Splitted screen on iMac 2009

Steffen

Steffen

Hi!

I installed FreeBSD 13-RELEASE minimal on an iMac 2009 without any problems.

After that I tried to setup i3:

pkg install xorg-server xinit xf86-input-keyboard xf86-input-mouse
pkg install i3-gaps i3lock i3status
pkg install xorg-drivers
pkg install terminology zsh sudo chromium tmux gnupg pinentry-curses mutt

setting
Code: 
 echo 'sem_load="YES"' >> /boot/loader.conf
echo 'linux_load="YES"' >> /boot/loader.conf

and added to /etc/rc.conf this two lines
Code: 
hald_enable="YES"
dbus_enable="YES"

and set this in /etc/sysctl.conf
Code: 
 kern.ipc.shm_allow_removed=1

The Mac has a Radeon HD4670 and following https://wiki.freebsd.org/Graphics/AMD-GPU-Matrix I have to use radeonkms.

Therefore I installed drm-kmod

pkg install drm-kmod

and set hw.syscons.disable=1 in /boot/loader.conf following https://wiki.freebsd.org/Graphics

I have not customized xconfig files nor did a Xorg -configure

I added /usr/local/bin/i3 to ~/.xinitrc and started with startx
Problem:

The screen is split in 4 smaller screens with the same content, i.e. it is mirrored.

I guess there is a problem with modesetting, but I have no solution.

Can you point me into the right direction?

Thanks,

Steffen
 
Did you enable the radeon driver provided by graphics/drm-fbsd13-kmod (graphics/drm-kmod) to load automatic on boot in /etc/rc.conf?
Code: 
kld_list="radeonkms"
(Without reboot: kldload /boot/modules/radeonkms)

And have you added the users to the video group as described in https://wiki.freebsd.org/Graphics#AMD_Graphics?

You can try without hw.syscons.disable=1, it might not be necessary anymore:
github.com

Finally Fixing The AMD EFIFB Conflict · Issue #60 · freebsd/drm-kmod

This years old issue FreeBSDDesktop/DEPRECATED-freebsd-base-graphics#170 that required hw.syscons.disable on some systems. I know the answer now. So, amdgpu actually kicks the system (EFI) framebuf...
github.com github.com
 
I removed the three entries not needed, the missing exec was just missing here, not in xinitrc.

However, I think I was a bit unclear: the problem with the four screens (on one hardware screen) occures without X, too.

For example:

I boot without radeonkms loaded, just the framebuffer. When I do a kldload radeonkms, screen splits and is unusable.
 
T-Daemon said:
Did you enable the radeon driver provided by graphics/drm-fbsd13-kmod (graphics/drm-kmod) to load automatic on boot in /etc/rc.conf?
Code: 
kld_list="radeonkms"
(Without reboot: kldload /boot/modules/radeonkms)

And have you added the users to the video group as described in https://wiki.freebsd.org/Graphics#AMD_Graphics?

You can try without hw.syscons.disable=1, it might not be necessary anymore.
Click to expand...

Sorry, race condition without quoting (my fault), answering to SirDice.

Yes, I loaded the module, removed the entry and my user is in group video.
 
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