Rod, You referenced the download page and so I just went through https://linuxcnc.org/downloads/ again and liked it a lot. Very clear, many thanks! Whoever wrote that - many thanks! My initial reflex was like "Our documentation should be as good or better" and then thought that maybe the documentation should in contrary just depend on the download page to know best what to download and we should possibly even minimize our LinuxCNC documentation on OS install questions with a pointer to the Download page?!?
I downloaded the RPi5 image , ran xz -dt on it with no complaint, but then got a complaint by rpi-imager, the image size would not be a multiple of 512. That was with the same SD that had held the previous version. Did anybody else get that message, too? I ran this with another machine, with a USB SD adapter, so something could be off. Will try another download and another machine, but should someone else run into this, please kindly shout out. Happy New Year to everyone, Steffen > Gesendet: Sonntag, 31. Dezember 2023 um 20:06 Uhr > Von: "Rod Webster" <r...@vehiclemods.net.au> > An: "EMC developers" <emc-developers@lists.sourceforge.net> > Betreff: Re: [Emc-developers] RPi5 + Raspbian + LinuxCNC latency tests - > first impressions > > Hi guys, > I've sent new images for the Pi 4b and Pi 5 to Andy for testing, with a > view that they be deployed on the downloads page. These both use the 6.1.69 > kernel which is the very first version where the Raspberry Kernel and the > PREEMPT_RT patch align perfectly. Hopefully over the last 6 weeks, the pi5 > is better supported now. > > *Raspberry Pi 4b/400* > https://drive.google.com/file/d/1Bzx_PqRqdJVTMPlNMEG7z_RjJHf7QcDX/view?usp=sharing > > *Raspberry PI 5* > https://drive.google.com/file/d/1HBXliMQE-OvU0PQPYEOK3OqJz0-CTO5K/view?usp=sharing > > For initial login credentials, and initial configuration, please refer to > the download page > https://linuxcnc.org/downloads/ > > Rod Webster > *1300 896 832* > +61 435 765 611 > Vehicle Modifications Network > www.vehiclemods.net.au > > > On Sun, 31 Dec 2023 at 01:35, Steffen Möller via Emc-developers < > emc-developers@lists.sourceforge.net> wrote: > > > Rod, > > > > Thank you for your kind and swift reply. > > HDMI sound works perfectly with the Raspbian default. Also, I think this > > would find quite some user base, since anyone reusing an old TV or a > > feature-rich monitor with the RPi would immediately benefit. I also > > mentioned games before :) > > > > The RPi image we come up with does not need to be perfect. Our users > > should just not be surprised with anythin when using it. My wishlist would > > be > > * A pointer to our manual at all the places where the image could be > > downloaded > > * The manual describing > > - how the image is created so they can contribute > > - what not to do with that image > > > > On a sidenote, please have a look at http://raspi.debian.net/. Nothing on > > the RPi5, though maybe this resonates somehow with what we are after. > > > > Best, > > Steffen > > > > > Gesendet: Samstag, 30. Dezember 2023 um 14:16 Uhr > > > Von: "Rod Webster" <r...@vehiclemods.net.au> > > > An: "EMC developers" <emc-developers@lists.sourceforge.net> > > > Betreff: Re: [Emc-developers] RPi5 + Raspbian + LinuxCNC latency tests - > > first impressions > > > > > > Steffen, > > > > > > Some good feedback thanks. > > > I'm really not surprised things broke on an update because we compile the > > > kernel from the Raspberry sources at a specific point in the commit tree. > > > It's not a generic Debian build by any means. LIkewise installing a > > > different desktop is also asking for trouble. > > > > > > Having no sound is also not surprising because in the absence of an audio > > > jack you are dependent on HDMI and I know other SBC's have issues with > > HDMI > > > sound. If someone has a solution please let me know > > > > > > Please bear in mind that this image is over 6 weeks old and there have > > been > > > several kernel releases and countless commits to the raspberry pi kernel > > > since then. > > > > > > But for me, the main thing is that it's only in the last few days that > > the > > > kernel version and the PREEMPT_RT patch align perfectly so I am hoping my > > > next version is more robust. That has never happened in the life of the > > pi5 > > > before. > > > > > > To test latency on the console, you can install the debian rt-tests > > > package. I have found that our latency-histogram yields similar results. > > > > > > I don't think a single 400 usec spike when opening a browser is of > > concern. > > > Thats not something you do when running a gcode program. > > > > > > Hopefully I will have some peace and quiet over the weekend to build a > > new > > > version. > > > > > > Rod Webster > > > *1300 896 832* > > > +61 435 765 611 > > > Vehicle Modifications Network > > > www.vehiclemods.net.au > > > > > > > > > On Sat, 30 Dec 2023 at 21:58, Steffen Möller via Emc-developers < > > > emc-developers@lists.sourceforge.net> wrote: > > > > > > > Heya, > > > > > > > > Not only that we have a RPi4/5 confusion, you managed to add a Rod/b > > one. > > > > > > > > So, the image Andy pointed to (which I understand has its roots with > > Rod) > > > > works very nicely. While idle latencies did not exceed 12µs, mostly > > below > > > > 10. That was truly impressive. Once I got wifi up and initiated some > > > > downloads, it doubled to 24µs, much like the value Andy got. When I > > started > > > > up firefox and selected youtube, I got a single value of 400µs, though. > > > > > > > > A complaint I have is that there was no sound in the default > > installation. > > > > The 400µs I like to speculate may be associated with the failed > > attempt to > > > > perform the respective initialisations. > > > > > > > > Another complaint is that the image is not stable when it comes to > > > > updates. I was curious on the effect that the installation of KDE would > > > > have on the latencies, and if the missing sound would install with it. > > So I > > > > installed the package "task-desktop-kde" with debfoster. That ruined > > the > > > > reboot since the expected kernel image was no longer found. I made a > > > > screenshot with my phone and send it to whoever is interested, but my > > hunch > > > > is that Rod's new image if depending more on Debian's installation will > > > > likely solve such inconsistency issues. > > > > > > > > Do we have any latency tools that would run without X, so we get a > > > > baseline of what software layer is costing us how much? I recall that > > we do > > > > but latency-test at least does not. I am asking since the > > latency-sensitive > > > > gaming industry should have some strong incentive to look into what we > > are > > > > doing but I have not seen too much from them, yet. Ok - this may be > > > > something for another thread. > > > > > > > > Best, > > > > Steffen > > > > > > > > > > > > > Gesendet: Samstag, 30. Dezember 2023 um 04:15 Uhr > > > > > Von: "Rob M" <ozzyro...@gmail.com> > > > > > An: "EMC developers" <emc-developers@lists.sourceforge.net> > > > > > Betreff: Re: [Emc-developers] RPi5 + Raspbian + LinuxCNC latency > > tests - > > > > first impressions > > > > > > > > > > Umm Rod Old Mate was referring to the my linked images for the RPi4, > > not > > > > > your ones, the ones I built for other reasons. > > > > > > > > > > On Sat, Dec 30, 2023 at 1:26 PM Rod Webster <r...@vehiclemods.net.au > > > > > > > wrote: > > > > > > > > > > > >None of those images were for the Rpi-5, I thought the RPi4 in the > > > > file > > > > > > > > > > > > Well yes they are. Andy and Steffan are using pi5 variant of my > > image > > > > which > > > > > > is used for the 2.9.1 release from here: > > > > > > > > > > > > > > > > > > https://drive.google.com/file/d/1H_q0Ra-27ZDOhquvq179beUZQNVlex1f/view?usp=sharing > > > > > > Filename (with rpi-5 in it): > > > > > > rpi-5-debian-bookworm-6.1.61-rt15-arm64-ext4-2023-11-17-1520.img.xz > > > > > > It was built for the Pi 5's BCM2712 board. > > > > > > Username: cnc Password: cnc > > > > > > to finalise the installation (wifi, password , locale etc) type: > > sudo > > > > > > menu-config > > > > > > > > > > > > If the screen resolution is not right, it should be able to be > > fixed > > > > with > > > > > > a parameter in one of the pi's config files. > > > > > > > > > > > > I have just completed and tested a 2.9.2 installer for X86 on > > Debian > > > > 12.4. > > > > > > I managed to bypass the raspberry-firmware installation bug in > > earlier > > > > > > versions (Inherited from Debian) > > > > > > > > > > > > > > > > > > https://drive.google.com/file/d/1nw0dGt5aZXVo8k68lLf4N_nzc0wTczAg/view?usp=sharing > > > > > > I will also rebuild the images for the Pi4 and Pi5, but I am > > kernelled > > > > out > > > > > > for today! > > > > > > > > > > > > Rod Webster > > > > > > *1300 896 832* > > > > > > +61 435 765 611 > > > > > > Vehicle Modifications Network > > > > > > www.vehiclemods.net.au > > > > > > > > > > > > > > > > > > On Sat, 30 Dec 2023 at 12:00, Rob M <ozzyro...@gmail.com> wrote: > > > > > > > > > > > > > None of those images were for the Rpi-5, I thought the RPi4 in > > the > > > > file > > > > > > > name would made the obvious, but as this a topic about the 4 I > > guess > > > > > > there > > > > > > > could be some confusion. > > > > > > > > > > > > > > As for the recent RPi5 image you tried does that have any issues > > with > > > > > > > screen resolution? Is it stuck on a single resolution? Does it > > > > detect the > > > > > > > display it's attached to ? These issues, as mentioned > > previously, a > > > > game > > > > > > > stopper for myself. If they aren't an issue could you say what > > > > > > > kind-brand-model display you're using ? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Sat, 30 Dec 2023, 11:40 andy pugh, <bodge...@gmail.com> > > wrote: > > > > > > > > > > > > > > > On Sat, 30 Dec 2023 at 00:27, Steffen Möller via Emc-developers > > > > > > > > <emc-developers@lists.sourceforge.net> wrote: > > > > > > > > > > > > > > > > > Andy's image was a success - I just did not know the > > passwords. > > > > > > > > > > > > > > > > I mentioned it in a previous message, but it is cnc / cnc > > > > > > > > > > > > > > > > -- > > > > > > > > atp > > > > > > > > "A motorcycle is a bicycle with a pandemonium attachment and is > > > > > > > > designed for the especial use of mechanical geniuses, > > daredevils > > > > and > > > > > > > > lunatics." > > > > > > > > — George Fitch, Atlanta Constitution Newspaper, 1912 > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > > > > Emc-developers mailing list > > > > > > > > Emc-developers@lists.sourceforge.net > > > > > > > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > > > Emc-developers mailing list > > > > > > > Emc-developers@lists.sourceforge.net > > > > > > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > > Emc-developers mailing list > > > > > > Emc-developers@lists.sourceforge.net > > > > > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > > > > > > > > > > > > > > _______________________________________________ > > > > > Emc-developers mailing list > > > > > Emc-developers@lists.sourceforge.net > > > > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > > > > > > > > > > > > > > > _______________________________________________ > > > > Emc-developers mailing list > > > > Emc-developers@lists.sourceforge.net > > > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > > > > > > > > _______________________________________________ > > > Emc-developers mailing list > > > Emc-developers@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > > > > > > > _______________________________________________ > > Emc-developers mailing list > > Emc-developers@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
