Re: OldWorld ROM Macintoshes
On Mon, 2025-09-08 at 21:15 -0600, Stan Johnson wrote:
> On 9/8/25 6:45 PM, Cedar Maxwell wrote:
> > On Sun, 2025-09-07 at 13:16 -0600, Stan Johnson wrote:
> > > On 9/5/25 6:27 PM, Cedar Maxwell wrote:
> > > > ...
> > > >
> > > > Would you send your xorg.conf, etc., please? I can only seem
> > > > to
> > > > get
> > > > Xorg to launch by passing in video=ofonly. I can't get it to
> > > > work
> > > > with
> > > > fbdev either.
> > > > ...
> > >
> > >
> > > I've been testing kernels on my Wallstreet using a current Gentoo
> > > distribution.
> > >
> > > I noticed this morning that mainline kernel v6.1, compiled using
> > > the
> > > attached .config file, works in Gentoo, but not in Debian SID.
> > >
> > > In Debian, I can see the X11 login screen, but the keyboard and
> > > mouse
> > > don't respond. In Gentoo, everything works as expected.
> > >
> > > In Debian SID, I'm using Xfce, sysvinit-core instead of systemd,
> > > and
> > > wdm
> > > instead of lightdm.
> > >
> > > In Gentoo, I noticed elogind was installed; elogind was not
> > > installed
> > > in
> > > Debian. Using "apt-get install elogind" to install elogind,
> > > systemd
> > > was
> > > removed, as well as xserver-org and some X11-related files, so of
> > > course
> > > X11 doesn't work at all now, and I'll need to restore from a
> > > backup.
> > > Interestingly, I'm not having similar issues with PB Lombard or
> > > Pismo.
> > >
> > > My BootX configuration is as follows (working X11 in 6.1.0 in
> > > Gentoo):
> > > Kernel: vmlinux-6.1.0-pmac (custom kernel, no modules)
> > > Boot Device: /dev/sda13 (Gentoo partition)
> > > More kernel arguments:
> > > video=atyfb:vmode:14,cmode:32,mclk:71
> > > No video driver: checked
> > > Options:
> > > Force SCSI ON: checked
> > > Force video settings: checked
> > > Use specified RAM disk: not checked
> >
> > Checking "No video driver" appears to pass in video=ofonly. How is
> > your performance with this configuration? Mine is borderline
> > unusable.
> > mclk:71 makes everything green.
>
> As a test, I installed the latest Debian SID on a Pismo, so I get
> systemd and all of the badness that it has for slow, memory-
> constrained
> systems (my Pismo has 512 MiB memory).
>
> Interestingly, I don't pass "video=aty128fs:1024x768" to the kernel
> (via
> yaboot) as I have in the past, yet it still works, though about twice
> as
> slowly as using sysvinit (or rcinit in Gentoo). So I guess it must be
> using "video=ofonly".
In your Xorg.log it should say which "video=" option you are using.
>
> My intention is to copy my Debian SID and Gentoo root filesystems
> from
> my Pismo to my Wallstreet, but to do this I need to have at least
> dump
> version 0.4b49 to reliably dump and restore filesystems on powerpc.
> So
> I'm having to update Gentoo now on Pismo to update dump.
>
> # dump --version
> ...
> dump 0.4b47 ...
>
> I think checking "No video driver" but also specifying
> "video=atyfb..."
> will pass "video=atyfb..." to the kernel. Unfortunately, a kernel
> regression seems to have broken previously working X11 on the
> Wallstreet
> (I haven't heard back from the developer yet).
Maybe you or I bump the email to that developer on Friday? 7 days
seems like a reasonable window to expect a response.
> I tried installing Debian
> SID 08/29/2025 directly on the Wallstreet by booting into the
> installtion vmlinux and initrd.gz, but I couldn't get it to work,
> even
> using a serial console. If my tests are accurate, the Wallstreet
> should
> eventually work with the Debian rootfs that I installed on my Pismo
> (except for X11).
Same experience here, though I don't have any adapters to test out the
WallStreet's serial (GeoPort?). Is Linux actually capable of
outputting serial data via this? Are you using a Mini-DIN-9 to DB-9
adapter? Just want to confirm before I buy anything.
>
> On the Pismo, I had to install wdm and specify it as my display
> manager
> instead of lightdm in Debian SID 08/29/2025, otherwise I would only
> get
> a text login. It also took me a while to install everything that's
> useful that Debian doesn't include, such as telnet, telnetd, ftp,
> vsftpd, ifconfig, netstat, dump, etc. For now I'm leaving systemd
> installed in Debian on the Pismo and running Debian's default kernel
> and
> initrd (vmlinux-6.16.3+deb14-powerpc and
> initrd.img-6.16.3+deb14-powerpc). I'll replace systemd with sysvinit
> and
> try a custom kernel after I copy the Debian rootfs to the Wallstreet.
>
> On the Pismo, X11 in Gentoo (with just a clock and two xterms
> running)
> is mostly usable and about twice as fast as using Xfce in Debian SID.
> The same setup is also usable (but just barely) in Gentoo on the
> Wallstreet, with kernel 6.1.
>
I tried xdm, wdm, lightdm, sddm, lxdm, none work. Xorg always
complains "No screens found".
Xorg.log with no xorg conf files:
[ 155.890]
X.Org X Server 1.21.1.18
X Protocol Version 11, Revision 0
[ 155.892] Current Operating System: Linux wallstreet 6.1.0-9-powerpc
#1 Debian 6.1.27-1 (2023-05-08) ppc
[ 155.892] Kernel command line: ramdisk_size=8192 root=/dev/sda8
video=atyfb:vmode:14:cmode:32
[ 155.893] xorg-server 2:21.1.18-2 (https://www.debian.org/support)
[ 155.893] Current version of pixman: 0.44.0
[ 155.894] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[ 155.894] Markers: (--) probed, (**) from config file, (==) default
setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 155.897] (==) Log file: "/var/log/Xorg.0.log", Time: Sat Sep 6
19:43:03 2025
[ 155.906] (==) Using system config directory
"/usr/share/X11/xorg.conf.d"
[ 155.920] (==) No Layout section. Using the first Screen section.
[ 155.921] (==) No screen section available. Using defaults.
[ 155.921] (**) |-->Screen "Default Screen Section" (0)
[ 155.921] (**) | |-->Monitor "<default monitor>"
[ 155.925] (==) No monitor specified for screen "Default Screen
Section".
Using a default monitor configuration.
[ 155.925] (**) Allowing byte-swapped clients
[ 155.926] (==) Automatically adding devices
[ 155.926] (==) Automatically enabling devices
[ 155.926] (==) Automatically adding GPU devices
[ 155.926] (==) Automatically binding GPU devices
[ 155.927] (==) Max clients allowed: 256, resource mask: 0x1fffff
[ 155.963] (WW) The directory "/usr/share/fonts/X11/cyrillic" does
not exist.
[ 155.964] Entry deleted from font path.
[ 155.980] (==) FontPath set to:
/usr/share/fonts/X11/misc,
/usr/share/fonts/X11/100dpi/:unscaled,
/usr/share/fonts/X11/75dpi/:unscaled,
/usr/share/fonts/X11/Type1,
/usr/share/fonts/X11/100dpi,
/usr/share/fonts/X11/75dpi,
built-ins
[ 155.981] (==) ModulePath set to "/usr/lib/xorg/modules"
[ 155.981] (II) The server relies on udev to provide the list of
input devices.
If no devices become available, reconfigure udev or disable
AutoAddDevices.
[ 155.983] (II) Loader magic: 0xb207a8
[ 155.984] (II) Module ABI versions:
[ 155.984] X.Org ANSI C Emulation: 0.4
[ 155.984] X.Org Video Driver: 25.2
[ 155.984] X.Org XInput driver : 24.4
[ 155.984] X.Org Server Extension : 10.0
[ 156.000] (++) using VT number 1
[ 156.039] (II) systemd-logind: took control of session
/org/freedesktop/login1/session/_35
[ 156.061] (--) PCI:*(0@0:17:0) 1002:4c50:0000:0000 rev 220, Mem @
0x82000000/16777216, 0xfd020000/4096, I/O @ 0x00000400/256, BIOS @
0x????????/131072
[ 156.067] (II) LoadModule: "glx"
[ 156.092] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 156.240] (II) Module glx: vendor="X.Org Foundation"
[ 156.241] compiled for 1.21.1.18, module version = 1.0.0
[ 156.241] ABI class: X.Org Server Extension, version 10.0
[ 156.242] (==) Matched ati as autoconfigured driver 0
[ 156.242] (==) Matched modesetting as autoconfigured driver 1
[ 156.242] (==) Matched fbdev as autoconfigured driver 2
[ 156.242] (==) Assigned the driver to the xf86ConfigLayout
[ 156.242] (II) LoadModule: "ati"
[ 156.244] (II) Loading /usr/lib/xorg/modules/drivers/ati_drv.so
[ 156.253] (II) Module ati: vendor="X.Org Foundation"
[ 156.253] compiled for 1.21.1.9, module version = 22.0.0
[ 156.253] Module class: X.Org Video Driver
[ 156.253] ABI class: X.Org Video Driver, version 25.2
[ 156.254] (II) LoadModule: "mach64"
[ 156.255] (II) Loading /usr/lib/xorg/modules/drivers/mach64_drv.so
[ 156.273] (II) Module mach64: vendor="X.Org Foundation"
[ 156.273] compiled for 1.21.1.16, module version = 6.10.0
[ 156.273] Module class: X.Org Video Driver
[ 156.274] ABI class: X.Org Video Driver, version 25.2
[ 156.274] (II) LoadModule: "modesetting"
[ 156.275] (II) Loading
/usr/lib/xorg/modules/drivers/modesetting_drv.so
[ 156.291] (II) Module modesetting: vendor="X.Org Foundation"
[ 156.291] compiled for 1.21.1.18, module version = 1.21.1
[ 156.292] Module class: X.Org Video Driver
[ 156.292] ABI class: X.Org Video Driver, version 25.2
[ 156.292] (II) LoadModule: "fbdev"
[ 156.294] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[ 156.306] (II) Module fbdev: vendor="X.Org Foundation"
[ 156.307] compiled for 1.21.1.3, module version = 0.5.0
[ 156.307] Module class: X.Org Video Driver
[ 156.307] ABI class: X.Org Video Driver, version 25.2
[ 156.308] (II) MACH64: Driver for ATI Mach64 chipsets
[ 156.308] (II) modesetting: Driver for Modesetting Kernel Drivers:
kms
[ 156.308] (II) FBDEV: driver for framebuffer: fbdev
[ 156.311] (WW) Falling back to old probe method for modesetting
[ 156.311] (EE) open /dev/dri/card0: No such file or directory
[ 156.314] (WW) Falling back to old probe method for fbdev
[ 156.314] (II) Loading sub module "fbdevhw"
[ 156.314] (II) LoadModule: "fbdevhw"
[ 156.317] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[ 156.326] (II) Module fbdevhw: vendor="X.Org Foundation"
[ 156.326] compiled for 1.21.1.18, module version = 0.0.2
[ 156.326] ABI class: X.Org Video Driver, version 25.2
[ 156.330] (II) MACH64(0): Creating default Display subsection in
Screen section
"Default Screen Section" for depth/fbbpp 24/32
[ 156.330] (==) MACH64(0): Depth 24, (--) framebuffer bpp 32
[ 156.331] (==) MACH64(0): Using EXA acceleration architecture
[ 156.333] (EE) Unable to map mmio aperture. Invalid argument (22)
[ 156.333] (WW) MACH64: Mach64 in slot 0:17:0 could not be detected!
[ 156.333] (II) UnloadModule: "mach64"
[ 156.334] (EE) Screen(s) found, but none have a usable
configuration.
[ 156.334] (EE)
Fatal server error:
[ 156.334] (EE) no screens found(EE)
[ 156.335] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[ 156.337] (EE) Please also check the log file at
"/var/log/Xorg.0.log" for additional information.
[ 156.338] (EE)
[ 156.407] (EE) Server terminated with error (1). Closing log file.
Tried with this xorg.conf:
Section "Device"
Identifier "Card0"
Driver "fbdev"
Option "fbdev" "/dev/fb0"
Option "ShadowFB" "true"
EndSection
Section "Monitor"
Identifier "Monitor0"
HorizSync 30-70
VertRefresh 50-120
EndSection
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultDepth 16
SubSection "Display"
Depth 16
Modes "1024x768"
EndSubSection
EndSection
Then this is my Xorg.log:
[ 866.823]
X.Org X Server 1.21.1.18
X Protocol Version 11, Revision 0
[ 866.839] Current Operating System: Linux wallstreet 6.1.0-9-powerpc
#1 Debian 6.1.27-1 (2023-05-08) ppc
[ 866.840] Kernel command line: ramdisk_size=8192 root=/dev/sda8
video=atyfb:vmode:14:cmode:16
[ 866.851] xorg-server 2:21.1.18-2 (https://www.debian.org/support)
[ 866.856] Current version of pixman: 0.44.0
[ 866.866] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[ 866.867] Markers: (--) probed, (**) from config file, (==) default
setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 866.890] (==) Log file: "/var/log/Xorg.0.log", Time: Sat Sep 6
20:08:03 2025
[ 866.898] (==) Using config file: "/etc/X11/xorg.conf"
[ 866.903] (==) Using system config directory
"/usr/share/X11/xorg.conf.d"
[ 866.908] (==) ServerLayout "Layout0"
[ 866.909] (**) |-->Screen "Screen0" (0)
[ 866.909] (**) | |-->Monitor "Monitor0"
[ 866.912] (**) | |-->Device "Card0"
[ 866.913] (**) |-->Input Device "Keyboard0"
[ 866.913] (**) |-->Input Device "Mouse0"
[ 866.913] (**) Allowing byte-swapped clients
[ 866.913] (==) Automatically adding devices
[ 866.913] (==) Automatically enabling devices
[ 866.914] (==) Automatically adding GPU devices
[ 866.914] (==) Automatically binding GPU devices
[ 866.914] (==) Max clients allowed: 256, resource mask: 0x1fffff
[ 866.915] (WW) The directory "/usr/share/fonts/X11/cyrillic" does
not exist.
[ 866.915] Entry deleted from font path.
[ 866.915] (==) FontPath set to:
/usr/share/fonts/X11/misc,
/usr/share/fonts/X11/100dpi/:unscaled,
/usr/share/fonts/X11/75dpi/:unscaled,
/usr/share/fonts/X11/Type1,
/usr/share/fonts/X11/100dpi,
/usr/share/fonts/X11/75dpi,
built-ins
[ 866.916] (**) ModulePath set to "/usr/lib/xorg/modules"
[ 866.916] (WW) Hotplugging is on, devices using drivers 'kbd',
'mouse' or 'vmmouse' will be disabled.
[ 866.916] (WW) Disabling Keyboard0
[ 866.916] (WW) Disabling Mouse0
[ 866.916] (II) Loader magic: 0xc307a8
[ 866.917] (II) Module ABI versions:
[ 866.917] X.Org ANSI C Emulation: 0.4
[ 866.917] X.Org Video Driver: 25.2
[ 866.917] X.Org XInput driver : 24.4
[ 866.917] X.Org Server Extension : 10.0
[ 866.933] (++) using VT number 1
[ 866.973] (II) systemd-logind: took control of session
/org/freedesktop/login1/session/_31
[ 866.992] (--) PCI:*(0@0:17:0) 1002:4c50:0000:0000 rev 220, Mem @
0x82000000/16777216, 0xfd020000/4096, I/O @ 0x00000400/256, BIOS @
0x????????/131072
[ 866.993] (II) "glx" will be loaded by default.
[ 866.994] (II) LoadModule: "fbdevhw"
[ 866.997] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[ 867.000] (II) Module fbdevhw: vendor="X.Org Foundation"
[ 867.000] compiled for 1.21.1.18, module version = 0.0.2
[ 867.000] ABI class: X.Org Video Driver, version 25.2
[ 867.001] (II) LoadModule: "dbe"
[ 867.001] (II) Module "dbe" already built-in
[ 867.001] (II) LoadModule: "extmod"
[ 867.001] (II) Module "extmod" already built-in
[ 867.002] (II) LoadModule: "glx"
[ 867.003] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 867.026] (II) Module glx: vendor="X.Org Foundation"
[ 867.027] compiled for 1.21.1.18, module version = 1.0.0
[ 867.028] ABI class: X.Org Server Extension, version 10.0
[ 867.028] (II) LoadModule: "fbdev"
[ 867.030] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[ 867.032] (II) Module fbdev: vendor="X.Org Foundation"
[ 867.032] compiled for 1.21.1.3, module version = 0.5.0
[ 867.033] Module class: X.Org Video Driver
[ 867.033] ABI class: X.Org Video Driver, version 25.2
[ 867.033] (II) FBDEV: driver for framebuffer: fbdev
[ 867.034] (WW) Falling back to old probe method for fbdev
[ 867.035] (II) Loading sub module "fbdevhw"
[ 867.035] (II) LoadModule: "fbdevhw"
[ 867.037] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[ 867.037] (II) Module fbdevhw: vendor="X.Org Foundation"
[ 867.037] compiled for 1.21.1.18, module version = 0.0.2
[ 867.038] ABI class: X.Org Video Driver, version 25.2
[ 867.040] (WW) Falling back to old probe method for fbdev
[ 867.040] (II) Loading sub module "fbdevhw"
[ 867.040] (II) LoadModule: "fbdevhw"
[ 867.042] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[ 867.042] (II) Module fbdevhw: vendor="X.Org Foundation"
[ 867.043] compiled for 1.21.1.18, module version = 0.0.2
[ 867.043] ABI class: X.Org Video Driver, version 25.2
[ 867.044] (EE) No devices detected.
[ 867.045] (EE)
Fatal server error:
[ 867.045] (EE) no screens found(EE)
[ 867.046] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[ 867.046] (EE) Please also check the log file at
"/var/log/Xorg.0.log" for additional information.
[ 867.047] (EE)
[ 867.125] (EE) Server terminated with error (1). Closing log file.
Please advise.
> >
> > >
> > > I'll probably end up using whatever .config file the developer
> > > who
> > > investigates the possible kernel regressions recommends.
> > >
> > > I'm not using an xorg.conf file in either Debian SID or Gentoo (I
> > > haven't needed to use an xorg.conf file since Debian 7.8 in
> > > Sparc64).
> > >
> > > For now I'll be sticking with Gentoo for these particular kernel
> > > regression tests.
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