Date: Sat, 04 Oct 2014 17:31:39 +0200 From: =?windows-1252?Q?Jean-S=E9bastien_P=E9dron?= <dumbbell@FreeBSD.org> To: freebsd-stable@freebsd.org, Nathan Whitehorn <nwhitehorn@freebsd.org> Subject: Re: Removal of legacy X.Org (aka non-WITH_NEW_XORG) [NVIDIA vs. powerpc64 for vt console switching; Radeon X1950 not working for powerpc64 Xorg generally] Message-ID: <543012DB.2040208@FreeBSD.org> In-Reply-To: <2C74DFEC-D943-4237-8988-B9657240EC21@dsl-only.net> References: <2C74DFEC-D943-4237-8988-B9657240EC21@dsl-only.net>
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On 04.10.2014 02:38, Mark Millard wrote:
> NVIDIA 7800 GT in that type of PowerMac G5: Nearly black text on
> black background problems for vt console switching from Xorg/xfce4
> but normal text display for sc...
It looks like the backlight of your screen isn't turned on when
switching to a console window.
Could you please connect from a remote computer to your Power Mac G5 and
run the following command as root?
truss -fd -o truss-$(sysctl -n kern.vty).txt /usr/local/bin/Xorg
Wait a couple seconds and hit Control-C to stop the X server.
Please do this for both vt(4) and syscons. Then post both truss-vt.txt
and truss-sc.txt files to this list. This will help us to determine if
vt(4) lacks an ioctl, compared to syscons.
> For 10.1-BETA3 the boot-time vt console display works for 1920x1200=20
> but not (usefully/readably) for 2560x1440. So the following notes
> are for a 1920x1200 context. (10.1-BETA2 had different behavior and
> was usable for 2560x1440 despite a temporary display oddity during
> booting. But I'm not going down this path here. I'm pointing out a
> different XOrg issue.)
Could you please post pictures of this screen with both -BETA2 and
-BETA3? I'd like to understand this regression on your side.
> My attempt to test a Radeon X1950 in such a PowerMac G5 shows that=20
> XOrg does not get very far:
If you have some time, could you please test my "kms-drm-update-38",
available on GitHut?
https://github.com/dumbbell/freebsd/tree/kms-drm-update-38
Just build a kernel from that checkout (no need to build world). This
branch enables the Radeon kernel module on PowerPC. Then, you can play
with xf86-video-ati (the KMS-only driver). Hopefully, the kernel driver
provides better support for the card.
> My attempt to side step this with use of xf86-video-scfb and a=20
> matching xorg.conf did not work either (note also the 'depth (32)'
> below vs. the 'depth (24)' above, not just the 'Weight given (000)'
> below)
>=20
> [ 321.133] (II) LoadModule: "scfb"
> [ 321.134] (II) Loading /usr/local/lib/xorg/modules/drivers/scfb_drv.=
so
> [ 321.134] (II) Module scfb: vendor=3D"X.Org Foundation"
> [ 321.134] compiled for 1.12.4, module version =3D 0.0.4
> [ 321.134] ABI class: X.Org Video Driver, version 12.1
> [ 321.134] (II) scfb: driver for wsdisplay framebuffer: scfb
> [ 321.154] (--) Using syscons driver with X support (version 85952293=
51.252)
> [ 321.154] (--) using VT number 9
>=20
> [ 321.154] (WW) Falling back to old probe method for scfb
> [ 321.154] scfb trace: probe start
> [ 321.154] (II) scfb(0): using default device
> [ 321.154] scfb trace: probe done
> [ 321.154] (WW) VGA arbiter: cannot open kernel arbiter, no multi-car=
d support
> [ 321.154] scfb: PreInit 0
> [ 321.154] (II) scfb(0): Using: depth (32), width (1920), height=
(1200)
> [ 321.154] (**) scfb(0): Depth 32, (--) framebuffer bpp 32
> [ 321.154] (EE) scfb(0): Weight given (000) is inconsistent with the =
depth (32)
> [ 321.154] (II) UnloadModule: "scfb"
> [ 321.154] (EE) Screen(s) found, but none have a usable configuration=
=2E
> [ 321.154]=20
> Fatal server error:
> [ 321.154] no screens found
Nathan (CC'd), do you have an idea about what's going on here?
--=20
Jean-S=E9bastien P=E9dron
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