[Solved] Upgrading piCore 13 to run on Raspberry Pi 5

Tiny Core Base > Raspberry Pi

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Rabie:
I’m still having an issue with the following configuration on pi5:
Sometimes the Xorg server starts perfectly fine, and other times it fails with failed in waitforX and doesn't start, but if i started it manually then it starts.

How can I make sure X always starts reliably after booting?

/etc/X11/xorg.conf:

--- Code: ---Section "Device"
Identifier "RPi5 VC4"
Driver "modesetting"
Option "kmsdev" "/dev/dri/card1"
EndSection

Section "Device"
Identifier "RPi5 VC4"
Driver "modesetting"
Option "kmsdev" "/dev/dri/card0"
EndSection

Section "Screen"
Identifier "Default Screen"
Device "RPi5 VC4"
EndSection

--- End code ---

ls -al /dev/dri/:

--- Code: ---total 0
drwxr-xr-x 3 root root 0 Jan 1 02:01 ./
drwxrwxr-x 16 root root 0 Jan 1 02:01 ../
drwxr-xr-x 2 root root 0 Jan 1 02:01 by-path/
crw-rw---- 1 root staff 226, 0 Jan 1 02:01 card0
crw-rw---- 1 root staff 226, 1 Jan 1 02:01 card1
crw-rw---- 1 root staff 226, 128 Jan 1 02:01 renderD128

--- End code ---

ls -al /dev/dri/by-path/:

--- Code: ---total 0
drwxr-xr-x 2 root root 0 Jan 1 02:01 ./
drwxr-xr-x 3 root root 0 Jan 1 02:01 ../
lrwxrwxrwx 1 root root 8 Jan 1 02:01 platform-display-controller-card -> ../card1

--- End code ---

cat /var/log/Xorg.0.log:

--- Code: ---[ 9.128]
X.Org X Server 1.21.1.13
X Protocol Version 11, Revision 0
[ 9.128] Current Operating System: Linux PiPy-88A29E30ADA1 6.12.25-piCore-v8 #5 SMP PREEMPT Sat Apr 26 13:42:06 EDT 2025 aarch64
[ 9.128] Kernel command line: reboot=w coherent_pool=1M 8250.nr_uarts=1 pci=pcie_bus_safe cgroup_disable=memory numa_policy=interleave numa=fake=8 system_heap.max_order=0 smsc95xx.macaddr=88:A2:9E:30:AD:A1 vc_mem.mem_base=0x3fc00000 vc_mem.mem_size=0x40000000 dwc_otg.fiq_fsm_mask=0xF dwc_otg.lpm_enable=0 console=/dev/null root=/dev/ram0 rootwait quiet nortc loglevel=3 noembed lang=de_DE.UTF-8 kmap=de tz=utc-2 waitusb=5 logo.nologo=1 vga=795
[ 9.128]
[ 9.128] Current version of pixman: 0.42.2
[ 9.128] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[ 9.128] Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 9.128] (==) Log file: "/var/log/Xorg.0.log", Time: Thu Jan 1 01:21:01 1970
[ 9.128] (==) Using config file: "/etc/X11/xorg.conf"
[ 9.128] (==) Using config directory: "/etc/X11/xorg.conf.d"
[ 9.128] (==) Using system config directory "/usr/local/share/X11/xorg.conf.d"
[ 9.129] (==) No Layout section. Using the first Screen section.
[ 9.129] (**) |-->Screen "Default Screen" (0)
[ 9.129] (**) | |-->Monitor "<default monitor>"
[ 9.129] (**) | |-->Device "RPi5 VC4"
[ 9.129] (**) | |-->GPUDevice "RPi5 VC4"
[ 9.129] (==) No monitor specified for screen "Default Screen".
Using a default monitor configuration.
[ 9.129] (**) Allowing byte-swapped clients
[ 9.129] (==) Automatically adding devices
[ 9.129] (==) Automatically enabling devices
[ 9.129] (==) Automatically adding GPU devices
[ 9.129] (==) Automatically binding GPU devices
[ 9.129] (==) Max clients allowed: 256, resource mask: 0x1fffff
[ 9.129] (WW) The directory "/usr/local/lib/X11/fonts/OTF" does not exist.
[ 9.129] Entry deleted from font path.
[ 9.129] (WW) The directory "/usr/local/lib/X11/fonts/100pdi" does not exist.
[ 9.129] Entry deleted from font path.
[ 9.129] (==) FontPath set to:
/usr/local/lib/X11/fonts/misc,
/usr/local/lib/X11/fonts/TTF,
/usr/local/lib/X11/fonts/Type1,
/usr/local/lib/X11/fonts/75dpi
[ 9.129] (==) ModulePath set to "/usr/local/lib/xorg/modules"
[ 9.129] (II) The server relies on udev to provide the list of input devices.
If no devices become available, reconfigure udev or disable AutoAddDevices.
[ 9.129] (II) Module ABI versions:
[ 9.129] X.Org ANSI C Emulation: 0.4
[ 9.129] X.Org Video Driver: 25.2
[ 9.129] X.Org XInput driver : 24.4
[ 9.129] X.Org Server Extension : 10.0
[ 9.129] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 9.129] (II) Platform probe for /sys/devices/platform/axi/1002000000.v3d/drm/card0
[ 9.129] (II) no primary bus or device found
[ 9.129] falling back to /sys/devices/platform/axi/1002000000.v3d/drm/card0
[ 9.129] (II) LoadModule: "glx"
[ 9.130] (II) Loading /usr/local/lib/xorg/modules/extensions/libglx.so
[ 9.509] (II) Module glx: vendor="X.Org Foundation"
[ 9.509] compiled for 1.21.1.13, module version = 1.0.0
[ 9.509] ABI class: X.Org Server Extension, version 10.0
[ 9.509] (II) LoadModule: "modesetting"
[ 9.509] (II) Loading /usr/local/lib/xorg/modules/drivers/modesetting_drv.so
[ 9.510] (II) Module modesetting: vendor="X.Org Foundation"
[ 9.510] compiled for 1.21.1.13, module version = 1.21.1
[ 9.510] Module class: X.Org Video Driver
[ 9.510] ABI class: X.Org Video Driver, version 25.2
[ 9.511] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[ 9.511] (--) using VT number 2

[ 9.511] (WW) Falling back to old probe method for modesetting
[ 9.511] (EE) open /dev/dri/card1: No such file or directory
[ 9.511] (WW) Falling back to old probe method for modesetting
[ 9.511] (EE) open /dev/dri/card1: No such file or directory
[ 9.511] (EE) No devices detected.
[ 9.511] (EE)
Fatal server error:
[ 9.511] (EE) no screens found(EE)
[ 9.511] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[ 9.511] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 9.511] (EE)
[ 9.511] (EE) Server terminated with error (1). Closing log file.
--- End code ---

and if i just use
--- Code: ---Option "kmsdev" "platform-display-controller-card"
--- End code ---
it dosn't work also.

also i noticed if i put a sleep 5 in .profile just before startx, then X has enough time to start.
is that the only way to solve this?

cat .profile | tail -c 100

--- Code: ---/sysconfig/Xserver ] ||
[ -f /etc/sysconfig/text ] ||
[ -e /tmp/.X11-unix/X0 ] ||
sleep 5
startx
)

)

--- End code ---

patrikg:
As always with the PiCore, have you tried to do the same on RasberryPi OS ?
And get that working and then just "Pick the raisins out of the cake" from that OS, transfer that knowledge to picore.

By doing some investigation by some commands to see how it is setup/configured.
And then go back to the non bloated OS like picore.

Rabie:

--- Quote from: patrikg on October 10, 2025, 04:33:10 AM ---As always with the PiCore, have you tried to do the same on RasberryPi OS ?
And get that working and then just "Pick the raisins out of the cake" from that OS, transfer that knowledge to picore.

By doing some investigation by some commands to see how it is setup/configured.

--- End quote ---

no i didn't yet

Rich:
Hi Rabie

--- Quote from: Rabie on October 10, 2025, 04:20:35 AM --- ... Sometimes the Xorg server starts perfectly fine, and other times it fails with failed in waitforX and doesn't start, but if i started it manually then it starts.

How can I make sure X always starts reliably after booting? ...
--- End quote ---
I have a machine that does the same thing. The issue was X was trying
to start before /dev/dri/card0 was detected. I added this to .xsession:

--- Code: ---Timeout=0
# Wait for the video card to be detected so that
# Xorg can find it.
echo -e "$(date +"%s")\tTimeout=$(calc .25*$Timeout) Secs" > XorgStatus.txt
while [ $Timeout -lt 40 ]
do
[ -e /dev/dri/card0 ] && break
Timeout=$(($Timeout + 1))
sleep 0.25
echo -e "$(date +"%s")\tTimeout=$(calc .25*$Timeout) Secs" >> XorgStatus.txt
done
--- End code ---
It loops testing for the video card 4 times per second with a 10 second
time out if the card doesn't show up. My card typically shows up in 4 seconds.
Based on your Xorg.0.log, you should probably be testing for /dev/dri/card1.

Rabie:
Hi Rich,

wow this ist perfect! i just rebooted the device 4 times in arrow and not once did it fail to start X.

Thank you very much!

now this topic is solved :)

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