Date: Tue, 17 Feb 2015 00:05:26 +0000 From: Gary Palmer <gpalmer@freebsd.org> To: Hans Petter Selasky <hps@selasky.org> Cc: freebsd-current@freebsd.org, Shawn Webb <lattera@gmail.com> Subject: Re: Pluggable frame buffer devices Message-ID: <20150217000526.GC29176@in-addr.com> In-Reply-To: <54E2247E.3000207@selasky.org> References: <54E11A57.3030105@selasky.org> <2245985.dTFM2y6A0x@shawn-work-laptop> <54E2247E.3000207@selasky.org>
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On Mon, Feb 16, 2015 at 06:10:22PM +0100, Hans Petter Selasky wrote: > On 02/16/15 16:39, Shawn Webb wrote: > > On Sunday, February 15, 2015 11:14:47 PM Hans Petter Selasky wrote: > >> Hi, > >> > >> I've added support for USB display link adapters to FreeBSD-11-current, > >> but the kernel panics once "vt_fb_attach(info)" is called from > >> "fbd_register(struct fb_info* info)" when the USB device is plugged or > >> udl.ko is loaded. Is this a known issue? > >> > >> REF: https://svnweb.freebsd.org/base/head/sys/dev/usb/video/udl.c > >> > >> --HPS > > > > I personally can't answer your question. But I'd love to help test this, > > especially since Haswell graphics isn't supported, yet, and my laptop is > > running Haswell. What would be a good USB display device to buy to help test > > this awesome work out? > > Hi Shawn, > > I think any USB device that uses the brand name "DisplayLink" will work. Hi HPS, I thought the later generations, especially the ones with USB3 support, used a propretary encryption between the host and the adapter that was not currently supported by any F/OSS operating system? If you look on the DisplayLink forums there are angry threads about the lack of Linux support for the later generation dongles. e.g. http://displaylink.org/forum/showthread.php?s=77a3ad0ad0f21031f0996325f249f584&t=61689 (there's a much longer thread somewhere which is more angry, but I've lost the link) Regards, Gary
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