Raspberry Pi Forums

andrum99

Eh, mybe you have misunderstanding what I mean . I mean that I want to install the OS like what we do to a server or laptop -- insert a DVD, booting, and install. So we can have more options. IF the DVD has the correct formatting and content to be a Pi-bootable image, and WHEN to Pi4B can be upgrad...

andrum99

That thread is about issues with a test version of the VL805 firmware that was posted by a Raspberry Pi engineer. Unless you specifically ran the installer linked to from another forum post, you won't have that version of the firmware. I suggest you post an issue on the Raspberry Pi github repositor...

andrum99

Raspberry Pi 2B will also remain in production until at least January 2026, although it is now using the newer BCM2837B0 SoC, rather than the 2836 it originally had.

Link: https://www.raspberrypi.org/products/ra ... 2-model-b/

andrum99

The actual problem I face is I have build a cluster with several RPI 3B+ running SLES 12.4, and I bought two 4B last week. I wanna install the same OS on the new models, and add them to the cluster. So, maybe I should wait for SUSE to support 4B. :( thanks above all ! SLES on Pi 4B will be awesome ...

andrum99

You should never set gpu_mem on any Pi above 512MB, since values over 512MB have never been tested by Raspberry Pi. Note that all of gpu_mem must be in the first 1GB of physical RAM, along with the Linux kernel and IO memory, so bad things happen if gpu_mem is set too high.

andrum99

The Pi 4B uses a completely different USB controller to all other models of Pi. The type A ports are all driven by a VLI chip - the VL805. The original USB 2.0 controller used on previous models of Pi is present on the type C connector that is normally used to power the board. I don't know whether t...

andrum99

A quick google suggests that you need to use xfreerdp to get dual monitor Remote Desktop (RDP) on Linux, since it seems other RDP clients don't support more than one screen per RDP connection.

andrum99

If one can't booting from the installing media, there's no possibility to INSTALL OS onto a PI Gasp! MILLIONS of RPi boards sold, and none can run an Operating System! Someone should fix that... Hint: https://www.raspberrypi.org/help/ Eh, mybe you have misunderstanding what I mean . I mean that I w...

andrum99

Dear All, I am using a raspberry pi B+ that uses a Broadcom BCM2837 SoC with an ARMV8 processor. I want to get the cpu temperature in a Linux kernel file. Like in x86, I can use rdmsr_on_cpu function to load the temperature from MSR_IA32_THERM_STATUS register. That's a very hardware-specific way of...

andrum99

Don't forget that a recovery.bin on a fresh SD card will ALWAYS recover the system and remove any malware that, in very unlikely circumstances, corrupt the EEPROM. BTW, I know of no disgruntled Brcm employees. And there certainly are no RPi ones! <fud> Since the VLI USB controller firmware is also ...

andrum99

How do you know the hard drive is spinning down? If you install hdparm and run hdparm -C /dev/your_drive it will tell you if the drive has spun down - reported as 'standby'. You can also lift up the drive to feel for the vibration of it rotating - if there is none then the drive has spun down. When ...

andrum99

Don't forget that a recovery.bin on a fresh SD card will ALWAYS recover the system and remove any malware that, in very unlikely circumstances, corrupt the EEPROM. BTW, I know of no disgruntled Brcm employees. And there certainly are no RPi ones! <fud> Since the VLI USB controller firmware is also ...

andrum99

config_hdmi_boost is not yet implemented on Pi 4. I think there are two realistic possibilities: 1. The Pi 4 has selected the wrong video mode, and the monitor is refusing to display anything. Which would be odd, as it is one of the modes returned by the EDID. 2. The cable or adaptor is faulty - the...

andrum99

Any speed tests must be done using wired network connections only. Speed tests done where either device is on wifi, or there is wifi in the path between them, are invalid since the wifi will cause a slowdown, no matter how fast the wifi device says it is connected. It seems that the Pi 4 is auto-neg...

andrum99

You normally don't use the framebuffer_width and framebuffer_height parameters. The normal way, if you are configuring the screen manually, is to use the hdmi_group and hdmi_mode settings. See the official documentation at https://www.raspberrypi.org/documentati ... t/video.md.

andrum99

From my point of view, the performance loss with Python is a pretty clear reason to stick with 32-bit. However, if the kernel can be updated to 64-bit while keeping Python and most of the other system utilities 32-bit, that would open the door to running where there is an advantage a few select bin...

andrum99

Ethernet flow control may not be available as a setting you can change on the router - in this case it should always be enabled. What speed is the Pi 4 connecting at - is it coming up in gigabit mode? You can install ethtool to find out: sudo apt update sudo apt install ethtool sudo ethtool eth0 The...

andrum99

Ok let's see. How likely is it to have a micro HDMI --> HDMI adapter or cable? Very unlikely because rare/obscure connector. That's not the issue. The issue is whether the monitor supports DisplayPort. Micro-HDMI to HDMI is a much simpler conversion than mini-DisplayPort to HDMI. You also need a GP...

andrum99

ejolson wrote: ↑
Sun Sep 01, 2019 2:03 am
Is there a guaranteed way to clear and reflash the Pi 4B EEPROM?

The recovery.bin method is meant to be guaranteed - presumably the boot ROM in the SoC looks for recovery.bin first, before allowing anything in the EEPROM to run.

andrum99

Raspberry Pi don't do gimmicks. The dual HDMI output is there because they have judged that a significant enough proportion of their (potential and current) customer base want dual HDMI monitor support. Mini DisplayPort is a non-starter as there are far more monitors that support HDMI than DisplayPo...

andrum99

Wonder what size EEPROM the 2711 ROM boot can handle? Those that want netboot, will they also need USB boot? I think Jamesh said the EEPROM can be programmed with Flashrom? So if iPV6/iPEX etc use up the entire EEPROM and leaves no room for SD/USB boot it can still be unbricked. Raspberry Pi have s...

andrum99

As I understand it, the decoders are still present in the SoC, but are no longer being licensed by Raspberry Pi.

andrum99

timg236 wrote: ↑
Fri Aug 30, 2019 8:59 pm
As I said the manual process requires root. Try it

Sorry - my mistake. As you were!

andrum99

The normal method for update would be via system which already has root priviledes, this also makes the output invisible. After extensive discussion about the the UI we decided that for the majority of non-technical users the service should just do the right thing. i.e. random permissions prompts f...

andrum99

I've got another couple of questions: Firstly, upon checking for a new EEPROM firmware, the rpi-eeprom-update tool currently reports '*** UPDATE REQUIRED ***'on my Pi 4. I'm wondering if perhaps it would be better worded as '*** UPDATE AVAILABLE ***'? Secondly, does the rpi-eeprom-update tool, when...

Search found 1194 matches

Re: How to INSTALL Linux onto a Raspberry 4?

Re: RPi4b USB 2.0 differences with previous RPi?

Re: Raspberry Pi 4 temperature

Re: How to INSTALL Linux onto a Raspberry 4?

Re: Pi 4 Boot failure if you set the GPU memory split too high [with solution]

Re: RPi4b USB 2.0 differences with previous RPi?

Re: Pi 4 dual monitor setup to Windows 7 Pro VM advice

Re: How to INSTALL Linux onto a Raspberry 4?

Re: Obtain CPU Temperature in Kernel

Re: Raspberry Pi 4 usb boot?

Re: Pi4: USB drive spin down issues

Re: Raspberry Pi 4 usb boot?

Re: RPI 4 video output

Re: RPI4 Poor Network Speeds

Re: Config.txt framebuffer?

Re: Why moving to 64bit?

Re: RPI4 Poor Network Speeds

Re: Why moving to 64bit?

Re: Raspberry Pi 4 usb boot?

Re: Why moving to 64bit?

Re: Raspberry Pi 4 usb boot?

Re: has the H263 decoder been removed from the RPi 4 SOC?

Re: Raspberry Pi4 EEPROM update package - beta

Re: Raspberry Pi4 EEPROM update package - beta

Re: Raspberry Pi4 EEPROM update package - beta