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Progman3K
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Joined: 03 Jan 2004
Posts: 783
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 Posted: Thu Sep 29, 2022 2:22 pm Post subject: 64-bit Raspberry Pi 4 - Xorg [SOLVED] |
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Hi,
I'm trying to get X working, and in contrast to 32-bit Raspberry Pi 4, in which getting X to work was easy, for some reason for the same hardware running 64 bit software, X doesn't seem to be as easy to set up.
Linux localhost 5.15.32-v8 #1 SMP PREEMPT Tue Sep 27 13:26:30 EDT 2022 aarch64 GNU/Linux
eselect profile list
Available profile symlink targets:
[4] default/linux/arm64/17.0/desktop (stable) *
After some research, it seems that the proper X driver for this platform would be the framebuffer driver, however, even after setting the proper variable in
/etc/portage/make.conf
COMMON_FLAGS="-O2 -pipe"
CFLAGS="${COMMON_FLAGS}"
CXXFLAGS="${COMMON_FLAGS}"
FCFLAGS="${COMMON_FLAGS}"
FFLAGS="${COMMON_FLAGS}"
CHOST="aarch64-unknown-linux-gnu"
LC_MESSAGES=C
ACCEPT_LICENSE="*"
VIDEO_CARDS="fbdev"
Attempting to install the X drivers module doesn't permit building the fbdev driver.
emerge -vDa xorg-drivers
[ebuild R ] x11-base/xorg-drivers-21.1-r1::gentoo INPUT_DEVICES="libinput (-elographics) -evdev (-joystick) (-synaptics) (-vmmouse) (-void) (-wacom)" VIDEO_CARDS="(-amdgpu) (-ast) (-dummy) (-fbdev) -freedreno (-geode) (-i915) (-intel) (-mga) (-nouveau) (-nv) (-nvidia) (-omap) (-qxl) (-r128) (-radeon) (-radeonsi) (-siliconmotion) -tegra -vc4 (-vesa) (-via) (-virtualbox) (-vmware)" 0 KiB
I've checked and for the selected profile, the X, elogind, and dbus USE variables are already set.
What is the proper configuration?
Thanks in advance
Last edited by Progman3K on Sun Oct 02, 2022 7:49 pm; edited 1 time in total |
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pingtoo
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Joined: 10 Sep 2021
Posts: 1248
Location: Richmond Hill, Canada
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| Posted: Thu Sep 29, 2022 2:42 pm Post subject: |
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Since you are using RPI 4, you can set VIDEO_CARDS="vc4 v3d"
your /boot/config.txt should have a line like | Code: | | dtoverlay=vc4-fkms-v3d |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54578
Location: 56N 3W
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| Posted: Thu Sep 29, 2022 4:10 pm Post subject: |
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Progman3K,
What pingtoo said plus a few warts.
Xorg will use the modeset driver.
In addition, you need a few knobs in /dev
| Code: | $ ls /dev/rpivid-*
/dev/rpivid-h264mem /dev/rpivid-hevcmem /dev/rpivid-intcmem /dev/rpivid-vp9mem |
but ...
To get those entries in /dev config.txt needs enough RAM for the GPU to do its thing. I have
fbdev used to work too. That's a low value of 'work' as the CPU plots every pixel.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 54578
Location: 56N 3W
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| Posted: Thu Sep 29, 2022 4:11 pm Post subject: |
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Moved from Desktop Environments to Gentoo on ARM.
as its one of these.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
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pingtoo
Veteran
Joined: 10 Sep 2021
Posts: 1248
Location: Richmond Hill, Canada
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| Posted: Thu Sep 29, 2022 5:35 pm Post subject: |
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NeddySeagoon,
what are /dev/rpivid* for?
My setting, | Code: | me@pi-3 ~ $ grep gpu_mem /boot/config.txt
gpu_mem=16
me@pi-3 ~ $ ls -l /dev/rpi*
crw-rw---- 1 root video 239, 0 Dec 31 1969 /dev/rpivid-h264mem
crw-rw---- 1 root video 241, 0 Dec 31 1969 /dev/rpivid-hevcmem
crw-rw---- 1 root video 240, 0 Dec 31 1969 /dev/rpivid-intcmem
crw-rw---- 1 root video 238, 0 Dec 31 1969 /dev/rpivid-vp9mem
me@pi-3 ~ $ uname -a
Linux pi-3.home 5.10.11-v8-p4 #1 SMP PREEMPT Tue Apr 27 18:58:07 -00 2021 aarch64 GNU/Linux |
So since my gpu_mem is only 16 does it mean those /dev/rpivid* will not function? |
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 54578
Location: 56N 3W
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| Posted: Thu Sep 29, 2022 6:04 pm Post subject: |
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pingtoo,
I need to poke about a bit more. I had gpu=16 and had to increase it to 256 to get hardware acceleration to work.
My full /dev is
| Code: | Pi4_~arm64 ~ $ ls /dev
ashmem dm-7 loop2 ppp random tty10 tty28 tty45 tty62 vcs2 vcsa8 vhost-vsock
autofs dm-8 loop3 ptmx raw tty11 tty29 tty46 tty63 vcs3 vcsa9 video10
block dm-9 loop4 pts rfkill tty12 tty3 tty47 tty7 vcs4 vcsm-cma video11
bsg dma_heap loop5 ram0 rpivid-h264mem tty13 tty30 tty48 tty8 vcs5 vcsu video12
btrfs-control dri loop6 ram1 rpivid-hevcmem tty14 tty31 tty49 tty9 vcs6 vcsu1 video13
bus fd loop7 ram10 rpivid-intcmem tty15 tty32 tty5 ttyAMA0 vcs7 vcsu10 video14
cachefiles full loop-control ram11 rpivid-vp9mem tty16 tty33 tty50 ttyprintk vcs8 vcsu11 video15
char fuse mapper ram12 sda tty17 tty34 tty51 uhid vcs9 vcsu12 video16
console gpiochip0 media0 ram13 sda1 tty18 tty35 tty52 uinput vcsa vcsu2 video18
cpu_dma_latency gpiochip1 media1 ram14 sda2 tty19 tty36 tty53 urandom vcsa1 vcsu3 video20
cuse gpiomem media2 ram15 sda3 tty2 tty37 tty54 v4l vcsa10 vcsu4 video21
disk gpmctl mem ram2 shm tty20 tty38 tty55 vchiq vcsa11 vcsu5 video22
dm-0 hwrng mmcblk0 ram3 snd tty21 tty39 tty56 vcio vcsa12 vcsu6 video23
dm-1 input mmcblk0p1 ram4 stderr tty22 tty4 tty57 vc-mem vcsa2 vcsu7 watchdog
dm-2 kmsg mqueue ram5 stdin tty23 tty40 tty58 vcs vcsa3 vcsu8 watchdog0
dm-3 kvm net ram6 stdout tty24 tty41 tty59 vcs1 vcsa4 vcsu9 zero
dm-4 log null ram7 tty tty25 tty42 tty6 vcs10 vcsa5 vga_arbiter
dm-5 loop0 Pi3_64 ram8 tty0 tty26 tty43 tty60 vcs11 vcsa6 vhci
dm-6 loop1 port ram9 tty1 tty27 tty44 tty61 vcs12 vcsa7 vhost-net |
Maybe I am remembering the wrong /dev nodes?
Eww my Pi is still on Xorg 1.20. Its badly in need of an update.
_________________
Regards,
NeddySeagoon
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pingtoo
Veteran
Joined: 10 Sep 2021
Posts: 1248
Location: Richmond Hill, Canada
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| Posted: Thu Sep 29, 2022 6:15 pm Post subject: |
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NeddySeagoon,
How to know if my system have hardware acceleration or not? Is there a line or two in Xorg.0.log that indicate hardware acceleration turn on?
I am also on xserver 1.20 | Code: | X.Org X Server 1.20.13
X Protocol Version 11, Revision 0
[ 36.123] Build Operating System: Linux 5.10.60 aarch64 Gentoo
[ 36.123] Current Operating System: Linux pi-3.home 5.10.11-v8-p4 #1 SMP PREEMPT Tue Apr 27 18:58:07 -00 2021 aarch64
[ 36.123] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 video=HDMI-A-
1:1920x1080M@60 video=HDMI-A-2:1920x1080M@60 smsc95xx.macaddr=DC:A6:32:6D:16:7B vc_mem.mem_base=0x3f000000 vc_mem.mem_size=0x3f600000 usb-
storage.quirks=125f:a67a:u console=ttyS0,115200 console=tty1 dwc_otg.lpm_enable=0 root=PARTUUID=67e6ea33-02 rootfstype=btrfs fsck.repair=no
usbhid.mousepoll=0 rootwait=10 init=/sbin/init
[ 36.123] Build Date: 12 January 2022 05:43:33PM
[ 36.124]
[ 36.124] Current version of pixman: 0.40.0
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Progman3K
l33t
Joined: 03 Jan 2004
Posts: 783
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| Posted: Sun Oct 02, 2022 8:06 pm Post subject: |
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pingtoo, neddy,
Thanks! X is working now.
For comparison, I am running package xorg-server-21.1.4
Which is reported in
~/.local/share/xorg/Xorg.0.log
as
X.Org X Server 1.21.1.4
X Protocol Version 11, Revision 0
Full disclosure, I have two rpi units; an rpi 3, and an rpi 4
Both units:
Linux localhost 5.15.32-v8 #1 SMP PREEMPT Tue Sep 27 13:26:30 EDT 2022 aarch64 GNU/Linux
Using the tips you both have provided, both units have functioning X.
Only the rpi4 unit has the /dev/rpivid-h264mem, /dev/rpivid-hevcmem, /dev/rpivid-intcmem and /dev/rpivid-vp9mem nodes.
Oddly though, this doesn't seem to hinder the rpi3's X from being operational.
One thing I did note, and the problem showed up on both units: After installing Windowmaker (call me an old retro user), even though the desktop environment did start and all its bells & whistles seemed to be functional, it could not run
wmsystemtray, which is a system-tray specifically written FOR Windowmaker.
I was getting the same error on both devices where starting wmsystemtray from an xterm inside Windowmaker would report that it could not find the proper font.
The problem was easily solved by running the following commands (as root) and then rebooting:
mkfontdir
mkfontscale
Invoking both commands produced no output in the terminal, but as related above, did solve the problem.
My theory is that the sum of installing X and Windowmaker somehow doesn't perform this necessary initialization step. |
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 54578
Location: 56N 3W
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| Posted: Mon Oct 03, 2022 8:20 am Post subject: |
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Progman3K.
Up until the Pi4, all the Pis used the vc4 GPU. The Pi4 uses the vc6 and does things differently. Both use modesetting in Xorg but mesa has different options for the Pi3 and Pi4.
You can build both, so that the build can run on both.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
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Gentoo on ARM
