Re: [Development] matrix math help needed - https://bugreports.qt.io/browse/QTBUG-84441
Hi, I think the documentation is actually clear on the order by the scale() example. I'm not sure whether we should at explicitly the concept of intrinsic transform: https://en.wikipedia.org/wiki/Euler_angles#Definition_by_intrinsic_rotations The current QTransform documentation always states transforming the coordinate system. Probably, it's supposed to be easier to understand compared the word "intrinsic". The order of extrinsic transforms would be exactly the opposite of intrinsic transforms. Regards, Dongxu On Wed, May 27, 2020 at 10:09 AM Edward Welbourne wrote: > > > Here is, for example, the documentation of QTransform::scale: > > > > Scales the coordinate system by sx horizontally and sy vertically, > > and returns a reference to the matrix. > > > > *Nothing* there clearly states, at least to my reading, whether the > > "new" transform happens *before* or *after* any existing transforms that > > the QTransform is already doing. > > ___ > Development mailing list > Development@qt-project.org > https://lists.qt-project.org/listinfo/development > -- Dongxu Li, Ph.D. ___ Development mailing list Development@qt-project.org https://lists.qt-project.org/listinfo/development
[Libreoffice] LibreCAD as part of LibreOffice suite
Hello, I'm a LibreCAD ( http://www.librecad.org ) developer. Is it a good idea to include LibreCAD as part of the LibreOffice suite? The good: LibreCAD provides feature rich drawing (more than CAD, I use it to draw general 2D geometry shapes) The bad: no shared code with LibreOffice yet The ugly: LibreCAD is GPLv2 Thank you for you time! Regards, Dongxu Li ___ LibreOffice mailing list LibreOffice@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/libreoffice
[Ubuntu-x-swat] [Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
Hi Gursimran, yes, I'm positive that this bug doesn't affect VT. I tested it again and again, the pointer moved properly throughout the test. Again, since the pointer can be recovered by Alt-F7 (or Alt-F8), it's unlikely a synaptics bug. More likely, it's an X bug but only triggered by some types of touchpad. xev log clearly shows the bug, position root:(0,0) never changes with MotionNotify events. As I mentioned, when the pointer is trapped at root:(0,0), the touchpad basically works, I can still tap-2-click, xev records MotionEvents as well. This explains how I took the xev log mentioned. still, is there a way to make X more verbose on events? -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in ubuntu. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
Hi Fabio, the 6003C8 error is a well known consequence of touchpad's second query as /dev/input/mouse*, is harmless, and can be easily avoided, as shown in the attached Xorg.0.lo anyway, I'm sending the syslog kern.log still. Also, it's confirmed that archlinux is free from this bug, seems to be a ubuntu bug. ** Attachment added: Xorg.0.log https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1730811/+files/Xorg.0.log -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in ubuntu. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
** Attachment added: kern.log https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1730812/+files/kern.log -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in ubuntu. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
** Attachment added: syslog https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1730814/+files/syslog -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in ubuntu. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
Hi Gursimran, yes, I'm positive that this bug doesn't affect VT. I tested it again and again, the pointer moved properly throughout the test. Again, since the pointer can be recovered by Alt-F7 (or Alt-F8), it's unlikely a synaptics bug. More likely, it's an X bug but only triggered by some types of touchpad. xev log clearly shows the bug, position root:(0,0) never changes with MotionNotify events. As I mentioned, when the pointer is trapped at root:(0,0), the touchpad basically works, I can still tap-2-click, xev records MotionEvents as well. This explains how I took the xev log mentioned. still, is there a way to make X more verbose on events? -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
Hi Fabio, the 6003C8 error is a well known consequence of touchpad's second query as /dev/input/mouse*, is harmless, and can be easily avoided, as shown in the attached Xorg.0.lo anyway, I'm sending the syslog kern.log still. Also, it's confirmed that archlinux is free from this bug, seems to be a ubuntu bug. ** Attachment added: Xorg.0.log https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1730811/+files/Xorg.0.log -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
** Attachment added: kern.log https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1730812/+files/kern.log -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
** Attachment added: syslog https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1730814/+files/syslog -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Ubuntu-x-swat] [Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
Hi Gursimran, I tried to troubleshoot by evtest, and the log files are attached. the evtest-good.txt file was taken when the touchpad worked properly in X the evtest-stuck.txt was taken while the pointer in X stayed at root window(0,0) and can not be moved by touchpad. ** Attachment added: Xorg.0.log https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1729158/+files/Xorg.0.log -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in ubuntu. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
** Attachment added: evtest while the mouse pointer can not be moved by touchpad https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1729160/+files/evtest-stuck.txt -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in ubuntu. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
** Attachment added: evtest while mouse pointer can be moved by touchpad https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1729159/+files/evtest-good.txt -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in ubuntu. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
as I mentioned, there's no error message in logs. Even with -logverbose 6 when running X. dmesg reports no error from synatpics either. I'm attaching those log files anyway. ** Attachment added: Xorg.0.log from -logverbose 6 https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1729621/+files/Xorg.0.log -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in ubuntu. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
** Attachment added: dmesg.log https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1729622/+files/dmesg.log -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in ubuntu. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
** Attachment added: sorry, the previous Xorg.0.log was from a normal X session, this is the one from verbose level 6 https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1729637/+files/Xorg.failsafe.log -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in ubuntu. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
** Attachment added: evtest while mouse pointer can be moved by touchpad https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1729159/+files/evtest-good.txt -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
** Attachment added: evtest while the mouse pointer can not be moved by touchpad https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1729160/+files/evtest-stuck.txt -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
Hi Gursimran, I tried to troubleshoot by evtest, and the log files are attached. the evtest-good.txt file was taken when the touchpad worked properly in X the evtest-stuck.txt was taken while the pointer in X stayed at root window(0,0) and can not be moved by touchpad. ** Attachment added: Xorg.0.log https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1729158/+files/Xorg.0.log -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
as I mentioned, there's no error message in logs. Even with -logverbose 6 when running X. dmesg reports no error from synatpics either. I'm attaching those log files anyway. ** Attachment added: Xorg.0.log from -logverbose 6 https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1729621/+files/Xorg.0.log -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
** Attachment added: dmesg.log https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1729622/+files/dmesg.log -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 500658] Re: Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350
** Attachment added: sorry, the previous Xorg.0.log was from a normal X session, this is the one from verbose level 6 https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1729637/+files/Xorg.failsafe.log -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Ubuntu-x-swat] [Bug 500658] Re: pointer stuck in upper-left corner while using touchpad
yes, I can confirm this bug exists in 10.10 maverick. To reproduce the bug: randomly touch the upper-left corner of the touchpad, usually within seconds, the mouse pointer jumps to X root:(0,0), i.e., the upper-left corner of screen, and trying to move the pointer is futile thereafter. A way to workaround, hit Alt-F7 (move window), then, the pointer jumps and can be moved again. I found no error message in logs, so I try to log X events using xev. A sample of xev output is attached. When the pointer stuck, pointer moving events are recorded as, MotionNotify event, serial 31, synthetic NO, window 0x381, root 0xaf, subw 0x0, time 2940111, (-2,-2), root:(0,0), state 0x0, is_hint 0, same_screen YES MotionNotify event, serial 31, synthetic NO, window 0x381, root 0xaf, subw 0x0, time 2940120, (-2,-2), root:(0,0), state 0x0, is_hint 0, same_screen YES ** Attachment added: xev output showing mouse pointer stuck to root window (0,0) https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1728495/+files/xev.txt -- pointer stuck in upper-left corner while using touchpad https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in ubuntu. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Bug 500658] Re: pointer stuck in upper-left corner while using touchpad
yes, I can confirm this bug exists in 10.10 maverick. To reproduce the bug: randomly touch the upper-left corner of the touchpad, usually within seconds, the mouse pointer jumps to X root:(0,0), i.e., the upper-left corner of screen, and trying to move the pointer is futile thereafter. A way to workaround, hit Alt-F7 (move window), then, the pointer jumps and can be moved again. I found no error message in logs, so I try to log X events using xev. A sample of xev output is attached. When the pointer stuck, pointer moving events are recorded as, MotionNotify event, serial 31, synthetic NO, window 0x381, root 0xaf, subw 0x0, time 2940111, (-2,-2), root:(0,0), state 0x0, is_hint 0, same_screen YES MotionNotify event, serial 31, synthetic NO, window 0x381, root 0xaf, subw 0x0, time 2940120, (-2,-2), root:(0,0), state 0x0, is_hint 0, same_screen YES ** Attachment added: xev output showing mouse pointer stuck to root window (0,0) https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1728495/+files/xev.txt -- pointer stuck in upper-left corner while using touchpad https://bugs.launchpad.net/bugs/500658 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
(newbie), sysklogd freezes for minutes in booting
Hello All, I saw this before, but forgot the solution. My Debian/testing just spends minutes in starting sysklogd, when there's no network interface presents. The similar things happened to sendmail, xdm also. Thanks a lot! Regards, Dongxu Li -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
