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If I do a screenshot to clipboard like this:

xsnap -png -stdout | xclip -selection primary -t image/png

.....then a middle-mouse-button-paste to thunderbird yields a binary paste starting with '�PNG IHDR' and bunch of gibberish (binary data).

If I instead do a middle-mouse-button-paste to libreoffice first (yes, this works), then I can paste an image into thunderbird successfully. No explicit copy (select or ctrl-c) from libreoffice required.

I expect half the reason for this is that libreoffice modifies the selection the moment I paste there. So there is a recognizable (by thunderbird) image in the selection buffer after libreoffice is done.

But I can also do:

xsnap -png -stdout | xclip -selection primary -t image/png
xclip -selection primary -t image/png -o > beforepastetolibreoffce.png

...and insert beforepastetolibreoffce.png into thunderbird.

If I paste to libreoffice and do:

xclip -selection primary -t image/png -o > afterpastetolibreoffice.png

.... I end up with:

-rw-r--r-- 1 dagb dagb  6505 aug.  21 13:48 beforepastetolibreoffice.png
-rw-r--r-- 1 dagb dagb 27914 aug.  21 13:49 afterpastetolibreoffice.png

...confirming my theory above. libreoffice modifies the primary selection.

thunderbird is equally unhappy about the jpeg format which xclip writes to the primary selection buffer.

I believe I have an idea about what happens here. But how do I approach debugging this further? Unsure if the bug here lies with xclip or firefox, even if libreoffice can parse the selection buffer as written by xclip.

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  • Did you ever find a fix for this? This problem has been here for a very long time. – scippie Feb 23 at 11:45

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