This bug appears in current (X)ubuntu 16.10. Whether appears in 16.04 is unknown. (Perhaps not, else I could notice it earlier.) I tried to make a test in a virtual (virtualboxed) Xubuntu_16.04.1 - no bug! Then I made a test in a (similar) virtualboxed Xubuntu_16.10 - no bug either! So in "real" Xubuntu the bug appears, but in virtualboxed one (the *same* Xubuntu) does not.
When I do scrolling (in a TotalCmd filecontent-comparison window), (in the real Xubuntu) Xorg consumes about 23% CPU, which I guess probably means almost 100% of one "core" (or "cpu thread" or what). I have a 64bit Samsung laptop, with i915 video. I will try to attach output of 'lspci -vvnn' and two /var/log/Xorg.0.log* files. $ rdesktop rdesktop: A Remote Desktop Protocol client. Version 1.8.3. Copyright (C) 1999-2011 Matthew Chapman et al. [...] The command line was: $ rdesktop -u xxuserxx -k hu -g 1500x900 -a 16 -z -P -r clipboard:CLIPBOARD xx.ip.addr.xx ** Attachment added: "lspci_out" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/378958/+attachment/4803584/+files/lspci_out -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/378958 Title: xorg 100% cpu when scrolling in rdesktop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/378958/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
