Why do I get a black window when creating a whole desktop on remote?












-1















https://xpra.org/trac/wiki/Usage#Forwardingawholedesktop




Xpra normally forwards just the windows of the application you are
interested in. If you want to forward a full desktop instead
(including its start menu, background, task bar, etc...)
use the
"start-desktop" mode:



xpra start-desktop --start-child=fluxbox


Notes: you can start a window manager of your choice (here fluxbox) or
none at all..




I have two Lubuntu 18.04 laptops. I want to start a new session on one from the other and access it from the other



First start by running the window manager:



$ xpra start-desktop ssh:t@olive:400 --start-child=openbox
2019-03-12 19:39:57,590 Xpra gtk2 client version 2.1.3-r17247M 64-bit
2019-03-12 19:39:57,592 running on Linux Ubuntu 18.04 bionic
2019-03-12 19:39:57,594 Warning: failed to import opencv:
2019-03-12 19:39:57,594 No module named cv2
2019-03-12 19:39:57,594 webcam forwarding is disabled
Warning: failed to import GStreamer 1.x:
Namespace Gst not available
2019-03-12 19:39:59,304 Error: failed to query sound subsystem:
2019-03-12 19:39:59,305 query did not return any data
2019-03-12 19:40:00,690 Warning: vendor 'Intel Open Source Technology Center' is greylisted,
2019-03-12 19:40:00,691 you may want to turn off OpenGL if you encounter bugs
2019-03-12 19:40:00,714 PyOpenGL warning: missing accelerate module
2019-03-12 19:40:00,816 OpenGL enabled with Mesa DRI Mobile Intel® GM45 Express Chipset
2019-03-12 19:40:00,914 keyboard settings: rules=evdev, model=pc105, layout=us
2019-03-12 19:40:00,918 desktop size is 1440x900 with 1 screen:
2019-03-12 19:40:00,919 :0.0 (381x238 mm - DPI: 96x96) workarea: 1440x876
2019-03-12 19:40:00,920 monitor 1 (303x190 mm - DPI: 120x120)
t@olive's password:
Warning: cannot use the system proxy for 'start-desktop' subcommand,
failed to connect to '/run/xpra/system':
[Errno 2] No such file or directory
Entering daemon mode; any further errors will be reported to:
/run/user/1000/xpra/:400.log
InitException: failed to identify the new server display!
xpra initialization error:
failed to identify the new server display!
2019-03-12 19:40:26,066 Error: failed to receive anything, not an xpra server?
2019-03-12 19:40:26,066 could also be the wrong protocol, username, password or port
2019-03-12 19:40:26,066 Connection lost
2019-03-12 19:40:26,068 Error: printing disabled:
2019-03-12 19:40:26,073 No module named cups


Then connect to it:



$ xpra attach ssh:t@olive:400
2019-03-12 19:42:53,514 Xpra gtk2 client version 2.1.3-r17247M 64-bit
2019-03-12 19:42:53,514 running on Linux Ubuntu 18.04 bionic
2019-03-12 19:42:53,516 Warning: failed to import opencv:
2019-03-12 19:42:53,517 No module named cv2
2019-03-12 19:42:53,517 webcam forwarding is disabled
Warning: failed to import GStreamer 1.x:
Namespace Gst not available
2019-03-12 19:42:55,275 Error: failed to query sound subsystem:
2019-03-12 19:42:55,276 query did not return any data
2019-03-12 19:42:56,640 Warning: vendor 'Intel Open Source Technology Center' is greylisted,
2019-03-12 19:42:56,641 you may want to turn off OpenGL if you encounter bugs
2019-03-12 19:42:56,669 PyOpenGL warning: missing accelerate module
2019-03-12 19:42:56,782 OpenGL enabled with Mesa DRI Mobile Intel® GM45 Express Chipset
2019-03-12 19:42:56,886 keyboard settings: rules=evdev, model=pc105, layout=us
2019-03-12 19:42:56,892 desktop size is 1440x900 with 1 screen:
2019-03-12 19:42:56,893 :0.0 (381x238 mm - DPI: 96x96) workarea: 1440x876
2019-03-12 19:42:56,893 monitor 1 (303x190 mm - DPI: 120x120)
t@olive's password:
2019-03-12 19:43:05,014 Xpra X11 desktop server version 2.1.3-r17247 64-bit
2019-03-12 19:43:05,014 running on Linux Ubuntu 18.04 bionic
2019-03-12 19:43:05,015 enabled remote logging
2019-03-12 19:43:05,019 Attached to ssh/t@olive/:400 (press Control-C to detach)

2019-03-12 19:43:38,621 window-close event on desktop or shadow window, disconnecting
2019-03-12 19:43:38,623 Error: printing disabled:
2019-03-12 19:43:38,625 No module named cups


But it gives a completely black window. What shall I do?



enter image description here



If I start the GUI session (instead of window manager) on remote, by xpra start-desktop ssh:t@olive:400 --start-child=lxsession, it doesn't give me start menu, background, task bar, etc), but a very vague login small window. After I login, the same black window as above.



enter image description here



Thanks.










share|improve this question




















  • 1





    It would be much better if you follow the instructions of guide at your beginner stage.

    – 炸鱼薯条德里克
    24 mins ago











  • Could you kindly tell me how I did not follow it, or what specifically I shall follow?

    – Tim
    24 mins ago


















-1















https://xpra.org/trac/wiki/Usage#Forwardingawholedesktop




Xpra normally forwards just the windows of the application you are
interested in. If you want to forward a full desktop instead
(including its start menu, background, task bar, etc...)
use the
"start-desktop" mode:



xpra start-desktop --start-child=fluxbox


Notes: you can start a window manager of your choice (here fluxbox) or
none at all..




I have two Lubuntu 18.04 laptops. I want to start a new session on one from the other and access it from the other



First start by running the window manager:



$ xpra start-desktop ssh:t@olive:400 --start-child=openbox
2019-03-12 19:39:57,590 Xpra gtk2 client version 2.1.3-r17247M 64-bit
2019-03-12 19:39:57,592 running on Linux Ubuntu 18.04 bionic
2019-03-12 19:39:57,594 Warning: failed to import opencv:
2019-03-12 19:39:57,594 No module named cv2
2019-03-12 19:39:57,594 webcam forwarding is disabled
Warning: failed to import GStreamer 1.x:
Namespace Gst not available
2019-03-12 19:39:59,304 Error: failed to query sound subsystem:
2019-03-12 19:39:59,305 query did not return any data
2019-03-12 19:40:00,690 Warning: vendor 'Intel Open Source Technology Center' is greylisted,
2019-03-12 19:40:00,691 you may want to turn off OpenGL if you encounter bugs
2019-03-12 19:40:00,714 PyOpenGL warning: missing accelerate module
2019-03-12 19:40:00,816 OpenGL enabled with Mesa DRI Mobile Intel® GM45 Express Chipset
2019-03-12 19:40:00,914 keyboard settings: rules=evdev, model=pc105, layout=us
2019-03-12 19:40:00,918 desktop size is 1440x900 with 1 screen:
2019-03-12 19:40:00,919 :0.0 (381x238 mm - DPI: 96x96) workarea: 1440x876
2019-03-12 19:40:00,920 monitor 1 (303x190 mm - DPI: 120x120)
t@olive's password:
Warning: cannot use the system proxy for 'start-desktop' subcommand,
failed to connect to '/run/xpra/system':
[Errno 2] No such file or directory
Entering daemon mode; any further errors will be reported to:
/run/user/1000/xpra/:400.log
InitException: failed to identify the new server display!
xpra initialization error:
failed to identify the new server display!
2019-03-12 19:40:26,066 Error: failed to receive anything, not an xpra server?
2019-03-12 19:40:26,066 could also be the wrong protocol, username, password or port
2019-03-12 19:40:26,066 Connection lost
2019-03-12 19:40:26,068 Error: printing disabled:
2019-03-12 19:40:26,073 No module named cups


Then connect to it:



$ xpra attach ssh:t@olive:400
2019-03-12 19:42:53,514 Xpra gtk2 client version 2.1.3-r17247M 64-bit
2019-03-12 19:42:53,514 running on Linux Ubuntu 18.04 bionic
2019-03-12 19:42:53,516 Warning: failed to import opencv:
2019-03-12 19:42:53,517 No module named cv2
2019-03-12 19:42:53,517 webcam forwarding is disabled
Warning: failed to import GStreamer 1.x:
Namespace Gst not available
2019-03-12 19:42:55,275 Error: failed to query sound subsystem:
2019-03-12 19:42:55,276 query did not return any data
2019-03-12 19:42:56,640 Warning: vendor 'Intel Open Source Technology Center' is greylisted,
2019-03-12 19:42:56,641 you may want to turn off OpenGL if you encounter bugs
2019-03-12 19:42:56,669 PyOpenGL warning: missing accelerate module
2019-03-12 19:42:56,782 OpenGL enabled with Mesa DRI Mobile Intel® GM45 Express Chipset
2019-03-12 19:42:56,886 keyboard settings: rules=evdev, model=pc105, layout=us
2019-03-12 19:42:56,892 desktop size is 1440x900 with 1 screen:
2019-03-12 19:42:56,893 :0.0 (381x238 mm - DPI: 96x96) workarea: 1440x876
2019-03-12 19:42:56,893 monitor 1 (303x190 mm - DPI: 120x120)
t@olive's password:
2019-03-12 19:43:05,014 Xpra X11 desktop server version 2.1.3-r17247 64-bit
2019-03-12 19:43:05,014 running on Linux Ubuntu 18.04 bionic
2019-03-12 19:43:05,015 enabled remote logging
2019-03-12 19:43:05,019 Attached to ssh/t@olive/:400 (press Control-C to detach)

2019-03-12 19:43:38,621 window-close event on desktop or shadow window, disconnecting
2019-03-12 19:43:38,623 Error: printing disabled:
2019-03-12 19:43:38,625 No module named cups


But it gives a completely black window. What shall I do?



enter image description here



If I start the GUI session (instead of window manager) on remote, by xpra start-desktop ssh:t@olive:400 --start-child=lxsession, it doesn't give me start menu, background, task bar, etc), but a very vague login small window. After I login, the same black window as above.



enter image description here



Thanks.










share|improve this question




















  • 1





    It would be much better if you follow the instructions of guide at your beginner stage.

    – 炸鱼薯条德里克
    24 mins ago











  • Could you kindly tell me how I did not follow it, or what specifically I shall follow?

    – Tim
    24 mins ago
















-1












-1








-1








https://xpra.org/trac/wiki/Usage#Forwardingawholedesktop




Xpra normally forwards just the windows of the application you are
interested in. If you want to forward a full desktop instead
(including its start menu, background, task bar, etc...)
use the
"start-desktop" mode:



xpra start-desktop --start-child=fluxbox


Notes: you can start a window manager of your choice (here fluxbox) or
none at all..




I have two Lubuntu 18.04 laptops. I want to start a new session on one from the other and access it from the other



First start by running the window manager:



$ xpra start-desktop ssh:t@olive:400 --start-child=openbox
2019-03-12 19:39:57,590 Xpra gtk2 client version 2.1.3-r17247M 64-bit
2019-03-12 19:39:57,592 running on Linux Ubuntu 18.04 bionic
2019-03-12 19:39:57,594 Warning: failed to import opencv:
2019-03-12 19:39:57,594 No module named cv2
2019-03-12 19:39:57,594 webcam forwarding is disabled
Warning: failed to import GStreamer 1.x:
Namespace Gst not available
2019-03-12 19:39:59,304 Error: failed to query sound subsystem:
2019-03-12 19:39:59,305 query did not return any data
2019-03-12 19:40:00,690 Warning: vendor 'Intel Open Source Technology Center' is greylisted,
2019-03-12 19:40:00,691 you may want to turn off OpenGL if you encounter bugs
2019-03-12 19:40:00,714 PyOpenGL warning: missing accelerate module
2019-03-12 19:40:00,816 OpenGL enabled with Mesa DRI Mobile Intel® GM45 Express Chipset
2019-03-12 19:40:00,914 keyboard settings: rules=evdev, model=pc105, layout=us
2019-03-12 19:40:00,918 desktop size is 1440x900 with 1 screen:
2019-03-12 19:40:00,919 :0.0 (381x238 mm - DPI: 96x96) workarea: 1440x876
2019-03-12 19:40:00,920 monitor 1 (303x190 mm - DPI: 120x120)
t@olive's password:
Warning: cannot use the system proxy for 'start-desktop' subcommand,
failed to connect to '/run/xpra/system':
[Errno 2] No such file or directory
Entering daemon mode; any further errors will be reported to:
/run/user/1000/xpra/:400.log
InitException: failed to identify the new server display!
xpra initialization error:
failed to identify the new server display!
2019-03-12 19:40:26,066 Error: failed to receive anything, not an xpra server?
2019-03-12 19:40:26,066 could also be the wrong protocol, username, password or port
2019-03-12 19:40:26,066 Connection lost
2019-03-12 19:40:26,068 Error: printing disabled:
2019-03-12 19:40:26,073 No module named cups


Then connect to it:



$ xpra attach ssh:t@olive:400
2019-03-12 19:42:53,514 Xpra gtk2 client version 2.1.3-r17247M 64-bit
2019-03-12 19:42:53,514 running on Linux Ubuntu 18.04 bionic
2019-03-12 19:42:53,516 Warning: failed to import opencv:
2019-03-12 19:42:53,517 No module named cv2
2019-03-12 19:42:53,517 webcam forwarding is disabled
Warning: failed to import GStreamer 1.x:
Namespace Gst not available
2019-03-12 19:42:55,275 Error: failed to query sound subsystem:
2019-03-12 19:42:55,276 query did not return any data
2019-03-12 19:42:56,640 Warning: vendor 'Intel Open Source Technology Center' is greylisted,
2019-03-12 19:42:56,641 you may want to turn off OpenGL if you encounter bugs
2019-03-12 19:42:56,669 PyOpenGL warning: missing accelerate module
2019-03-12 19:42:56,782 OpenGL enabled with Mesa DRI Mobile Intel® GM45 Express Chipset
2019-03-12 19:42:56,886 keyboard settings: rules=evdev, model=pc105, layout=us
2019-03-12 19:42:56,892 desktop size is 1440x900 with 1 screen:
2019-03-12 19:42:56,893 :0.0 (381x238 mm - DPI: 96x96) workarea: 1440x876
2019-03-12 19:42:56,893 monitor 1 (303x190 mm - DPI: 120x120)
t@olive's password:
2019-03-12 19:43:05,014 Xpra X11 desktop server version 2.1.3-r17247 64-bit
2019-03-12 19:43:05,014 running on Linux Ubuntu 18.04 bionic
2019-03-12 19:43:05,015 enabled remote logging
2019-03-12 19:43:05,019 Attached to ssh/t@olive/:400 (press Control-C to detach)

2019-03-12 19:43:38,621 window-close event on desktop or shadow window, disconnecting
2019-03-12 19:43:38,623 Error: printing disabled:
2019-03-12 19:43:38,625 No module named cups


But it gives a completely black window. What shall I do?



enter image description here



If I start the GUI session (instead of window manager) on remote, by xpra start-desktop ssh:t@olive:400 --start-child=lxsession, it doesn't give me start menu, background, task bar, etc), but a very vague login small window. After I login, the same black window as above.



enter image description here



Thanks.










share|improve this question
















https://xpra.org/trac/wiki/Usage#Forwardingawholedesktop




Xpra normally forwards just the windows of the application you are
interested in. If you want to forward a full desktop instead
(including its start menu, background, task bar, etc...)
use the
"start-desktop" mode:



xpra start-desktop --start-child=fluxbox


Notes: you can start a window manager of your choice (here fluxbox) or
none at all..




I have two Lubuntu 18.04 laptops. I want to start a new session on one from the other and access it from the other



First start by running the window manager:



$ xpra start-desktop ssh:t@olive:400 --start-child=openbox
2019-03-12 19:39:57,590 Xpra gtk2 client version 2.1.3-r17247M 64-bit
2019-03-12 19:39:57,592 running on Linux Ubuntu 18.04 bionic
2019-03-12 19:39:57,594 Warning: failed to import opencv:
2019-03-12 19:39:57,594 No module named cv2
2019-03-12 19:39:57,594 webcam forwarding is disabled
Warning: failed to import GStreamer 1.x:
Namespace Gst not available
2019-03-12 19:39:59,304 Error: failed to query sound subsystem:
2019-03-12 19:39:59,305 query did not return any data
2019-03-12 19:40:00,690 Warning: vendor 'Intel Open Source Technology Center' is greylisted,
2019-03-12 19:40:00,691 you may want to turn off OpenGL if you encounter bugs
2019-03-12 19:40:00,714 PyOpenGL warning: missing accelerate module
2019-03-12 19:40:00,816 OpenGL enabled with Mesa DRI Mobile Intel® GM45 Express Chipset
2019-03-12 19:40:00,914 keyboard settings: rules=evdev, model=pc105, layout=us
2019-03-12 19:40:00,918 desktop size is 1440x900 with 1 screen:
2019-03-12 19:40:00,919 :0.0 (381x238 mm - DPI: 96x96) workarea: 1440x876
2019-03-12 19:40:00,920 monitor 1 (303x190 mm - DPI: 120x120)
t@olive's password:
Warning: cannot use the system proxy for 'start-desktop' subcommand,
failed to connect to '/run/xpra/system':
[Errno 2] No such file or directory
Entering daemon mode; any further errors will be reported to:
/run/user/1000/xpra/:400.log
InitException: failed to identify the new server display!
xpra initialization error:
failed to identify the new server display!
2019-03-12 19:40:26,066 Error: failed to receive anything, not an xpra server?
2019-03-12 19:40:26,066 could also be the wrong protocol, username, password or port
2019-03-12 19:40:26,066 Connection lost
2019-03-12 19:40:26,068 Error: printing disabled:
2019-03-12 19:40:26,073 No module named cups


Then connect to it:



$ xpra attach ssh:t@olive:400
2019-03-12 19:42:53,514 Xpra gtk2 client version 2.1.3-r17247M 64-bit
2019-03-12 19:42:53,514 running on Linux Ubuntu 18.04 bionic
2019-03-12 19:42:53,516 Warning: failed to import opencv:
2019-03-12 19:42:53,517 No module named cv2
2019-03-12 19:42:53,517 webcam forwarding is disabled
Warning: failed to import GStreamer 1.x:
Namespace Gst not available
2019-03-12 19:42:55,275 Error: failed to query sound subsystem:
2019-03-12 19:42:55,276 query did not return any data
2019-03-12 19:42:56,640 Warning: vendor 'Intel Open Source Technology Center' is greylisted,
2019-03-12 19:42:56,641 you may want to turn off OpenGL if you encounter bugs
2019-03-12 19:42:56,669 PyOpenGL warning: missing accelerate module
2019-03-12 19:42:56,782 OpenGL enabled with Mesa DRI Mobile Intel® GM45 Express Chipset
2019-03-12 19:42:56,886 keyboard settings: rules=evdev, model=pc105, layout=us
2019-03-12 19:42:56,892 desktop size is 1440x900 with 1 screen:
2019-03-12 19:42:56,893 :0.0 (381x238 mm - DPI: 96x96) workarea: 1440x876
2019-03-12 19:42:56,893 monitor 1 (303x190 mm - DPI: 120x120)
t@olive's password:
2019-03-12 19:43:05,014 Xpra X11 desktop server version 2.1.3-r17247 64-bit
2019-03-12 19:43:05,014 running on Linux Ubuntu 18.04 bionic
2019-03-12 19:43:05,015 enabled remote logging
2019-03-12 19:43:05,019 Attached to ssh/t@olive/:400 (press Control-C to detach)

2019-03-12 19:43:38,621 window-close event on desktop or shadow window, disconnecting
2019-03-12 19:43:38,623 Error: printing disabled:
2019-03-12 19:43:38,625 No module named cups


But it gives a completely black window. What shall I do?



enter image description here



If I start the GUI session (instead of window manager) on remote, by xpra start-desktop ssh:t@olive:400 --start-child=lxsession, it doesn't give me start menu, background, task bar, etc), but a very vague login small window. After I login, the same black window as above.



enter image description here



Thanks.







lxde openbox lubuntu xpra






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 25 mins ago







Tim

















asked 58 mins ago









TimTim

27.7k78264483




27.7k78264483








  • 1





    It would be much better if you follow the instructions of guide at your beginner stage.

    – 炸鱼薯条德里克
    24 mins ago











  • Could you kindly tell me how I did not follow it, or what specifically I shall follow?

    – Tim
    24 mins ago
















  • 1





    It would be much better if you follow the instructions of guide at your beginner stage.

    – 炸鱼薯条德里克
    24 mins ago











  • Could you kindly tell me how I did not follow it, or what specifically I shall follow?

    – Tim
    24 mins ago










1




1





It would be much better if you follow the instructions of guide at your beginner stage.

– 炸鱼薯条德里克
24 mins ago





It would be much better if you follow the instructions of guide at your beginner stage.

– 炸鱼薯条德里克
24 mins ago













Could you kindly tell me how I did not follow it, or what specifically I shall follow?

– Tim
24 mins ago







Could you kindly tell me how I did not follow it, or what specifically I shall follow?

– Tim
24 mins ago












0






active

oldest

votes











Your Answer








StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "106"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f505977%2fwhy-do-i-get-a-black-window-when-creating-a-whole-desktop-on-remote%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































Thanks for contributing an answer to Unix & Linux Stack Exchange!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f505977%2fwhy-do-i-get-a-black-window-when-creating-a-whole-desktop-on-remote%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

濃尾地震

How to rewrite equation of hyperbola in standard form

No ethernet ip address in my vocore2