Because typical small touch screens eg. those that work with Rpi are not working with OpenBSD, does that mean the alternatives are pretty much going to be at least 2-3x bigger in form size if a small handheld computer was to be made? I looked up USB display examples and that may seem like it can work as the size is small and its just a tiny cable.
https://statics3.seeedstudio.com/product/USB%20TFT%20Display_03.jpg is this an example of what you meant? I am can be optimistic about having a setup like this versus a huge brick. On Tue, Nov 22, 2016 at 7:32 PM, Tinker <ti...@openmailbox.org> wrote: > In the absence of MALI support, there are > * Supported USB display adapters ( http://man.openbsd.org/OpenBSD > -current/man4/wsudl.4 + http://man.openbsd.org/udl.4 ), > * miniPCIe-based video adapters ( http://versalogic.com/Products > /PDF/DS-MPEe-V5.pdf , not sure if that chipset is supported), and > * miniPCIe to PCIe adapters ( http://www.banggood.com/Mini-P > CI-E-Version-V8_0-EXP-GDC-Beast-Laptop-External-Independent- > Video-Card-Dock-p-1011222.html ) that you can plug an ordinary graphics > card to. > > iMX6 (supported) and RK3399 (not supported) have miniPCIe. > > Not sure if iMX6' (mini)PCIe is supported on OpenBSD? > > I guess otherwise the ARM architecture not brings any constraints in the > ability to use these. > > > On 2016-11-23 02:57, Rob Sciuk wrote: > >> Enlightenment has a fairly efficient frame buffer type interface used >> in embedded systems (refigerators, phones, watches etc) which can work >> on X11 or Wayland (IIRC). That might solve the problem for >> OpenBSD/Arm. >> >> >> On Tue, 22 Nov 2016, Tinker wrote: >> >> Date: Tue, 22 Nov 2016 20:17:27 +0800 >>> From: Tinker <ti...@openmailbox.org> >>> To: Juan Francisco Cantero Hurtado <i...@juanfra.info> >>> Cc: Haroon Khalid <har...@sodacrunch.com>, arm@openbsd.org, >>> owner-...@openbsd.org >>> Subject: Re: Can a touch screen with with a typical small arm device and >>> OpenBSD? >>> >>> Juan, >>> >>> Ok you're right this is unimportant. Just for completeness for now, >>> >>> Is it possible to do an altogether opensource unaccellerated graphics >>> driver for MALI today, based on all sources you've seen out there? >>> >>> Also what's KMS about, I see https://lwn.net/Articles/568169/ and >>> http://events.linuxfoundation.org/sites/events/files/slides/ >>> brezillon-drm-kms.pdf but don't make too much sense, what's it about? >>> >>> Anyhow yeah you're right there's much more important things like 64bit. >>> >>> Tinker >>> >>> On 2016-11-22 10:41, Juan Francisco Cantero Hurtado wrote: >>> >>>> On Tue, Nov 22, 2016 at 10:05:40AM +0800, Tinker wrote: >>>> >>>>> Juan, >>>>> >>>>> Re console: >>>>> Is there not even console graphics on the ARM boards yet, so only >>>>> serial >>>>> interface? >>>>> >>>> >>>> The HDMI/Video port requires a KMS driver. >>>> >>>> >>>>> Re X: >>>>> Using open-source drivers only, you can actually run X on the Mali >>>>> GPU:s >>>>> (i.e. the chips in most ARM:s), unaccelerated. >>>>> >>>> >>>> IIRC, the most of ARM boards on Linux use a KMS driver + Xorg >>>> modesetting driver. Anyway, the devs are working on more important >>>> things for the platform. >>>> >>>> >>>>> Here's a video showing this on an EOMA68-A20 board in some Linux: >>>>> https://youtu.be/iM4cDjGY9vY?t=180 . >>>>> >>>>> The low speed of the A20 CPU results in some flickering when switching >>>>> windows and tabs. I think on the modern ~2Ghz ARM:s e.g. RK3399, as its >>>>> single-thread and memory speed is approx 5x that of the A20, the >>>>> unaccelerated X should provide a perfect desktop experience (web >>>>> browsing, >>>>> openoffice etc., anything except video decoding). >>>>> >>>>> It would be super ultra cool to be able to do this on OpenBSD some day. >>>>> >>>>> Tinker >>>>> >>>>> On 2016-11-22 07:48, Juan Francisco Cantero Hurtado wrote: >>>>> > On Mon, Nov 21, 2016 at 11:46:48AM -0700, Haroon Khalid wrote: >>>>> > > Is there any example of a touch screen like this working with a >>>>> > > beaglebone >>>>> > > or raspberry pi for example? >>>>> > > >>>>> > > https://www.adafruit.com/product/1601 >>>>> > >>>>> > No, we don't have graphical support for the ARM boards yet. >>>>> > >>>>> > Try with a "standard" (i.e. without special drivers) touch screen and >>>>> > i386/amd64. >>>>> >>>>> >>> >>> >
