Date: Sun, 7 Jun 2020 22:14:20 -0700 From: Mark Millard <marklmi@yahoo.com> To: bob prohaska <fbsd@www.zefox.net> Cc: freebsd-arm@freebsd.org Subject: Re: X trouble on Rpi3, was Re: Missing /dev/io on rpi3 running 12-stable Message-ID: <978CB10D-C593-4C71-81A9-79CDD63118A8@yahoo.com> In-Reply-To: <EE6335D3-E53E-47E4-A6A6-C63593E6F4A5@yahoo.com> References: <20200520164642.GA70838@www.zefox.net> <f5c8af7693b90f1aaa8394d7a13f8ac38ee4e6b6.camel@freebsd.org> <20200521022517.GA71947@www.zefox.net> <9E006FD6-493A-43CD-B242-47E00BBDFF6A@yahoo.com> <20200523052439.GB78879@www.zefox.net> <E1F49E99-592C-4A65-8981-5CA7BC9083CB@yahoo.com> <20200523224611.GA80843@www.zefox.net> <17328C3E-730A-4199-899F-01D3D8060BC1@yahoo.com> <20200524015747.GA81498@www.zefox.net> <EE6335D3-E53E-47E4-A6A6-C63593E6F4A5@yahoo.com>
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On 2020-May-23, at 20:18, Mark Millard <marklmi at yahoo.com> wrote: > On 2020-May-23, at 18:57, bob prohaska <fbsd at www.zefox.net> wrote: >=20 >> On Sat, May 23, 2020 at 06:20:13PM -0700, Mark Millard wrote: >>>=20 >>> Unfortunately (until there is an MFC of the relevant >>> change from head that makes things work), man scfb >>> reports that you have no control because the >>> information is ignored: >>>=20 >>> For this driver it is not required to specify modes in the = Screen >>> section of the configuration file. The scfb driver picks up = the >>> currently used video mode from the framebuffer driver and uses = it. >>> Video modes specifications in the configuration file are = ignored. Note, that was about things failing via: [253234.578] (II) scfb(0): Using: depth (24), width (1920), height = (1200) [253234.578] (EE) scfb(0): Specified fbbpp (24) is not a permitted value [253234.579] (II) UnloadModule: "scfb" Well, an MFC to stable/12 has been done for the issue: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D235363 --- Comment #15 from commit-hook@freebsd.org --- A commit references this bug: Author: gonzo Date: Mon Jun 8 00:20:16 UTC 2020 New revision: 361899 URL: https://svnweb.freebsd.org/changeset/base/361899 Log: MFC r352028: [rpi] Inherit framebuffer BPP value from the VideoCore firmware Instead of using hardcoded bpp of 24, obtain current/configured value from VideoCore. This solves certain problems with Xorg/Qt apps that require bpp of 32 to work properly. The mode can be forced by setting framebuffer_depth value in config.txt PR: 235363 Submitted by: Steve Peurifoy <ssw01@mathistry.net> Tested by: Johnathan Chen <jonc@chen.org.nz> (stabe/12 patch) Changes: _U stable/12/ stable/12/sys/arm/broadcom/bcm2835/bcm2835_fbd.c stable/12/sys/arm/broadcom/bcm2835/bcm2835_mbox.c =3D=3D=3D Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar)
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