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by ehem
Fri Dec 13, 2019 6:23 am
Forum: Debian
Topic: Modules for 4.19 on RP4?
Replies: 0
Views: 63

Modules for 4.19 on RP4?

Is anyone using the generic 4.19 arm64 kernel on a Raspberry PI 4? Could you list which modules are being loaded to drive the on-board SDHC/MMC hardware?

I'm experimenting with a rather unusual setup on a closely related variant and as a result retrieving that information is a bit tricky...
by ehem
Wed Dec 11, 2019 12:51 am
Forum: General discussion
Topic: New Pi 4B v1.2?
Replies: 172
Views: 11996

Re: New Pi 4B v1.2?

cjan wrote:
Wed Dec 11, 2019 12:40 am
so, after a lot of discuss, does v1.2 exist?
and, whats improve?
To the first, "yes". To the second, presently unknown.
by ehem
Thu Dec 05, 2019 10:41 pm
Forum: General discussion
Topic: New Pi 4B v1.2?
Replies: 172
Views: 11996

Re: New Pi 4B v1.2?

The Raspberry PI 4B-4GB bought at MicroCenter on Sunday appears to be the v1.2 board. Why not just ask the operating system what board you're running. grep -i 'revision' /proc/cpuinfo then decode the revision number (heres a clue: the last digit is the version) cat /sys/firmware/devicetree/base/mod...
by ehem
Thu Dec 05, 2019 6:32 am
Forum: General discussion
Topic: New Pi 4B v1.2?
Replies: 172
Views: 11996

Re: New Pi 4B v1.2?

The last bit of hardware has shown up and now I'm starting towards my project. The Raspberry PI 4B-4GB bought at MicroCenter on Sunday appears to be the v1.2 board. I took pictures, but not being on any of the big photo-sharing sites (nor steal-your-face Book) I don't have a handy place to stash the...
by ehem
Wed Dec 04, 2019 2:46 am
Forum: Debian
Topic: Guide: Installation of *VANILLA* Debian 10.0 or later on Pi 3B/3B+
Replies: 24
Views: 5832

Re: Guide: Installation of *VANILLA* Debian 10.0 or later on Pi 3B/3B+

So I should sue if anything it works at all? :D

I was wondering whether bug reports were desired this early. I imagine you already know about many present problems. Until USB3 support is at least semi-working the main phase of my project will be blocked.
by ehem
Wed Dec 04, 2019 2:42 am
Forum: General discussion
Topic: New Pi 4B v1.2?
Replies: 172
Views: 11996

Re: New Pi 4B v1.2?

One (serial 84349855) is c03111, the other (serial 23C20032) is C03112 This stating that you personally have one in hand? Merely analyzing what the prior poster typed? If you're confirming then we've got a confirmation from a long-term registered user. The previous poster was new here, though they ...
by ehem
Mon Dec 02, 2019 2:02 am
Forum: General discussion
Topic: New Pi 4B v1.2?
Replies: 172
Views: 11996

Re: New Pi 4B v1.2?

The moral of the story? Certainly whatever HDMI does it can radiate EMI that cripples WiFi. Do not trust cheap shitty HDMI cables. This is true. I've got this one long and really thin HDMI cable. I'm actually astonished it manages to handle 1920x1080, but that it does. For the moment it serves unti...
by ehem
Mon Dec 02, 2019 1:40 am
Forum: General discussion
Topic: Raspberry Pi 4 USB 3.0 HUB/extension board?
Replies: 6
Views: 1020

Re: Raspberry Pi 4 USB 3.0 HUB/extension board?

HawaiianPi wrote:
Sat Jul 20, 2019 8:34 am
Not all USB 3.0 hubs work on a Raspberry Pi. Look for hubs that specify Linux compatibility, and hope for the best.
Do USB 3 hubs which aren't Linux compatible exist? I thought such would be similar to USB2 hubs which are standard.
by ehem
Sun Dec 01, 2019 2:45 am
Forum: General discussion
Topic: New Pi 4B v1.2?
Replies: 172
Views: 11996

Re: New Pi 4B v1.2?

I have a vague recollection of remarks indicating that the initial order (and, thus, the expected demand distribution) was something like 1:3:1 across the 1, 2, and 4GB models, respectively. Have you seen any numbers for actual demand? Guessing the 4GB model had massively greater demand than expect...
by ehem
Sun Dec 01, 2019 2:38 am
Forum: Debian
Topic: Guide: Installation of *VANILLA* Debian 10.0 or later on Pi 3B/3B+
Replies: 24
Views: 5832

Re: Guide: Installation of *VANILLA* Debian 10.0 or later on Pi 3B/3B+

Work is under way to extend this to the Raspberry Pi 4. There is a Pi Four Task Force which is one of the people working on this. As of today it wasn't even building for me, manages to create Dsdt.iiii, but fails to compile that. I distinctly like this approach since even though UEFI is pretty awful...
by ehem
Mon Nov 25, 2019 6:24 am
Forum: Troubleshooting
Topic: STICKY: If you have a Raspberry Pi 4 and are getting bad speeds transferring data to/from USB3.0 SSDs, read this
Replies: 62
Views: 33335

Re: STICKY: If you have a Raspberry Pi 4 and are getting bad speeds transferring data to/from USB3.0 SSDs, read this

Has anyone tested devices with the JMicron JMS583 chip? When looking at mSATA and NVMe adapters I kept finding lots of them with this chip in them, but given JMicron's reputation.
by ehem
Mon Nov 25, 2019 6:17 am
Forum: General discussion
Topic: New Pi 4B v1.2?
Replies: 172
Views: 11996

Re: New Pi 4B v1.2?

fully powering down the Ethernet interface due to the potential presence of PoE. Interesting, I have noticed when I shutdown, after the uSD has finished being written the Ethernet Leds are still flickering. Could 1.2 have something to do with Ethernet booting and wake on Ethernet? This is the thing...
by ehem
Mon Nov 25, 2019 5:32 am
Forum: General discussion
Topic: Raspberry Pi 4 usb boot?
Replies: 445
Views: 111216

Re: Raspberry Pi 4 usb boot?

I certainly hope you mean filesystem UUIDs. In order to have the same PARTUUIDs you would either have to copy a GPT or deliberately copy the UUID. The former is sort of sane to do, except I would then imagine you would do a major resizing at which point you really should generate a new UUID while y...
by ehem
Mon Nov 25, 2019 3:18 am
Forum: For sale
Topic: Battery backup power
Replies: 1
Views: 209

Re: Battery backup power

Interesting add on. I note the extension header looks a bit short... Didn't include a RTC while you were at it?
by ehem
Mon Nov 25, 2019 3:15 am
Forum: General discussion
Topic: Raspberry Pi 4 usb boot?
Replies: 445
Views: 111216

Re: Raspberry Pi 4 usb boot?

Please don't take this as argumentative. It is just a question. What would be the downside of using a microSD card for the initial boot stages? Other than that with a purely SSD or eeprom > SSD boot, the microSD slot could possibly be used as removable storage. Fewer bits of hardware to test if som...
by ehem
Sun Nov 24, 2019 1:52 am
Forum: General discussion
Topic: New Pi 4B v1.2?
Replies: 172
Views: 11996

Re: New Pi 4B v1.2?

This new Rev 1.2 string is reported by /proc/cpuinfo and by dmesg, so it has some implications for the software. If the Rev 1.2 changes would be fully transparent for the software, then it would hardly make any sense to report the revision in /proc/cpuinfo. Small component changes on the board migh...
by ehem
Sun Nov 24, 2019 1:05 am
Forum: General discussion
Topic: Raspberry Pi 4 usb boot?
Replies: 445
Views: 111216

Re: Raspberry Pi 4 usb boot?

I am not advocating adding exFAT as a boot option. For the heck of it, I think the Raspberry PI should really support booting from UDF filesystems. UDF is an open standard unlike FAT. Every OS other than FreeBSD has support for reading and writing UDF, and UDF has a number of features FAT lacks (pr...
by ehem
Sun Nov 24, 2019 12:43 am
Forum: General discussion
Topic: Fastest Micro SD card for Pi 4? Does it support XC U3?
Replies: 38
Views: 10049

Re: Fastest Micro SD card for Pi 4? Does it support XC U3?

One concern here, speed isn't everything. If you get increased speed with decreased reliability... There is a trend with MicroSD cards of having distinctly large values for [/sys/block/mmcblk0/queue/]discard_granularity. Larger block sizes makes faster reads and writes easier, but potentially has a ...
by ehem
Fri Nov 22, 2019 3:24 am
Forum: General discussion
Topic: New Pi 4B v1.2?
Replies: 172
Views: 11996

Re: New Pi 4B v1.2?

Proven??? The claim on Reddit is BS, and thus the first post here is also BS. The 2nd and 4th posts (mine btw) still stand true. No. The only text in the first post is "Somebody on Reddit said they've got a Pi 4B 4GB v1.2 with revision code c03112?". That much is true. There is such a message on Re...
by ehem
Fri Nov 22, 2019 2:54 am
Forum: General discussion
Topic: New Pi 4B v1.2?
Replies: 172
Views: 11996

Re: New Pi 4B v1.2?

10 days and still not a single hint of proof of the claim in the first post. FUD. The claim in the first post has already been proven. Someone with an account on Reddit has claimed they have a RP4 v1.2 and a revision code c03112. Now there is some doubt as to whether the user on Reddit actually had...
by ehem
Fri Nov 22, 2019 2:35 am
Forum: Advanced users
Topic: Increasing MTU on Pi 4
Replies: 8
Views: 1319

Re: Increasing MTU on Pi 4

Well, does Raspian ship with the "ifupdown" package? Have you tried `ifdown eth0`, then in /etc/network/interfaces, under "iface eth0" adding "mtu 9000" and then doing `ifup eth0`? If your network uses DHCP, then DHCP option 26 can be used to specify the frame size of the network (I can confirm this...
by ehem
Fri Nov 22, 2019 2:10 am
Forum: General discussion
Topic: New Pi 4B v1.2?
Replies: 172
Views: 11996

Re: New Pi 4B v1.2?

What makes you think an 8gb Pi4b will ever see the light of day and what on earth do you need that much ram on a Pi for, it's not a professional video editing software suite. While it was very much a partial quote and out of context, are you of the opinion that 640K should be enough for everyone? T...
by ehem
Thu Nov 21, 2019 7:19 am
Forum: General discussion
Topic: New Pi 4B v1.2?
Replies: 172
Views: 11996

Re: New Pi 4B v1.2?

The USB-C fix might not even warrant a new revision number, because it has no effect on software, firmware or certifications. Small discrete components on PCBs often change over time. Ever wonder why there are empty component spaces on most PCBs? This revision 1.2 thing (if true) is probably a red ...
by ehem
Thu Nov 21, 2019 6:48 am
Forum: HATs and other add-ons
Topic: TV Hat ATSC
Replies: 18
Views: 8517

Re: TV Hat ATSC

If there is interest, please contact me. I believer there would be explosive interest in a Radio HAT with a wide range of flexibility. There isn't really a handy way to contact you here. Until some other ATSC Raspberry PI HAT shows up, I imagine everyone here is interested in this. I cannot help su...
by ehem
Wed Oct 23, 2019 11:12 pm
Forum: Off topic discussion
Topic: Silly question, but is it fine to use PI4 PSU to charge phone?
Replies: 10
Views: 3408

Re: Silly question, but is it fine to use PI4 PSU to charge phone?

What was wrong with using a 9v charger for a 9v device or a 20v charger for a 20v device? Why must the charger be 'smart' and supply multiple voltages at all? What happens when some complete nincompoop plugs the 20V charger into the device which requires 3V? Devices are supposed to include some lev...

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