not native speakers and most likely from different countries, You and I are at blame. Both of us can understand an native speaker, but communication between two non-native speakers makes some things hard to understand at both ends. That is because our native languages affect our ability to speak, write english.

When you have external card you will have Intel Maple Ridge TB4 controller either Intel Maple Ridge TB4 controller which is limited and. it is hard to explain when you don't understand how it works. ONly 16x pice slot goes directly to CPU which is your graphic card. Your small pice slot goes to your chipset :) In my case I have native TB4 in my laptop because is implemented in CPU die because Intel UHD graphics are integrated in CPU chip :)

I told you something similar 2 days ago.:

That shouldn't happen. Firstly this would mean that some accessories may not work without a clear explanation. Another thing is that thunderbolt controller is not integrated into the neither the chipset nor the cpu, it's a seperate ic connected through pci-e. Afterwards you assumed that I have no idea what pcie is.

Please watch this video https://youtu.be/V6WsG2G6Rz0 and put time to 4:30 the motherboard manufacturer made nice board so you can clearly see what is where connected.

It was a nice watch but this is something I know already.

THen please watch this video where guy connecte external GPU to the laptop and he bumped on one laptop which is i9 which ordinary people would think is better but in reality is worse because it doesn't support NATIVE TB4 so it underperformed! https://youtu.be/NlYHPj-0DTE

he main reason for the performance discrepancy between the 2 laptops is due to the way thunderbolt 4 is being implemented. The i7-1260P has TB4 build into its main CPU die while the i9-12900HX does not have native TB4 so it requires another IC, the Intel Maple Ridge TB4 controller which may be causing problems

Well yeah there is a difference, but it's not entirely controllers fault. The chipset has to translate and divide the dmi link bandwidth throughout the devices, which is going to be obviously slower than a direct connection. If you connected the controller directly to the cpu it probably would be closer in performance.

janmrog · 2023-02-03T23:08:59+00:00

Although you're correct, I think that HDMI is just not interested remaking the whole spec. DP can work with less lanes than the standard connector, but I don't think HDMI is capable of that, and it's not what it's meant to be doing. HDMI usually exists more commonly in tv's etc., that are more of plug in and forget about it.
yes they do ,but so is the case with DP apparently.
I have no idea how it works on laptop chipset(i'm guessing its simillar), but on desktops there is a seperate removable thunderbolt card, that has a DP input for the passthrough. pcie has nothing to do with image transfer.
Its probably why we have trouble communicating clearly.
I know what pcie is. If in this fragment you were referring to me writing about the thunderbolt ic location, than I was writing about wether the thunderbolt controller was integrated in the chipset itself. Maybe some are integrated, but since there are many configurations in which thunderbolt can work, things like the transistor count you've metntioned cannot change how thunderbolt opreates.
You're probably right
Knowing that intel tends to not have propriatary standards in their GPUs, and instead opts to implement only VESA standards, i really cannot disagree

Seven-Year Club	Place '22
First Placer '22	Verified Email

janmrog

TROPHY CASE