Tommy Trussell, thank you for reporting this and helping make Ubuntu better.
To see if this is already resolved, could you please test http://cdimage.ubuntu.com/daily-live/current/ (x64, not 32-bit) and advise to the results? ** Description changed: - Same defect as old Bug #318325 - same hardware as Bug #1333697 - - System : Ubuntu 15.10 "wily" - GPU : ATI express X1100 - Video driver : radeon - Steps to reproduce : - choose suspend - resume from ram => the screen will flicker while CPU activity is not high - workaround : - - launch an infinite loop that consume CPU : $ while true; do echo >/dev/null; done - => the screen won't flicker while the CPU is busy - - Launching this old laptop from a live "wily" 15.10 desktop image, but it - was running up-to-date "trusty" 14.04. I even updated to the latest HWE - kernel & packages just in case there's been some change but it still has - the bug. - - [On a lark I found a git repository for hacking the radeon driver but I - don't even know C so I would need a lot of assistance to figure THAT - out.] + WORKAROUND: Launch an infinite loop that consume CPU : + $ while true; do echo >/dev/null; done ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: xorg 1:7.7+7ubuntu4 ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3 Uname: Linux 4.2.0-16-generic i686 .tmp.unity.support.test.0: - + ApportVersion: 2.19.1-0ubuntu3 Architecture: i386 CasperVersion: 1.365 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: Wed Mar 2 20:00:24 2016 DistUpgraded: Fresh install DistroCodename: wily DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: - Advanced Micro Devices, Inc. [AMD/ATI] RS482M [Mobility Radeon Xpress 200] [1002:5975] (prog-if 00 [VGA controller]) - Subsystem: Acer Incorporated [ALI] Device [1025:009f] + Advanced Micro Devices, Inc. [AMD/ATI] RS482M [Mobility Radeon Xpress 200] [1002:5975] (prog-if 00 [VGA controller]) + Subsystem: Acer Incorporated [ALI] Device [1025:009f] LiveMediaBuild: Ubuntu 15.10 "Wily Werewolf" - Release i386 (20151021) Lsusb: - Bus 001 Device 002: ID 0951:160b Kingston Technology - Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub - Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub - Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub + Bus 001 Device 002: ID 0951:160b Kingston Technology + Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub + Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub + Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: Acer Aspire 5100 PccardctlIdent: - Socket 0: - no product info available + Socket 0: + no product info available PccardctlStatus: - Socket 0: - no card + Socket 0: + no card ProcEnviron: - TERM=xterm-256color - PATH=(custom, no user) - XDG_RUNTIME_DIR=<set> - LANG=en_US.UTF-8 - SHELL=/bin/bash + TERM=xterm-256color + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=en_US.UTF-8 + SHELL=/bin/bash ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true file=/cdrom/preseed/username.seed boot=casper initrd=/casper/initrd.lz quiet splash --- BOOT_IMAGE=/casper/vmlinuz SourcePackage: xorg UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/22/2008 dmi.bios.vendor: Acer dmi.bios.version: V3.13 dmi.board.name: Navarro dmi.board.vendor: Acer dmi.board.version: N/A dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: N/A dmi.modalias: dmi:bvnAcer:bvrV3.13:bd08/22/2008:svnAcer:pnAspire5100:pvrV3.13:rvnAcer:rnNavarro:rvrN/A:cvnAcer:ct10:cvrN/A: dmi.product.name: Aspire 5100 dmi.product.version: V3.13 dmi.sys.vendor: Acer version.compiz: compiz 1:0.9.12.2+15.10.20151015-0ubuntu1 version.libdrm2: libdrm2 2.4.64-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4 version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3 xserver.bootTime: Wed Mar 2 13:50:49 2016 xserver.configfile: default xserver.errors: - + xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.17.2-1ubuntu9 xserver.video_driver: radeon ** Tags added: latest-bios-3.13 ** Changed in: xorg (Ubuntu) Importance: Undecided => Medium ** Changed in: xorg (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1552417 Title: [X1100] Flickering after resume from RAM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1552417/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp