This bug was fixed in the package xorg-server - 2:1.19.5-0ubuntu2 --------------- xorg-server (2:1.19.5-0ubuntu2) artful; urgency=medium
* Backport upstream patch to fix cropping in XShmGetImage (LP: #1723732). -- Dmitry Shachnev <[email protected]> Sun, 15 Oct 2017 14:59:53 +0300 ** Changed in: xorg-server (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1723732 Title: XShmGetImage() crops returned image Status in xorg-server package in Ubuntu: Fix Released Bug description: [Impact] XShmGetImage() crops the image to the absolute region (x,y)-(x+w,y+h). For example, given a window with geometry 640x480+200+300 and a 640x480 image: XShmGetImage(display, window, image, 0, 0, AllPlanes); returns only the upper-left 440x180 of the window image, clearing the rest of the image to empty. Upstream fix: https://cgit.freedesktop.org/xorg/xserver/commit/?id=885636b7d42b3c7b151fc386d358184db004ce45 [Test Case] - Use xwininfo to get xid for CSD window, for example, nautilus - Use following command to take screenshot: gst-launch-1.0 ximagesrc xid=0x6600007 num-buffers=1 ! videoconvert ! pngenc ! filesink location=out.png - out.png should include full window screenshot - if screenshot looks good without patch, then repeat steps moving window to different place on screen, or try to maximize and/or try with different CSD window. - actually it is not required to test with CSD windows, bug is reproducible also with SSD windows. [Regression Potential] The fix only changes the implementation of XShmGetImage function, so the regression potential is limited to that function. Using gst-launch like in test case above or gnome-screenshot in GNOME Flashback session is a good way to test that there are no regressions. [Other Info] Upstream bug: https://bugs.freedesktop.org/show_bug.cgi?id=101730 GNOME Flashback bug: https://bugzilla.gnome.org/show_bug.cgi?id=788556 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1723732/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
