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by Brad Q
Wed Dec 18, 2019 11:02 pm
Forum: General discussion
Topic: PiHole perforamance effect on non-PiHole Pi.
Replies: 10
Views: 715

Re: PiHole perforamance effect on non-PiHole Pi.

I guess you are missing the my point. A Pi4 should be massively overkill to run Pihole. What I am interested in is if using a pihole(separate machine) on a network will lighten the load on a desktop (also a Pi).
by Brad Q
Wed Dec 18, 2019 10:26 pm
Forum: General discussion
Topic: PiHole perforamance effect on non-PiHole Pi.
Replies: 10
Views: 715

Re: PiHole perforamance effect on non-PiHole Pi.

Yeah, the cpu load goes up to 70%+. On the P4-4GB memory is really not an issue. I have yet to see it much over 50% use, regardless of what I have open. IF it was a network related thing, would the performance not be the same on my PC at it is on the Pi4? There is a marked difference between the two...
by Brad Q
Wed Dec 18, 2019 10:07 pm
Forum: General discussion
Topic: PiHole perforamance effect on non-PiHole Pi.
Replies: 10
Views: 715

Re: PiHole perforamance effect on non-PiHole Pi.

Are your desktops regular PCs or Pis? On a regular PC I would suspect that one would not really see much of a difference because the load/cpu ratio would be tiny, but on a Pi?

Edit: Miss that you said it was a desktop PC. Dough!
by Brad Q
Wed Dec 18, 2019 9:39 pm
Forum: Beginners
Topic: Pi 4 actual ethernet speed and USB 3.0
Replies: 6
Views: 1919

Re: Pi 4 actual ethernet speed and USB 3.0

My current solution is a fast USB flash drive (100MBps(not Mbps) are available for fairly cheap $15?). There is a utility here on the site (usb-boot.zip) that automates the process of putting a pointer on the SD card so you can run off of a USB device. Switching from running off of the SD card to a ...
by Brad Q
Wed Dec 18, 2019 9:20 pm
Forum: General discussion
Topic: PiHole perforamance effect on non-PiHole Pi.
Replies: 10
Views: 715

PiHole perforamance effect on non-PiHole Pi.

I could not find this issue addressed anywhere but maybe it is just my bad GoogleFu. IF I add a PiHole box (say an additional Pi4) to my network, will there be a significant effect on the desktop performance (youtube, general browsing, etc) of my Pi4 daily driver? My theory being that it should drop...
by Brad Q
Wed Dec 18, 2019 1:01 am
Forum: Troubleshooting
Topic: Hdmi->DVI back light issue. Pi4
Replies: 8
Views: 915

Re: Hdmi->DVI back light issue. Pi4

It did not function on the "stock" (9/25?) firmware. However after a rpi=update it works as expected. Thanks
by Brad Q
Tue Dec 17, 2019 9:33 pm
Forum: Troubleshooting
Topic: Hdmi->DVI back light issue. Pi4
Replies: 8
Views: 915

Re: Hdmi->DVI back light issue. Pi4

It looks like it may be a conflict between the gnome flashback screen saver and the Xscreensaver. Preferences->Desktop sessions settings-> uncheck Screensaver(Gnome Flashback). I will not know for sure for a few hours (after dark). Thanks Jamesh. I think I started to fix this once before but got sid...
by Brad Q
Tue Dec 17, 2019 9:04 pm
Forum: Troubleshooting
Topic: Hdmi->DVI back light issue. Pi4
Replies: 8
Views: 915

Re: Hdmi->DVI back light issue. Pi4

It is already installed and DPMS is on.
by Brad Q
Tue Dec 17, 2019 7:59 pm
Forum: Troubleshooting
Topic: Hdmi->DVI back light issue. Pi4
Replies: 8
Views: 915

Hdmi->DVI back light issue. Pi4

Monitor is a Samsung SyncMaster 940BW. While it is quite old it has been and is a good 1440X900 monitor with VGA and DVI inputs. I had been using the monitor with my Xenon box with a Displayport to DVI cord which worked fine. Now I have moved to the Pi4-4GB as my daily driver but still need to use t...
by Brad Q
Fri Dec 13, 2019 2:42 pm
Forum: General discussion
Topic: On/off switch on the case?
Replies: 2
Views: 356

Re: On/off switch on the case?

I thought about that when I first got my Pi4. In the short term I just picked up a power strip. Just plug everything into that. It works so well I just dropped the idea of adding a switch to the Pi4 itself.
by Brad Q
Fri Dec 13, 2019 2:36 pm
Forum: General discussion
Topic: Which passive heatsink case is best for RPi4 to run LibreELEC?
Replies: 10
Views: 711

Re: Which passive heatsink case is best for RPi4 to run LibreELEC?

On a Pi4 running Kodi the Flirc/Kodi case will be fine. In a 75F room my Pi4 idles at about 55C(my Pi4 runs hotter than most) but never exceeds 74C no matter what load I put on it. The Pi4 starts to throttle at 80C, so you should never see any throttling with a Flirc/Kodi case. IF a run a 120mm 12V ...
by Brad Q
Mon Nov 18, 2019 11:50 pm
Forum: Beginners
Topic: Mouse dragging instead of clicking
Replies: 2
Views: 197

Re: Mouse dragging instead of clicking

Since I spend a fair amount of time on dslreports.com that is the most common (all though I have noticed it on other sites) place it occurs. Go to any of the posts that have several pages of replies and hit the little page numbers. Half(?) the time it drags the icon rather than going to the page.
by Brad Q
Mon Nov 18, 2019 12:13 pm
Forum: Beginners
Topic: Mouse dragging instead of clicking
Replies: 2
Views: 197

Mouse dragging instead of clicking

Pi4 full updated Raspbian. I am seeing an issue with both Firefox and chromium where on a website I click on a small icon like a page number and it picks it up and drags it rather than selecting it. I switched out the wireless Microsoft mouse with a generic (out the the junk box) mouse and the behav...
by Brad Q
Fri Nov 15, 2019 10:26 am
Forum: General discussion
Topic: Worse USB speed on RPI 4 than RPI 3 B
Replies: 13
Views: 997

Re: Worse USB speed on RPI 4 than RPI 3 B

Your PC getting 26, pi3 getting 20, and pi4 getting 15 is pointing to something going on. I would expect the PC to have the most excess power, followed by running the PI3 with an oversized power supply (3A vs 2.5A), followed by the Pi4 running the standard sized power supply for it(3A). The reason I...
by Brad Q
Fri Nov 15, 2019 4:22 am
Forum: General discussion
Topic: Worse USB speed on RPI 4 than RPI 3 B
Replies: 13
Views: 997

Re: Worse USB speed on RPI 4 than RPI 3 B

First just to make sure: you understand that MBps is Megabytes per second and Mbps is Megabits per second? For instance gigabit Ethernet is 1000Mbps but only 125MBps(theoretically). The limitation came about in discussing the SD card reader vs a USB device (40MBps vs 350MBps). I took a quick look ar...
by Brad Q
Fri Nov 15, 2019 3:37 am
Forum: General discussion
Topic: Worse USB speed on RPI 4 than RPI 3 B
Replies: 13
Views: 997

Re: Worse USB speed on RPI 4 than RPI 3 B

First, that is a LOT of devices to be running off the Pi all at once. There are a couple of potential problems there, power and bandwidth. IF I remember correctly the USB total bandwidth for the Pi4 is 350MBps(MB not Mb), so you could be running into an issue there. Second the power draw of the Pi4 ...
by Brad Q
Fri Nov 15, 2019 3:18 am
Forum: General discussion
Topic: Worse USB speed on RPI 4 than RPI 3 B
Replies: 13
Views: 997

Re: Worse USB speed on RPI 4 than RPI 3 B

You might try a lsusb and look and see if there is a compatibility issue with that device.
by Brad Q
Thu Nov 14, 2019 10:16 pm
Forum: General discussion
Topic: Worse USB speed on RPI 4 than RPI 3 B
Replies: 13
Views: 997

Re: Worse USB speed on RPI 4 than RPI 3 B

Not sure if it would make a difference but are you using the 2.0 us ports on the Pi4 or the 3.0 ports?
by Brad Q
Thu Nov 07, 2019 10:41 pm
Forum: Advanced users
Topic: Running Raspbian from USB Devices : Made Easy
Replies: 313
Views: 112021

Re: Running Raspbian from USB Devices : Made Easy

I suspect that this is something you have done that is not (at least directly) related to usb-boot. As I stated above my system behaves "normally". Everything is auto mounted that same as it was before the use of usb-boot.
by Brad Q
Wed Nov 06, 2019 10:48 pm
Forum: Advanced users
Topic: Running Raspbian from USB Devices : Made Easy
Replies: 313
Views: 112021

Re: Running Raspbian from USB Devices : Made Easy

I just checked on my 4-4GB and it sees all four ports as well. Tested by moving USB stick from port to port.
by Brad Q
Wed Nov 06, 2019 9:22 pm
Forum: Advanced users
Topic: Running Raspbian from USB Devices : Made Easy
Replies: 313
Views: 112021

Re: Running Raspbian from USB Devices : Made Easy

Ron
Thanks for making this. It has allowed me to use my Pi4 for my daily drivers. Just wondering if, when you update this, do those that have already used it to set up their systems need to do anything?
by Brad Q
Wed Oct 23, 2019 4:06 am
Forum: Beginners
Topic: Why buy 32GB or less MicroSD card when 64GB is a few dollars more?
Replies: 26
Views: 2543

Re: Why buy 32GB or less MicroSD card when 64GB is a few dollars more?

IF you are talking about the Pi4 you are MUCH better off going with a smaller card(cheaper) and running the system off of a USB device. The card reader chip is limited to 48MBps(?) while the USB chip is limited to 350MBps. Basically you put a file on the SD card that points to the USB device. RonR h...
by Brad Q
Wed Oct 23, 2019 3:58 am
Forum: Beginners
Topic: Compatible USB Dongles For HDMI In
Replies: 15
Views: 9250

Re: Compatible USB Dongles For HDMI In

The chip limit on the Pi4 USB is 350MBps(total). So inputting HDMI uncompressed is pretty much a no go at any real level. IF we knew what you were actually trying to accomplish we might be able to offer more help. VNC?
by Brad Q
Wed Oct 23, 2019 3:47 am
Forum: Beginners
Topic: Which Pi for a beginner?
Replies: 9
Views: 899

Re: Which Pi for a beginner?

I am using the Pi4-4Gb for a desktop. VERY seldom have I seen the memory usage above 50%. So if money is on the tight side dropping down to 2Gb is reasonable. The Flirc case pretty well addresses the heat issues for most users.I got mine for $20 with shipping. I push mine pretty hard and it always s...
by Brad Q
Wed Oct 23, 2019 3:35 am
Forum: Beginners
Topic: Performance vs durability (using sshfs or rsync for remote backup)
Replies: 2
Views: 306

Re: Performance vs durability (using sshfs or rsync for remote backup)

Unless something is massively setup wrong, sshfs is really not that slow. However I do not involve samba, just sshfs straight to whatever directory you are using. Depending on which PI you are using you can be better off using a flash drive for the files rather than the sd card. On the Pi4 USB(depen...

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