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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[-- Attachment #1 --] > 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 [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.28 Comment: GPGTools - http://gpgtools.org iEYEARECAAYFAlb5LJgACgkQzQuKNftX15N0LACeOdxjgTq8Du7l0t9eWCR3ftfk 1hQAn02py2DF1rHswJqzVkYrtwS5jkqh =reur -----END PGP SIGNATURE-----home | help
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