Raspberry Pi Forums

trejan

I don't have a Pi 4 to compare to but the is a resistor on the top right quadrant of the second picture here sitting at 45 degrees. Is that correct? Looks like something has made a long scrape mark up the board ending at that resistor. Yeah. The 0 ohm resistor next to the SD socket looks damaged as...

trejan

If you left it set to the default pi:raspberry password and port forwarded SSH to allow external access then it is possible that you were infected. It is more likely that it is just a scammer though as this was last year and nobody has followed up about it. Your ISP does not care about you, your com...

trejan

Yikes! :shock: What did you solder that with, a plasma cutter? :? I'm going to guess a really big chisel tip soldering iron with very poor temperature control. Not sure what solder was used either as it looks very brown & crusty. The 471 on the larger component means 47x10^1 so 470 Ohm. The smaller...

trejan

Sounds like you've damaged the SD card. If the controller inside the SD card detects corruption of its own internal metadata then they go permanently read only to limit the damage and allow you to recover data. You don't notice this during operation as the OS will be caching changes in RAM but a res...

trejan

We have the same H264 decoder in the Pi 4 SoC as before. It can't decode 3840x2160. You need to encode your video file using H265 if you need that resolution.

trejan

W. H. Heydt wrote: ↑
Sun Nov 24, 2019 4:29 pm
On the Pi4B (unlike previous B-series Pis), the LAN chip isn't involved with the Ethernet jack at all.

Uh what? Did you mean USB?

trejan

I connected the Pi to the LAN and then used Fing to determine the IP. The Pi was listed as "192.168.0.143" but going to that IP in a browser gives me a 404. Does the fact that the LAN port works and the Pi got assigned a IP mean it did "boot" ? You've found something else on your network. The stock...

trejan

Can you try a different USB serial adapter or cable? You've swapped out everything else now so there isn't much else it could be. I don't expect it to be a bug in the kernel as the FTDI driver is widely used and should be stable.

trejan

Thanks. I was going to try using the patch and shutdown script , but unsure how to map the buttons, which I guess use the GPIO. They're not connected to the GPIOs. The game buttons are connected to an internal microcontroller that emulates an Xbox 360 gamepad. It is connected to the Pi via the USB ...

trejan

creativiii wrote: ↑
Sat Nov 23, 2019 7:37 pm
I'm supposing this actually means 0x00000 which translates to no undervolting?

No throttling due to temperature or under voltage has occurred. 0x0 = good

trejan

FinnC wrote: ↑
Sat Nov 23, 2019 5:05 pm
Can it emulate the original Xbox or PlayStation2?

No. The emulators for both only work on x86/x64 PCs. RetroPie doesn't support Xbox and PS2 is only for PCs.

trejan

No chance of running the Xenia emulator on a Pi 4. Pi CPU is too slow to emulate the 360 CPU and you have the additional penalty of needing to run it under WINE. The Pi GPU doesn't have the features needed either.

trejan

AFAIK this is not going to change. The Pi 4 uses the 3D hardware for rotation as the VC transpose block doesn't work on anything wider than 1920. It is still possible to flip 180 degrees but rotation has to be done by the 3D hardware. Read https://github.com/RetroPie/EmulationStation/pull/348 for ho...

trejan

How high is high frequency? Time applied to a repetitive action ( Frequency) BoyOh I know what frequency means. I was asking jleonqui as they said their setup worked for low frequencies but didn't for high frequencies. If they're trying to sample a 1MHz signal then the MCP3008 which has a maximum s...

trejan

Wonder if the shortages have anything to do with this? FWIW there was a recent interview with Eben Upton and he said nothing planned at present for the Pi Zero. Any upcoming revisions to Raspberry Pi Zero series? Nothing planned at present. It’s hard to fit the later chipsets (BCM2836, 2837) into t...

trejan

On some desk hidden in the depths of Pi Towers is a scrap of paper with "1.2" written on it. Jamesh has seen it, but hasn't been told its relevance (need to know, and all that), so he's decided upon "No need to No" Is that piece of paper in the bottom of a locked filing cabinet stuck in a disused l...

trejan

How high is high frequency?

trejan

Missing glyphs in your font. Try installing ttf-mscorefonts-installer or fonts-liberation.

trejan

andrum99 wrote: ↑
Fri Nov 22, 2019 4:08 pm
I'm guessing you have some sort of dongle that gets hot plugged into the USB 3.0 ports, that you've elected to glue a heat sink on the back of them

Looks like it is one of those mini but toasty hot USB drives.

trejan

Niklo wrote: ↑
Fri Nov 22, 2019 3:36 pm
I have no Raspberry Pi 4.

Oops. Sorry. I thought you had a Pi 4 for some reason. Ignore my previous post then.

trejan

I added the line dtoverlay=sdtweak,poll_once to /boot/config.txt and the kworker processes are not consuming CPU power any more. So the problem is solved now. Super 8-) According to https://github.com/raspberrypi/linux/issues/3286 the sdtweak poll_once overlay doesn't work on a Pi 4 and doesn't fix...

trejan

You need to update it manually using pip or pip3. The Raspbian packaged version is still 3.3 which is why continually running apt update/upgrade does nothing.

trejan

fruitoftheloom wrote: ↑
Fri Nov 22, 2019 1:25 am
How many other SBC's get that level of support ??

You're lucky if the other Fruity Pi SBC companies even acknowledge there is a problem.

trejan

I was wanting to claim the standards for gigabit ethernet required all gigabit computer NICs to support jumbo frames, yet a quick search suggests this may not be the case. I'm wondering if perhaps the hardware of gigabit ethernet NICs is required to support jumbo frames, but many drivers do not... ...

trejan

akrantz01 wrote: ↑
Fri Nov 22, 2019 12:30 am
Has there been any progress on this? I am having the same issue when trying to set up BATMAN-adv.

No change. The bcmgenet driver in the latest kernel doesn't have any support for setting the MTU.

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