My Mint system has all those system Qt libraries, and they are Qt5 not Qt6. If I started again with a new iso it would probably be using Qt6, I bet.
On Tuesday, July 23, 2024 at 8:13:09 AM UTC-4 [email protected] wrote: > Paul, glad that worked! I must admit I was a bit skeptical that it would, > but glad we got there. > > Thomas, the qt6 dir I messaged is for Arch Linux — EndeavorOS is arch > based and I have a working Arch environment. That’s the only reason I > could figure that part out. What’s odd is that I *don’t* have to specify > those paths on my Arch environment. > > Also, Thomas, if you’re only finding qt6 plugins under your Python > site-packages on a Mint vm, I suspect you might not have the system qt6 > packages installed. If you do, I have *no* idea what’s happening in > Debian/Ubuntu/Mint land any longer 😅. > > Jake > > On Jul 23, 2024, at 7:30 AM, Thomas Passin <[email protected]> wrote: > > Good work! BTW, on my Linux Mint VM that path is > */home/tom/.local/lib/python3.11/site-packages/PyQt6/Qt6/plugins/platforms.* > The file of interest there must be *libqxcb.so*. > > > The system's *plugins/platform* is in */usr/lib and *is only for qt5. > > So we don't necessarily have a one-size-fits-all solution, but we're > closer. If you have the locate command: > > tom@tom-VirtualBox:~$ locate -r 'platforms$' |grep -i qt6 > /home/tom/.local/lib/python3.11/site-packages/PyQt6/Qt6/plugins/platforms > > otherwise (much slower) > > tom@tom-VirtualBox:~$ find / 2>/dev/null -type d -name platforms |grep -i > 'qt6' > /home/tom/.local/lib/python3.11/site-packages/PyQt6/Qt6/plugins/platforms > > On Tuesday, July 23, 2024 at 1:44:14 AM UTC-4 [email protected] wrote: > > I knew I am right here: > > QT_QPA_PLATFORM_PLUGIN_PATH= /usr/lib/qt6/plugins/platforms/ > QT_PLUGIN_PATH= /usr/lib/qt6/plugins/platforms > > did it! So, yet no need to downgrade. Many many thanks! > > As for the reinstall of endeavourOS: Could mean, that there are new Qt > libs and packages, that fix the bug. I'll check that. > > Again: Many thanks to you all! > Paul > > On Monday, July 22, 2024 at 5:44:42 PM UTC+2 [email protected] wrote: > > Super fun. > > You could try setting (one or both of) these before running leo, and > seeing if that makes any difference. > > QT_QPA_PLATFORM_PLUGIN_PATH= /usr/lib/qt6/plugins/platforms/ > QT_PLUGIN_PATH= /usr/lib/qt6/plugins/platforms > > Another possibility is a bad copy of libqxcb.so in your > /home/<username>/.local/lib/python3.<version>/site-packages directory > somewhere. I've never installed leo via pip, but if it pulled in a copy of > that lib somewhere in there that's not playing well with the system libs, > that'd be a possibility. IIRC the 'cv2' python lib ships that library with > it, maybe see if that's in there somehow? Or just do a recursive find for > it -- `find /home/<username>/.local/lib/python3.<version>/site-packages > -name libqxcb.so -ls` (or similar). > > Sorry this is being one of those mystery pains. :( > > Jake > > On Mon, Jul 22, 2024 at 11:32 AM [email protected] <[email protected]> > wrote: > > Yes, /usr/lib/qt6/plugins/platforms/libqxcb.so exists. Setting the > mentioned env var to wayland brings up the same error, with "wayland" > instead of "xcb" in the error text. It seems that there is a directory path > that didn't get set or has been deleted: 'not found in ""'. > > On Monday, July 22, 2024 at 5:24:57 PM UTC+2 [email protected] wrote: > > Does the file /usr/lib/qt6/plugins/platforms/libqxcb.so exist on your > system? > > Could you try re-installing package `qt6-base`, if not? > > Jake > > On Mon, Jul 22, 2024 at 10:56 AM Thomas Passin <[email protected]> wrote: > > It's still got to be some library in the xcb library system. So far as I > can see it's a Qt problem, not really a Leo one - although that doesn't > help, does it? Just having them already installed isn't always enough. I > remember one of my VMs had the culprit installed, but after I ran the > installation command for it then Qt worked. I don't remember any details, > though. I also recall that in one case the library name was different from > the one or two that had been suggested in the error message. That time I > lucked out with an Internet search. > > Which distro is this, BTW? > > On Monday, July 22, 2024 at 10:48:32 AM UTC-4 [email protected] wrote: > > Latest qt6-tools are Installed already. Installed qtutilities-qt6. No luck. > > As for the "&& leo" after setting the env var: That means: "and then start > leo". > > Setting the env var did not show more helpful text, alas. > > On Monday, July 22, 2024 at 3:34:41 PM UTC+2 [email protected] wrote: > > Apologies, pkg name is ‘qt6-tools’, not ‘qt6-utils’. > > Jake > > On Jul 22, 2024, at 9:30 AM, Jacob Peck <[email protected]> wrote: > > > > Thomas, their very first post in this thread indicated they did run with > that env var set. > > Please try (re-)installing qt6-utilis. That fixed it on my Arch install, > and I assume Endeavor uses the arch packages. > > Jake > > On Jul 22, 2024, at 8:50 AM, Thomas Passin <[email protected]> wrote: > > Try setting that debug variable: export QT_DEBUG_PLUGINS=1 > Maybe the Qt message will be more informative. BTW, you don't need > PyQt5. Leo doesn't use it any more. Please post the Qt error message here > if you can't resolve the problem. > On Monday, July 22, 2024 at 7:20:05 AM UTC-4 [email protected] wrote: > > Installed xcb-util-cursor, libxinerama. Reinstalled PyQt5, PyQt6 - to no > avail. > > > On Monday, July 22, 2024 at 12:28:47 PM UTC+2 [email protected] wrote: > > Here is a page that has some good information about fixing this problem in > case my previous post doesn't: > “Failed to load platform plugin ”xcb“ ” while launching qt5 app on linux > <https://askubuntu.com/questions/308128/failed-to-load-platform-plugin-xcb-while-launching-qt5-app-on-linux-without> > > Briefly, you can get a more complete error message by setting this > environmental variable before launching Leo: > > export QT_DEBUG_PLUGINS=1 > > On Monday, July 22, 2024 at 6:22:55 AM UTC-4 Thomas Passin wrote: > > This error comes up with small variations for some Linux systems. Many > times the error message will continue to suggest a command line for > installing the required library. That library may already be installed but > not the right version. If there was no suggestion, search online for how > to install it for your system. Often the library is named *libxcb-cursor0 > *but sometimes it goes by a different name. Here's a site than can help > finding the right install package: http://pkgs.org/ > > On Ubuntu systems, this command used to work (I don't know if it still > does): > > sudo apt-get install libxcb-xinerama0 > > Sometimes the required library goes by this name: *libqxcb.so* instead. > Sometimes the error message will suggest two possible names instead of just > the one. Try them both if the first doesn't do the job. > On Monday, July 22, 2024 at 5:40:34 AM UTC-4 [email protected] wrote: > > Issuing > > export QT_DEBUG_PLUGINS=1 && leo > > yields > > setting leoID from os.getenv('USER'): 'XXXXX' > qt.core.plugin.factoryloader: checking directory path "/usr/bin/platforms" > ... > qt.qpa.plugin: Could not find the Qt platform plugin "xcb" in "" > This application failed to start because no Qt platform plugin could be > initialized. Reinstalling the application may fix this problem. > > Everything with "xcb" in its name seems installed (I'am on endeavourOS). > Any idea, how I could proceed? > > What I did so far: > - Update the whole system (endeavourOS) > - Update Leo from PYPI > > Cheers > Paul > > -- > You received this message because you are subscribed to the Google Groups > "leo-editor" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/leo-editor/c2d16273-5d73-45d6-85f0-364af7f1d0f4n%40googlegroups.com > > <https://groups.google.com/d/msgid/leo-editor/c2d16273-5d73-45d6-85f0-364af7f1d0f4n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > -- > You received this message because you are subscribed to the Google Groups > "leo-editor" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/leo-editor/093c6127-0812-49d3-a929-9af9420a8d8dn%40googlegroups.com > > <https://groups.google.com/d/msgid/leo-editor/093c6127-0812-49d3-a929-9af9420a8d8dn%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > -- > You received this message because you are subscribed to the Google Groups > "leo-editor" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/leo-editor/e899e36b-de37-4b5d-92f2-bb0110ca5ce7n%40googlegroups.com > > <https://groups.google.com/d/msgid/leo-editor/e899e36b-de37-4b5d-92f2-bb0110ca5ce7n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > -- > You received this message because you are subscribed to the Google Groups > "leo-editor" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/leo-editor/ae860f2e-7870-4781-91d2-42aa25adfd64n%40googlegroups.com > > <https://groups.google.com/d/msgid/leo-editor/ae860f2e-7870-4781-91d2-42aa25adfd64n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > -- You received this message because you are subscribed to the Google Groups "leo-editor" group. 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