Date: Mon, 28 Mar 2016 14:07:31 +0100 From: Mark R V Murray <markm@FreeBSD.org> To: Emmanuel Vadot <manu@bidouilliste.com> Cc: freebsd-arm <freebsd-arm@freebsd.org> Subject: Re: RPi 2 with 7-inch touchscreen. Message-ID: <6E62CADD-CDDF-45BB-986A-733F30F77DC8@FreeBSD.org> In-Reply-To: <20160328145733.0b9c9e3a42c7e623d6c68e82@bidouilliste.com> References: <C03C0CD0-F135-4FF1-9F07-D1C73F46E5CF@FreeBSD.org> <20160328145733.0b9c9e3a42c7e623d6c68e82@bidouilliste.com>
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--Apple-Mail=_046206F5-3FFE-41BD-84F3-DFEDC91F20DB Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii > On 28 Mar 2016, at 13:57, Emmanuel Vadot <manu@bidouilliste.com> = wrote: > Hi, >=20 > 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 >=20 > Thanks, >=20 > On Mon, 28 Mar 2016 13:44:36 +0100 > Mark R V Murray <markm@FreeBSD.org> wrote: >=20 >> Hi Folks, >>=20 >> 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/= >>=20 >> I know the touchscreen works, because it works with RaspBian. I can't = get any activity out of it with FreeBSD, however. >>=20 >> 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. >>=20 >> 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. >>=20 >> The screen stays stubbornly OFF. >>=20 >> Here is the relevant extract of CONFIG.TXT: >>=20 >> hdmi_force_unplug=3D1 >> or >> hdmi_force_hotplug=3D1 >> or >> #hdmi_safe=3D1 >> or >> hdmi_ignore_edid=3D0xa5000080 >> hdmi_drive=3D2 >> hdmi_group=3D2 >> hdmi_mode=3D28 >>=20 >> ... 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. >>=20 >> I suspect the DTB file as FreeBSD's is much smaller than RaspBian's, = but I'm not all that clued in that department. >>=20 >> Has anyone had any better luck than me? >>=20 >> M >> -- >> Mark R V Murray >>=20 >=20 >=20 > -- > Emmanuel Vadot <manu@bidouilliste.com> >=20 -- Mark R V Murray --Apple-Mail=_046206F5-3FFE-41BD-84F3-DFEDC91F20DB Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.28 Comment: GPGTools - http://gpgtools.org iEYEARECAAYFAlb5LJgACgkQzQuKNftX15N0LACeOdxjgTq8Du7l0t9eWCR3ftfk 1hQAn02py2DF1rHswJqzVkYrtwS5jkqh =reur -----END PGP SIGNATURE----- --Apple-Mail=_046206F5-3FFE-41BD-84F3-DFEDC91F20DB--
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