Date: Mon, 28 Mar 2016 14:57:33 +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: <20160328145733.0b9c9e3a42c7e623d6c68e82@bidouilliste.com> In-Reply-To: <C03C0CD0-F135-4FF1-9F07-D1C73F46E5CF@FreeBSD.org> References: <C03C0CD0-F135-4FF1-9F07-D1C73F46E5CF@FreeBSD.org>
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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 anwsers ? 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>
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