patrice colet wrote:
From what I understand about what triggers this bug it's tightvnc that is running twice puredata, some has resolved this by using x11vnc instead
src:
https://www.raspberrypi.org/forums/viewtopic.php?f=66&t=59285
thanks patrice for the helpfull link. it had nothing to do with puredata.
FYI: using x11vnc did indeed work. another method which seems to solve it is to start the headless Pi in CLI mode; then with tightvncserver there's also just 1 instance of puredata running.
rolf
Le 25/08/2016 à 13:39, rolfm@dds.nl a écrit :
hello,
(for me) strange problem of double instances of Pd.
raspbian jessie Pi-3, headless, VNC on laptop.
in /.config/LXEsession/autostart: @lxpanel --profile LXDE-pi @pcmanfm --desktop --profile LXDE-pi @puredata
after boot in Terminal command 'top':
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1105 pi -7 0 12632 5992 5292 S 1.7 0.6 0:00.57 puredata 1106 pi -7 0 12632 6104 5404 S 1.7 0.6 0:00.57 puredata 938 pi 20 0 12544 8224 3428 S 1.0 0.9 0:00.63 Xtightvnc 1399 pi 20 0 5112 2544 2140 R 0.7 0.3 0:00.10 top 903 root 20 0 98104 25936 18128 S 0.3 2.7 0:00.47 Xorg 1100 pi 20 0 94364 24608 20920 S 0.3 2.6 0:00.59 lxpanel 1101 pi 20 0 94188 24776 20972 S 0.3 2.6 0:00.68 lxpanel ......
there are 2 instances of puredata (and also 2 lxpanels)! and only one GUI visible on screen.
when i close the GUI, 1 Pd instance disappears, 1 remains (and a WISH).
without puredata in autostart there's only 1 lxpanel.
anybody experience with this?
is there better way to get Pd automatically started at boot?
rolf
good to know, I was wondering if the problem mainly come from systemd.
Le 28/08/2016 à 12:01, rolfm@dds.nl a écrit :
patrice colet wrote:
From what I understand about what triggers this bug it's tightvnc that is running twice puredata, some has resolved this by using x11vnc instead
src:
https://www.raspberrypi.org/forums/viewtopic.php?f=66&t=59285
thanks patrice for the helpfull link. it had nothing to do with puredata.
FYI: using x11vnc did indeed work. another method which seems to solve it is to start the headless Pi in CLI mode; then with tightvncserver there's also just 1 instance of puredata running.
rolf
Le 25/08/2016 à 13:39, rolfm@dds.nl a écrit :
hello,
(for me) strange problem of double instances of Pd.
raspbian jessie Pi-3, headless, VNC on laptop.
in /.config/LXEsession/autostart: @lxpanel --profile LXDE-pi @pcmanfm --desktop --profile LXDE-pi @puredata
after boot in Terminal command 'top':
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1105 pi -7 0 12632 5992 5292 S 1.7 0.6 0:00.57 puredata 1106 pi -7 0 12632 6104 5404 S 1.7 0.6 0:00.57 puredata 938 pi 20 0 12544 8224 3428 S 1.0 0.9 0:00.63 Xtightvnc 1399 pi 20 0 5112 2544 2140 R 0.7 0.3 0:00.10 top 903 root 20 0 98104 25936 18128 S 0.3 2.7 0:00.47 Xorg 1100 pi 20 0 94364 24608 20920 S 0.3 2.6 0:00.59 lxpanel 1101 pi 20 0 94188 24776 20972 S 0.3 2.6 0:00.68 lxpanel ......
there are 2 instances of puredata (and also 2 lxpanels)! and only one GUI visible on screen.
when i close the GUI, 1 Pd instance disappears, 1 remains (and a WISH).
without puredata in autostart there's only 1 lxpanel.
anybody experience with this?
is there better way to get Pd automatically started at boot?
rolf
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list
On Mon, 2016-08-29 at 19:37 +0200, patrice colet wrote:
good to know, I was wondering if the problem mainly come from systemd.
I believe when you start tightvncserver, you're actually starting a second desktop session (on a different DISPLAY). That means, when you use the auto start infrastructure from your DE (desktop environment)for auto-starting Pd, it is started twice, because you're running two desktop sessions, one on DISPLAY=:0 (Raspbian is pre-configured to auto-login at start) and the one started from tightvncserver.
x11vnc doesn't start another session, but captures the already running session on DISPLAY=:0. That's why you don't see two instances of Pd, when running x11vnc.
Alternatively, you could disable auto-login, so that in the session on DISPLAY=:0 nothing gets auto-started (unless user 'pi' logs in). But that also means, you need to login into your tightvncserver session.
Alternatively, you could also start your Pd by cron (which is not attached to any desktop session and thus starts things only once). If you don't need a Pd GUI, that is probably the easiest solution. If you need a Pd GUI, you need to tell Pd in which DISPLAY to show the GUI, since cron doesn't have any notion of desktop sessions. This is what I sometimes do to auto-start Pd with GUI in it's own session:
Run 'crontab -e' to edit current user's crontab file. Then add a line like: @reboot /usr/bin/vncserver :4 -name pure-data -geometry 1000x800 -dpi 80; sleep 5; DISPLAY=:4 /usr/bin/pd -open mypatch.pd
save it and reboot. At next boot, this will launch a vncserver on DISPLAY :4 and then start Pd with its GUI in said vnc session.
Roman
Le 28/08/2016 à 12:01, rolfm@dds.nl a écrit :
patrice colet wrote:
From what I understand about what triggers this bug it's tightvnc that is running twice puredata, some has resolved this by using x11vnc instead
src:
https://www.raspberrypi.org/forums/viewtopic.php?f=66&t=59285
thanks patrice for the helpfull link. it had nothing to do with puredata.
FYI: using x11vnc did indeed work. another method which seems to solve it is to start the headless Pi in CLI mode; then with tightvncserver there's also just 1 instance of puredata running.
rolf
Le 25/08/2016 à 13:39, rolfm@dds.nl a écrit :
hello,
(for me) strange problem of double instances of Pd.
raspbian jessie Pi-3, headless, VNC on laptop.
in /.config/LXEsession/autostart: @lxpanel --profile LXDE-pi @pcmanfm --desktop --profile LXDE-pi @puredata
after boot in Terminal command 'top':
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1105 pi -7 0 12632 5992 5292 S 1.7 0.6 0:00.57 puredata 1106 pi -7 0 12632 6104 5404 S 1.7 0.6 0:00.57 puredata 938 pi 20 0 12544 8224 3428 S 1.0 0.9 0:00.63 Xtightvnc 1399 pi 20 0 5112 2544 2140 R 0.7 0.3 0:00.10 top 903 root 20 0 98104 25936 18128 S 0.3 2.7 0:00.47 Xorg 1100 pi 20 0 94364 24608 20920 S 0.3 2.6 0:00.59 lxpanel 1101 pi 20 0 94188 24776 20972 S 0.3 2.6 0:00.68 lxpanel ......
there are 2 instances of puredata (and also 2 lxpanels)! and only one GUI visible on screen.
when i close the GUI, 1 Pd instance disappears, 1 remains (and a WISH).
without puredata in autostart there's only 1 lxpanel.
anybody experience with this?
is there better way to get Pd automatically started at boot?
rolf
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list
That's what I believe too, thanks for the detailed explanation and crontab trick.
Le 29/08/2016 à 20:47, Roman Haefeli a écrit :
On Mon, 2016-08-29 at 19:37 +0200, patrice colet wrote:
good to know, I was wondering if the problem mainly come from systemd.
I believe when you start tightvncserver, you're actually starting a second desktop session (on a different DISPLAY). That means, when you use the auto start infrastructure from your DE (desktop environment)for auto-starting Pd, it is started twice, because you're running two desktop sessions, one on DISPLAY=:0 (Raspbian is pre-configured to auto-login at start) and the one started from tightvncserver.
x11vnc doesn't start another session, but captures the already running session on DISPLAY=:0. That's why you don't see two instances of Pd, when running x11vnc.
Alternatively, you could disable auto-login, so that in the session on DISPLAY=:0 nothing gets auto-started (unless user 'pi' logs in). But that also means, you need to login into your tightvncserver session.
Alternatively, you could also start your Pd by cron (which is not attached to any desktop session and thus starts things only once). If you don't need a Pd GUI, that is probably the easiest solution. If you need a Pd GUI, you need to tell Pd in which DISPLAY to show the GUI, since cron doesn't have any notion of desktop sessions. This is what I sometimes do to auto-start Pd with GUI in it's own session:
Run 'crontab -e' to edit current user's crontab file. Then add a line like:
@reboot /usr/bin/vncserver :4 -name pure-data -geometry 1000x800 -dpi 80; sleep 5; DISPLAY=:4 /usr/bin/pd -open mypatch.pd
save it and reboot. At next boot, this will launch a vncserver on DISPLAY :4 and then start Pd with its GUI in said vnc session.
Roman
Le 28/08/2016 à 12:01, rolfm@dds.nl a écrit :
patrice colet wrote:
From what I understand about what triggers this bug it's tightvnc that is running twice puredata, some has resolved this by using x11vnc instead
src:
https://www.raspberrypi.org/forums/viewtopic.php?f=66&t=59285
thanks patrice for the helpfull link. it had nothing to do with puredata.
FYI: using x11vnc did indeed work. another method which seems to solve it is to start the headless Pi in CLI mode; then with tightvncserver there's also just 1 instance of puredata running.
rolf
Le 25/08/2016 à 13:39, rolfm@dds.nl a écrit :
hello,
(for me) strange problem of double instances of Pd.
raspbian jessie Pi-3, headless, VNC on laptop.
in /.config/LXEsession/autostart: @lxpanel --profile LXDE-pi @pcmanfm --desktop --profile LXDE-pi @puredata
after boot in Terminal command 'top':
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1105 pi -7 0 12632 5992 5292 S 1.7 0.6 0:00.57 puredata 1106 pi -7 0 12632 6104 5404 S 1.7 0.6 0:00.57 puredata 938 pi 20 0 12544 8224 3428 S 1.0 0.9 0:00.63 Xtightvnc 1399 pi 20 0 5112 2544 2140 R 0.7 0.3 0:00.10 top 903 root 20 0 98104 25936 18128 S 0.3 2.7 0:00.47 Xorg 1100 pi 20 0 94364 24608 20920 S 0.3 2.6 0:00.59 lxpanel 1101 pi 20 0 94188 24776 20972 S 0.3 2.6 0:00.68 lxpanel ......
there are 2 instances of puredata (and also 2 lxpanels)! and only one GUI visible on screen.
when i close the GUI, 1 Pd instance disappears, 1 remains (and a WISH).
without puredata in autostart there's only 1 lxpanel.
anybody experience with this?
is there better way to get Pd automatically started at boot?
rolf
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list
@Roman: thanks Roman i understand a bit better what's happening.
a bit OT:
Roman wrote:
Run 'crontab -e' to edit current user's crontab file. Then add a line like:
@reboot /usr/bin/vncserver :4 -name pure-data -geometry 1000x800 -dpi 80; sleep 5; DISPLAY=:4 /usr/bin/pd -open mypatch.pd
save it and reboot. At next boot, this will launch a vncserver on DISPLAY :4 and then start Pd with its GUI in said vnc session.
on my raspbian jessie this doesn't work. did you (Roman) install extra things?
rolf
-
patrice colet -
rolfm＠dds.nl -
Roman Haefeli