Enabling OpenGL rendering also solved this for me (the attached file shows which checkbox must be enabled/marked/checked, at the LibreOffice GUI).
I'm running LibreOffice 5.1.4.2 on a 64-bit XUbuntu 16.04 "Xenial Xerus" system. My computer is a Dell laptop (Dell Inspiron 5548) which has hybrid graphics (it has two GPU - Graphics Processing Units): GPU 1 is an Intel Broadwell-U Integrated Graphics (it's embedded into the i7 CPU/processor), while GPU 2 is an Advanced Micro Devices [AMD/ATI] Topaz XT [Radeon R7 M260/M265] (it's a PCI Express 3.0 graphics card). *Ubuntu (Ubuntu, XUbuntu, KUbuntu...) 16.04 distros ship with kernel 4.4.X, which has a bug that causes malfunction of the kernel with the open source "amdgpu" and "radeon" graphics drivers (they superseded the proprietary "fglrx" driver by AMD). See bug #1608042 (https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video- amdgpu/+bug/1608042). Hence, if your computer has any AMD GPU (despite of your computer having hybrid graphics or not), and if your distro is *Ubuntu 16.04 and you already installed MESA (OpenGL support for Linux) and activated OpenGL rendering in LibreOffice, but the issue remais, it is likely that your system is affected by the kernel/AMD bug. It's thus recommended to download and install a further stable kernel, like e.g. kernel v4.7.2: - For 64-bit *Ubuntu, download these three files: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7.2/linux-headers-4.7.2-040702_4.7.2-040702.201608201334_all.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7.2/linux-headers-4.7.2-040702-generic_4.7.2-040702.201608201334_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7.2/linux-image-4.7.2-040702-generic_4.7.2-040702.201608201334_amd64.deb - For 32-bit *Ubuntu, download these three files: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7.2/linux-headers-4.7.2-040702_4.7.2-040702.201608201334_all.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7.2/linux-headers-4.7.2-040702-generic_4.7.2-040702.201608201334_i386.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7.2/linux-image-4.7.2-040702-generic_4.7.2-040702.201608201334_i386.deb ...then open a shell terminal window, cd (change directory) into the folder where you donwloaded those DEB packages into, then install the packages and restart your system. For instance, if you downloaded those DEB packages into your downloads folder (/home/your-username/Downloads), then this command will cd into your downloads folder, install the downloaded packages and restart your system (your password will be asked by the shell): cd ~/Downloads ; sudo dpkg -i linux-*.deb ; telinit 6 ** Attachment added: "Activate OpenGL rendering." https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1575000/+attachment/4738500/+files/opengl_rendering.jpg -- 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/1575000 Title: font glyph corruption on dialog box Status in X.Org X server: Unknown Status in xorg-server package in Ubuntu: Fix Released Status in xorg-server source package in Xenial: Confirmed Bug description: [Impact] * This makes it impossible to read some text (usually yes/no questions) in Libreoffice. This makes it more difficult to use LibreOffice on AMD graphics. [Test Case] 1. Open for instance LibreOffice Writer 2. Copy some text to the clipboard 3. Open the Paste Special dialog with CTRL-SHIFT-V [Regression Potential] This modifies glamor to be used less. There might be a potential for a performance hit in other cases? [Original Report] I get a font glyph corruption in various dialog boxes in libreoffice. This happens using the following graphic configuration: *-display description: VGA compatible controller product: Bonaire [FirePro W5100] vendor: Advanced Micro Devices, Inc. [AMD/ATI] physical id: 0 bus info: pci@0000:03:00.0 version: 00 width: 64 bits clock: 33MHz capabilities: vga_controller bus_master cap_list rom configuration: driver=radeon latency=0 I don't see this in other graphics (NVIDIA, INTEL). Steps to reproduce: 1. Open for instance LibreOffice Writer 2. Copy some text to the clipboard 3. Open the Paste Special dialog with CTRL-SHIFT-V I attach a screenshot of the corrupted font. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xserver-xorg-video-radeon 1:7.7.0-1 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 Uname: Linux 4.4.0-21-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Tue Apr 26 09:23:41 2016 DistUpgraded: 2016-03-11 12:35:09,412 DEBUG enabling apt cron job DistroCodename: xenial DistroVariant: ubuntu DkmsStatus: virtualbox, 5.0.18, 4.4.0-18-generic, x86_64: installed virtualbox, 5.0.18, 4.4.0-21-generic, x86_64: installed ExtraDebuggingInterest: Yes GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Bonaire [FirePro W5100] [1002:6649] (prog-if 00 [VGA controller]) Subsystem: Dell Bonaire [FirePro W5100] [1028:230c] InstallationDate: Installed on 2015-10-17 (191 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: Dell Inc. Precision Tower 7810 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic root=UUID=63c3c29d-24d9-4ecb-8511-3f2291792bc5 ro quiet splash vt.handoff=7 SourcePackage: xserver-xorg-video-ati UpgradeStatus: Upgraded to xenial on 2016-03-11 (45 days ago) dmi.bios.date: 04/14/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: A07 dmi.board.name: 0GWHMW dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 7 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA07:bd04/14/2015:svnDellInc.:pnPrecisionTower7810:pvr01:rvnDellInc.:rn0GWHMW:rvrA00:cvnDellInc.:ct7:cvr: dmi.product.name: Precision Tower 7810 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Mon Apr 25 08:20:34 2016 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.18.3-1ubuntu2 xserver.video_driver: radeon To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1575000/+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
