See full description from #2599
tl;dr: a bunch of:
2020-02-18 22:57:27,544 Error: failed to set clipboard data 2020-02-18 22:57:27,544 OpenClipboard: access denied 2020-02-18 22:57:27,548 Warning: cannot set clipboard value 2020-02-18 22:57:27,552 failed to set clipboard buffer
I kinda feel there may be something:
On my gnome-terminal display, I cannot copy-paste from local to remote. Copying remote-to-local updates come (that's how I got the backtrace for ticket:2034#comment:4), but I cannot e.g. copy a URL locally and paste it remotely.
The most weird thing is that, in the gnome-terminal display, I get no error messages regarding clipboard.
Since I cannot open session details to indeed verify that I haven't disabled it, here is a grep for you:
$ xpra info 2 | grep clipboard xpra for python 2.7 is not installed retrying with python3 client.clipboard.contents-slice-fix=True client.clipboard.enabled=True client.clipboard.greedy=True client.clipboard.notifications=True client.clipboard.preferred-targets=('UTF8_STRING', 'TEXT', 'STRING', 'text/plain') client.clipboard.selections=('CLIPBOARD',) client.clipboard.set-enabled=True client.clipboard.want-targets=False client.connection.input.count.clipboard-contents=1 client.connection.input.count.clipboard-enable-selections=1 client.connection.input.count.clipboard-token=75 client.connection.input.count.set-clipboard-enabled=1 client.connection.output.count.clipboard-pending-requests=82 client.connection.output.count.clipboard-request=59 client.connection.output.count.clipboard-token=74 client.connection.receive_alias.33=clipboard-enable-selections client.connection.receive_alias.34=set-clipboard-enabled client.connection.receive_alias.35=clipboard-contents client.connection.receive_alias.36=clipboard-request client.connection.receive_alias.53=clipboard-contents-none client.connection.receive_alias.55=clipboard-loop-uuids client.connection.receive_alias.61=clipboard-pending-requests client.connection.receive_alias.62=clipboard-token client.connection.send_alias.clipboard-contents=47 client.connection.send_alias.clipboard-contents-none=48 client.connection.send_alias.clipboard-enable-selections=50 client.connection.send_alias.clipboard-pending-requests=49 client.connection.send_alias.clipboard-request=46 client.connection.send_alias.clipboard-token=45 client.connection.send_alias.set-clipboard-enabled=44 clipboard.CLIPBOARD.blocked_owner_change=False clipboard.CLIPBOARD.enabled=True clipboard.CLIPBOARD.event.get_contents=0 clipboard.CLIPBOARD.event.got_token=52 clipboard.CLIPBOARD.event.request_contents=0 clipboard.CLIPBOARD.event.selection_clear=0 clipboard.CLIPBOARD.event.selection_get=0 clipboard.CLIPBOARD.event.selection_request=0 clipboard.CLIPBOARD.event.sent_token=0 clipboard.CLIPBOARD.greedy_client=True clipboard.CLIPBOARD.have_token=True clipboard.CLIPBOARD.last-targets=() clipboard.CLIPBOARD.loop-uuid=Xpra-Clipboard-Loop-Detection:384699b223174de082bfc5af73be9557 clipboard.CLIPBOARD.preferred-targets=('UTF8_STRING', 'TEXT', 'STRING', 'text/plain') clipboard.PRIMARY.blocked_owner_change=False clipboard.PRIMARY.enabled=True clipboard.PRIMARY.event.get_contents=0 clipboard.PRIMARY.event.got_token=13 clipboard.PRIMARY.event.request_contents=0 clipboard.PRIMARY.event.selection_clear=0 clipboard.PRIMARY.event.selection_get=0 clipboard.PRIMARY.event.selection_request=0 clipboard.PRIMARY.event.sent_token=0 clipboard.PRIMARY.greedy_client=True clipboard.PRIMARY.have_token=False clipboard.PRIMARY.last-targets=() clipboard.PRIMARY.loop-uuid=Xpra-Clipboard-Loop-Detection:897bae4763e643da96b4c74291792d9c clipboard.PRIMARY.preferred-targets=('UTF8_STRING', 'TEXT', 'STRING', 'text/plain') clipboard.SECONDARY.blocked_owner_change=False clipboard.SECONDARY.enabled=True clipboard.SECONDARY.event.get_contents=0 clipboard.SECONDARY.event.got_token=0 clipboard.SECONDARY.event.request_contents=0 clipboard.SECONDARY.event.selection_clear=0 clipboard.SECONDARY.event.selection_get=0 clipboard.SECONDARY.event.selection_request=0 clipboard.SECONDARY.event.sent_token=0 clipboard.SECONDARY.greedy_client=True clipboard.SECONDARY.have_token=False clipboard.SECONDARY.last-targets=() clipboard.SECONDARY.loop-uuid=Xpra-Clipboard-Loop-Detection:61e2ddbf7cea4ad1b22539492e124b0e clipboard.SECONDARY.preferred-targets=('UTF8_STRING', 'TEXT', 'STRING', 'text/plain') clipboard.can-receive=True clipboard.can-send=True clipboard.filters=() clipboard.max_recv_size=-1 clipboard.max_send_size=-1 clipboard.max_size=16777216 clipboard.pending=() clipboard.requests=94 clipboard.type=X11Clipboard clipboard.want_targets=False features.clipboard=True features.clipboard-direction=both features.clipboard.contents-slice-fix=True features.clipboard.enable-selections=True features.clipboard.loop-uuids.CLIPBOARD=Xpra-Clipboard-Loop-Detection:384699b223174de082bfc5af73be9557 features.clipboard.loop-uuids.PRIMARY=Xpra-Clipboard-Loop-Detection:897bae4763e643da96b4c74291792d9c features.clipboard.loop-uuids.SECONDARY=Xpra-Clipboard-Loop-Detection:61e2ddbf7cea4ad1b22539492e124b0e features.clipboard.preferred-targets=('UTF8_STRING', 'TEXT', 'STRING', 'text/plain', 'image/png') features.clipboards=('CLIPBOARD', 'PRIMARY', 'SECONDARY')
r25314 makes things a bit better (two-way clipboard is working), but you still may need to kick or bash it, before it works
"Xpra-Python3-x86_64_4.0-r25314\xpra_cmd" shadow ssh://user@ip/0 --ssh="plink -ssh -agent" --opengl=no --desktop-scaling=0.75 --min-speed=70 --webcam=no --speaker=off --microphone=off --pulseaudio=no --exit-with-client=no --encoding=h264 2020-02-20 20:40:10,610 Xpra GTK3 client version 4.0-r25314 64-bit 2020-02-20 20:40:10,614 running on Microsoft Windows 10 2020-02-20 20:40:12,615 GStreamer version 1.16.2 for Python 3.8.1 64-bit 2020-02-20 20:40:13,217 keyboard layout code 0x409 2020-02-20 20:40:13,217 identified as 'United States - English' : us 2020-02-20 20:40:13,829 keyboard settings: layout=us 2020-02-20 20:40:13,829 desktop size is 1600x900 with 1 screen: 2020-02-20 20:40:13,845 Default (423x238 mm - DPI: 96x96) workarea: 1600x860 2020-02-20 20:40:13,845 (Standard monitor types) Generic PnP Monitor (309x174 mm - DPI: 131x131) 2020-02-20 20:40:13,845 downscaled to 75%, virtual screen size: 2133x1200 2020-02-20 20:40:13,845 Default (423x238 mm - DPI: 128x128) workarea: 2133x1147 2020-02-20 20:40:13,845 (Standard monitor types) Generic PnP Monitor (309x174 mm - DPI: 175x175) 2020-02-20 20:40:52,132 enabled remote logging 2020-02-20 20:40:52,132 server is using auto encoding instead of h264 2020-02-20 20:40:52,132 Xpra GTK3 shadow server version 3.0.6-r25174 64-bit 2020-02-20 20:40:52,148 running on Linux Ubuntu 16.04 xenial 2020-02-20 20:40:52,148 remote desktop size is 6400x1440 (xpra_cmd:8640): Pango-WARNING **: 20:40:52.973: couldn't load font "Bitstream Vera Sans Not-Rotated 14.662109375", falling back to "Sans Not-Rotated 14.662109375", expect ugly output. 2020-02-20 20:40:54,017 UI thread is now blocked 2020-02-20 20:40:54,156 UI thread is running again, resuming 2020-02-20 20:41:49,067 Warning: cannot set clipboard value 2020-02-20 20:41:49,067 failed to set clipboard buffer 2020-02-20 20:42:30,018 Warning: cannot set clipboard value 2020-02-20 20:42:30,018 failed to set clipboard buffer 2020-02-20 20:43:54,707 Warning: cannot set clipboard value 2020-02-20 20:43:54,707 failed to set clipboard buffer 2020-02-20 20:48:04,681 server is not responding, drawing spinners over the windows 2020-02-20 20:48:05,711 server is OK again 2020-02-20 20:48:14,791 server is not responding, drawing spinners over the windows 2020-02-20 20:48:15,050 server is OK again 2020-02-20 20:48:19,828 server is not responding, drawing spinners over the windows 2020-02-20 20:48:22,223 server is OK again 2020-02-20 20:48:50,111 server is not responding, drawing spinners over the windows 2020-02-20 20:48:51,409 server is OK again 2020-02-20 20:49:15,157 server is not responding, drawing spinners over the windows 2020-02-20 20:49:15,413 server is OK again 2020-02-20 20:49:35,193 server is not responding, drawing spinners over the windows 2020-02-20 20:49:36,477 server is OK again 2020-02-20 20:50:00,310 server is not responding, drawing spinners over the windows 2020-02-20 20:50:01,332 server is OK again 2020-02-20 20:50:25,360 server is not responding, drawing spinners over the windows 2020-02-20 20:50:26,422 server is OK again (xpra_cmd:8640): Gtk-WARNING **: 20:50:48.109: Could not find the icon 'pan-end-symbolic'. The 'hicolor' theme was not found either, perhaps you need to install it. You can get a copy from: http://icon-theme.freedesktop.org/releases Traceback (most recent call last): File "E:\Xpra\trunk\src/xpra/client/gtk_base/gtk_tray_menu_base.py", line 454, in show_session_info_cb File "E:\Xpra\trunk\src/xpra/client/gtk_base/gtk_tray_menu_base.py", line 315, in show_session_info File "E:\Xpra\trunk\src/xpra/client/gtk_base/gtk_client_base.py", line 563, in show_session_info File "E:\Xpra\trunk\src/xpra/client/gtk_base/session_info.py", line 228, in __init__ File "E:\Xpra\trunk\src/xpra/client/gtk_base/session_info.py", line 227, in sgllabel TypeError: 'NoneType' object is not iterable 2020-02-20 20:51:16,105 Error: failed to get clipboard data 2020-02-20 20:51:16,105 OpenClipboard: too many failed attemps, giving up
The 2020-02-20 20:51:16,105 Error: failed to get clipboard data
message came as soon as I copied the above terminal output
From #2617
"Xpra-Python3-x86_64_4.0-r25345\xpra_cmd" shadow ssh://user@ip/0 --ssh="plink -ssh -agent" --opengl=no --desktop-scaling=0.75 --min-speed=70 --webcam=no --speaker=off --microphone=off --pulseaudio=no --exit-with-client=no 2020-03-03 21:07:51,309 Xpra GTK3 client version 4.0-r25345 64-bit 2020-03-03 21:07:51,311 running on Microsoft Windows 10 2020-03-03 21:07:52,491 GStreamer version 1.16.2 for Python 3.8.1 64-bit 2020-03-03 21:07:52,819 keyboard layout code 0x409 2020-03-03 21:07:52,820 identified as 'United States - English' : us 2020-03-03 21:07:53,413 keyboard settings: layout=us 2020-03-03 21:07:53,418 desktop size is 1600x900 with 1 screen: 2020-03-03 21:07:53,420 Default (423x238 mm - DPI: 96x96) workarea: 1600x860 2020-03-03 21:07:53,422 (Standard monitor types) Generic PnP Monitor (309x174 mm - DPI: 131x131) 2020-03-03 21:07:53,423 downscaled to 75%, virtual screen size: 2133x1200 2020-03-03 21:07:53,425 Default (423x238 mm - DPI: 128x128) workarea: 2133x1147 2020-03-03 21:07:53,430 (Standard monitor types) Generic PnP Monitor (309x174 mm - DPI: 175x175) 2020-03-03 21:08:11,951 enabled remote logging 2020-03-03 21:08:11,957 Xpra GTK3 shadow server version 3.0.6-r25174 64-bit 2020-03-03 21:08:11,960 running on Linux Ubuntu 16.04 xenial 2020-03-03 21:08:11,963 remote desktop size is 6400x1440 [...] (xpra_cmd:11928): Gtk-WARNING **: 22:24:40.716: Error loading theme icon 'document-save' for stock: Icon 'document-save' not present in theme Adwaita 2020-03-03 22:40:02,014 Error: failed to get clipboard data 2020-03-03 22:40:02,017 OpenClipboard: too many failed attemps, giving up 2020-03-03 22:41:01,096 Error: failed to get clipboard data 2020-03-03 22:41:01,098 no matching format in 2020-03-03 22:41:01,272 Error: failed to get clipboard data 2020-03-03 22:41:01,275 OpenClipboard: too many failed attemps, giving up 2020-03-03 22:41:03,542 Error: failed to get clipboard data 2020-03-03 22:41:03,544 OpenClipboard: too many failed attemps, giving up 2020-03-03 22:41:05,124 Error: failed to get clipboard data 2020-03-03 22:41:05,127 OpenClipboard: too many failed attemps, giving up 2020-03-03 22:41:30,190 Error: failed to get clipboard data 2020-03-03 22:41:30,192 OpenClipboard: too many failed attemps, giving up 2020-03-03 22:41:50,526 Error: failed to get clipboard data 2020-03-03 22:41:50,530 OpenClipboard: too many failed attemps, giving up 2020-03-03 22:41:51,911 Error: failed to get clipboard data 2020-03-03 22:41:51,917 OpenClipboard: too many failed attemps, giving up 2020-03-03 22:57:50,292 Error: failed to get clipboard data 2020-03-03 22:57:50,294 no matching format in DataObject, System.Drawing.Bitmap, CF_BITMAP, Ole Private Data, CF_DIB, CF_DIBV5 2020-03-03 22:57:50,451 Error: failed to get clipboard data 2020-03-03 22:57:50,452 no matching format in DataObject, System.Drawing.Bitmap, CF_BITMAP, Ole Private Data, CF_DIB, CF_DIBV5 2020-03-03 23:35:40,000 server is not responding, drawing spinners over the windows 2
Please try 4.0-r25483 or later. You can then use new environment variables to retry more (or less):
xpra_cmd attach -d clipboard --env=XPRA_CLIPBOARD_RETRY=10 --env=XPRA_CLIPBOARD_INITIAL_DELAY=10 ...
(the default remains 5 / 5)
Note that in some cases, some other application will be hogging the clipboard and failing is the right thing to do. (better than waiting too long) Also, if the data on the clipboard is not handled, you will see messages like these:
no matching format in DataObject, System.Drawing.Bitmap, CF_BITMAP, Ole Private Data, CF_DIB, CF_DIBV5
We may deal with this eventually: #2619.
Managed to reproduce clipboard race conditions by having both virtualbox and xpra fight over who should be synchronizing the clipboard and in which direction. r25516 fixes one more bug, we try again for 2 other possible failures: failure to get a data handle or failure to get a global lock.
Since I feel I've got my clipboard sync back, and work has been commited for this ticket, I'll close as fix. Xpra-Python3-x86_64_4.0-r25519 seems to have more or less the same "logs per minute" as usual.
I have noticed that this might be related to having a ternimal and a shadow session in parallel (same server, and obviously different displays). I think xpra handles itself trying to sync between instances though, right?
I'll keep this in my saved tickets; if I run in clip-sync issues, I'll try to increase the defaults.
I have noticed that this might be related to having a terminal and a shadow session in parallel (same server, and obviously different displays). I think xpra handles itself trying to sync between instances though, right?
That's definitely what triggered those issues (and what I was missing when trying to reproduce). Instances will be fighting over who should be doing the synchronization and in which direction.
Oops! :/
I thought that xpra could resolve syncing by itself (I don't know what gave me that idea though :/ )
Can also happen with shadow server connected alone though
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/2603