Created attachment 993620 [details] screen shot of disappear characters Description of problem: This is so bizzar. I have no idea if this is xorg, an xorg driver, gnome, or maybe even some sort of virus. I was viewing my e-mail and I opened an e-mail where a large portion of the characters where missing. Then I noticed characters missing on other parts of the screen. Even a few characters where missing from my IRC window header. As I moved the mouse it became worse. When I opened the screen shot tool, so many characters where missing I couldn't tell what the options where, so I took a full screen shot and hoped it would save somewhere I could find it. Last time I saw this type of thing was about 24 years ago. That was at CERN when everyone would use 'xhost +', so other students would frequently play pranks where they would launch screen savers like xmelt. The xorg implementation is fairly secure, and I don't really know any pranksters that would be trying such a thing. But if there is a screen saver that can have this behaviour, I'll certainly look to see if it is installed on my system. Version-Release number of selected component (if applicable): $ rpm -qa |egrep '(xorg|gnome)' gnome-icon-theme-symbolic-3.12.0-2.fc21.noarch gnome-abrt-1.0.0-1.fc21.x86_64 heisenbug-backgrounds-gnome-20.0.0-2.fc21.noarch xorg-x11-xauth-1.0.9-2.fc21.x86_64 NetworkManager-vpnc-gnome-0.9.9.0-6.git20140428.fc21.x86_64 gnome-maps-3.14.2-1.fc21.x86_64 gnome-system-monitor-3.14.1-1.fc21.x86_64 gnome-shell-extension-window-list-3.14.3-1.fc21.noarch gnome-video-effects-0.4.1-2.fc21.noarch gnome-epub-thumbnailer-1.4-4.fc21.x86_64 gnome-dictionary-3.14.2-1.fc21.x86_64 gnome-software-3.14.2-2.fc21.x86_64 abrt-addon-xorg-2.3.0-3.fc21.x86_64 gnome-themes-standard-3.14.2.2-1.fc21.x86_64 NetworkManager-openvpn-gnome-0.9.9.0-3.git20140128.fc21.x86_64 gnome-user-share-3.14.0-2.fc21.x86_64 gnome-session-3.14.0-1.fc21.x86_64 gnome-user-docs-3.14.2-1.fc21.noarch gnome-logs-3.14.2-3.fc21.x86_64 gnome-shell-extension-user-theme-3.14.3-1.fc21.noarch gnome-python2-canvas-2.28.1-15.fc21.x86_64 xorg-x11-drv-qxl-0.1.2-1.fc21.x86_64 NetworkManager-pptp-gnome-0.9.8.2-6.fc21.x86_64 gnome-screenshot-3.14.0-1.fc21.x86_64 gnome-shell-extension-apps-menu-3.14.3-1.fc21.noarch gnome-shell-3.14.3-1.fc21.x86_64 gnome-calculator-3.14.1-1.fc21.x86_64 gnome-python2-2.28.1-15.fc21.x86_64 gnome-keyring-pam-3.14.0-1.fc21.x86_64 gnome-classic-session-3.14.3-1.fc21.noarch gnome-session-xsession-3.14.0-1.fc21.x86_64 xorg-x11-xinit-1.3.4-3.fc21.x86_64 gnome-tweak-tool-3.14.2-1.fc21.noarch gnome-shell-extension-launch-new-instance-3.14.3-1.fc21.noarch gnome-sound-recorder-3.14.2-1.fc21.noarch gnome-bluetooth-3.14.0-3.fc21.x86_64 gnome-menus-3.13.3-2.fc21.x86_64 xorg-x11-drv-vmware-13.0.2-5.20140613git82c9b0c.fc21.x86_64 xorg-x11-drv-wacom-0.25.0-2.fc21.x86_64 gnome-icon-theme-3.12.0-2.fc21.noarch gnome-mplayer-common-1.0.9-2.fc21.x86_64 gnome-clocks-3.14.1-2.fc21.x86_64 xorg-x11-server-Xorg-1.16.2.901-1.fc21.x86_64 gnome-contacts-3.14.2-1.fc21.x86_64 gnome-bluetooth-libs-3.14.0-3.fc21.x86_64 gnome-settings-daemon-3.14.2-2.fc21.x86_64 xorg-x11-drv-evdev-2.9.0-3.fc21.x86_64 xorg-x11-drv-modesetting-0.9.0-2.fc21.x86_64 desktop-backgrounds-gnome-21.0.0-0.fc21.noarch xorg-x11-font-utils-7.5-25.fc21.x86_64 xorg-x11-drv-ati-7.5.0-1.fc21.x86_64 gnome-shell-extension-places-menu-3.14.3-1.fc21.noarch xorg-x11-drv-synaptics-1.8.0-9.fc21.x86_64 f21-backgrounds-gnome-21.1.0-1.fc21.noarch xorg-x11-drv-vmmouse-13.0.0-13.fc21.x86_64 xorg-x11-drv-fbdev-0.4.3-19.fc21.x86_64 gnome-icon-theme-legacy-3.12.0-2.fc21.noarch xorg-x11-drv-intel-2.99.916-3.20141117.fc21.x86_64 xorg-x11-fonts-Type1-7.5-14.fc21.noarch xorg-x11-drv-openchrome-0.3.3-12.fc21.x86_64 xorg-x11-drv-vesa-2.3.2-19.fc21.x86_64 gnome-mplayer-1.0.9-2.fc21.x86_64 gnome-online-accounts-3.14.3-1.fc21.x86_64 libgnome-keyring-3.12.0-4.fc21.x86_64 gnome-python2-gnomekeyring-2.32.0-20.fc21.x86_64 gnome-python2-desktop-2.32.0-20.fc21.x86_64 gnome-icon-theme-extras-3.12.0-2.fc21.noarch xorg-x11-xkb-utils-7.7-12.fc21.x86_64 gnome-documents-3.14.2-1.fc21.x86_64 gnome-terminal-3.14.2-2.fc21.x86_64 gnome-weather-3.14.1-1.fc21.noarch gnome-font-viewer-3.14.0-1.fc21.x86_64 gnome-shell-extension-common-3.14.3-1.fc21.noarch gnome-color-manager-3.14.2-1.fc21.x86_64 libgnomecanvas-2.30.3-9.fc21.x86_64 xorg-x11-server-utils-7.7-10.fc21.x86_64 gnome-shell-extension-drive-menu-3.14.3-1.fc21.noarch gnome-getting-started-docs-3.14.1-1.fc21.noarch xorg-x11-server-common-1.16.2.901-1.fc21.x86_64 schroedinger-cat-backgrounds-gnome-18.91.0-3.fc21.noarch gnome-packagekit-3.14.2-1.fc21.x86_64 xorg-x11-utils-7.5-16.fc21.x86_64 gnome-online-miners-3.14.1-1.fc21.x86_64 gnome-disk-utility-3.14.0-1.fc21.x86_64 gnome-js-common-0.1.2-11.fc21.noarch gnome-initial-setup-3.14.2.1-2.fc21.x86_64 gnome-photos-3.14.2-1.fc21.x86_64 libgnomekbd-3.6.0-6.fc21.x86_64 gnome-shell-extension-alternate-tab-3.14.3-1.fc21.noarch gnome-keyring-3.14.0-1.fc21.x86_64 xorg-x11-drv-nouveau-1.0.11-1.fc21.x86_64 gnome-backgrounds-3.14.1-1.fc21.noarch gnome-boxes-3.14.2-2.fc21.x86_64 gnome-desktop3-3.14.2-2.fc21.x86_64 How reproducible: I do not know if this will happen again. Occassionally in Fedora 21 I'm seeing black bands appear across the left side of my screen, like some sort of memory buffer bug, but that seems to be something completely different... Steps to Reproduce: 1. Unknown 2. 3. Actual results: Expected results: Additional info:
Created attachment 993621 [details] This log file might provide useful information...
I forgot to mention, logging out and logging back in cleared the issue.
I have started getting this problem (consistently) when I upgraded to Fedora 22. Filed bug 1236402 on it.
This message is a reminder that Fedora 21 is nearing its end of life. Approximately 4 (four) weeks from now Fedora will stop maintaining and issuing updates for Fedora 21. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a Fedora 'version' of '21'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora 21 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora, you are encouraged change the 'version' to a later Fedora version prior this bug is closed as described in the policy above. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete.
Fedora 21 changed to end-of-life (EOL) status on 2015-12-01. Fedora 21 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.