Date: Mon, 28 Mar 2016 15:15:30 +0200 From: Emmanuel Vadot <manu@bidouilliste.com> To: Mark R V Murray <markm@FreeBSD.org> Cc: freebsd-arm <freebsd-arm@freebsd.org> Subject: Re: RPi 2 with 7-inch touchscreen. Message-ID: <20160328151530.3d1834f05264f9173c14a86a@bidouilliste.com> In-Reply-To: <6E62CADD-CDDF-45BB-986A-733F30F77DC8@FreeBSD.org> References: <C03C0CD0-F135-4FF1-9F07-D1C73F46E5CF@FreeBSD.org> <20160328145733.0b9c9e3a42c7e623d6c68e82@bidouilliste.com> <6E62CADD-CDDF-45BB-986A-733F30F77DC8@FreeBSD.org>
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Oh, I thought that the touchscreen part was the problem. I know that gonzo@ have this screen and he have it working (don't know if it's RPI-B or RPI-2) If I understand correctly it works with HDMI but not with the Display Connector ? config.txt might needs some line to enable it. On Mon, 28 Mar 2016 14:07:31 +0100 Mark R V Murray <markm@FreeBSD.org> wrote: > > > On 28 Mar 2016, at 13:57, Emmanuel Vadot <manu@bidouilliste.com> wrote: > > Hi, > > > > I'm not sure that we support it, from what I understand the official screen seems to use i2c for the touchscreen part (via the FT5406 IC). > > Could you run "i2c -s" on the different i2c busses to see if the chip answers ? > > I see nothing on bus scans of /dev/iic[01], nut I know that I2C works as I can talk to other I2C devices (not connected at the moment). > > What is more important is video; the "touch" aspect can wait. > > M > > > > > Thanks, > > > > On Mon, 28 Mar 2016 13:44:36 +0100 > > Mark R V Murray <markm@FreeBSD.org> wrote: > > > >> Hi Folks, > >> > >> I have an RPi2 and I'm having some difficulties with the "official" 7-inch touch-screen: https://www.raspberrypi.org/blog/the-eagerly-awaited-raspberry-pi-display/ > >> > >> I know the touchscreen works, because it works with RaspBian. I can't get any activity out of it with FreeBSD, however. > >> > >> I'm using FreeBSD-11-CURRENT, and the boot image is based on an 11-CURRENT "official" download, but I added a very recent build of sysutils/u-boot-rpi2. > >> > >> I can build CURRENT on the machine (using a USB SSD, manually mounted), and I made sure I had the latest RPI2.DTB file in the FAT partition. > >> > >> The screen stays stubbornly OFF. > >> > >> Here is the relevant extract of CONFIG.TXT: > >> > >> hdmi_force_unplug=1 > >> or > >> hdmi_force_hotplug=1 > >> or > >> #hdmi_safe=1 > >> or > >> hdmi_ignore_edid=0xa5000080 > >> hdmi_drive=2 > >> hdmi_group=2 > >> hdmi_mode=28 > >> > >> ... and I've tried a couple of combinations of the above with no luck. I can make an HDMI TV work, but not the inbuilt ribbon-cable interface. > >> > >> I suspect the DTB file as FreeBSD's is much smaller than RaspBian's, but I'm not all that clued in that department. > >> > >> Has anyone had any better luck than me? > >> > >> M > >> -- > >> Mark R V Murray > >> > > > > > > -- > > Emmanuel Vadot <manu@bidouilliste.com> > > > > -- > Mark R V Murray > -- Emmanuel Vadot <manu@bidouilliste.com>
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