Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.
** Information type changed from Public Security to Public -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to unity-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1644959 Title: keyboard setting interferes with all other shortcuts Status in unity-control-center package in Ubuntu: New Bug description: Security-related part of the issue: After going into 'system settings > keyboard > shortcuts > typing', and changing the 'compose key' setting from 'Disabled' to 'Left Control', it messes up ALL keyboard shortcuts in ALL windows. This means that I cannot terminate a command in terminal (because the only way to terminate something is to hit control+c). This is a security risk because if I need something to terminate, I can't terminate it. I also cannot lock this computer using control + alt + l. the general issue: I cannot use this operating system without a mouse, after doing thing change in settings. All operating systems should be usable by keyboard alone. After changing this setting, I should be able to use other keyboard shortcuts (like SUPER (dash) and alt + tab (switch windows), especially since they're not associated with the control key). The compose key doesn't even work, with the setting 'left control'. The user SHOULD have the liberty to choose whatever key combination configuration they please (instead of being confined to the limited drop-down options). If you can't get the key combination thing to work, you should try adding an option for something like 'left control + left shift' for the compose key combination. Also, I keep my keyboard scroll lock turned on (so my keyboard will light up), but after changing this setting it turned off, and I could not turn it back on by pressing the scroll lock button (I do this by typing "xmodmap -e 'add mod3 = Scroll_Lock'" in terminal every time I restart my computer and login, then pressing the scroll lock key on my keyboard). information: results from typing 'lsb_release -rd': Description: Ubuntu 16.04.1 LTS Release: 16.04 results from typing 'apt-cache policy unity-control-center': unity-control-center: Installed: 15.04.0+16.04.20160705-0ubuntu1 Candidate: 15.04.0+16.04.20160705-0ubuntu1 Version table: *** 15.04.0+16.04.20160705-0ubuntu1 500 500 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages 100 /var/lib/dpkg/status 15.04.0+16.04.20160413-0ubuntu1 500 500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages results from typing 'sudo dmidecode -t 2': # dmidecode 3.0 Getting SMBIOS data from sysfs. SMBIOS 2.7 present. Handle 0x0002, DMI type 2, 15 bytes Base Board Information Manufacturer: Gigabyte Technology Co., Ltd. Product Name: 970A-UD3P Version: x.x Serial Number: To be filled by O.E.M. Asset Tag: To be filled by O.E.M. Features: Board is a hosting board Board is replaceable Location In Chassis: To be filled by O.E.M. Chassis Handle: 0x0003 Type: Motherboard Contained Object Handles: 0 my processor (after typing 'lscpu'): Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 8 On-line CPU(s) list: 0-7 Thread(s) per core: 2 Core(s) per socket: 4 Socket(s): 1 NUMA node(s): 1 Vendor ID: AuthenticAMD CPU family: 21 Model: 2 Model name: AMD FX(tm)-8320 Eight-Core Processor Stepping: 0 CPU MHz: 1400.000 CPU max MHz: 3500.0000 CPU min MHz: 1400.0000 BogoMIPS: 7032.84 Virtualization: AMD-V L1d cache: 16K L1i cache: 64K L2 cache: 2048K L3 cache: 8192K NUMA node0 CPU(s): 0-7 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb cpb hw_pstate vmmcall bmi1 arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: unity-control-center 15.04.0+16.04.20160705-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-47.68-generic 4.4.24 Uname: Linux 4.4.0-47-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CurrentDesktop: Unity Date: Fri Nov 25 21:48:40 2016 ExecutablePath: /usr/bin/unity-control-center InstallationDate: Installed on 2016-10-24 (33 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) ProcEnviron: PATH=(custom, user) SHELL=/bin/bash LANG=en_US.UTF-8 LANGUAGE=en_US XDG_RUNTIME_DIR=<set> SourcePackage: unity-control-center UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-control-center/+bug/1644959/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
