I've noticed this problem also on slower systems of mine (an Acer Chromebook C720 for instance). This leads me to believe that system speed (or perhaps graphics subsystem speed?) is the culprit here, as other systems work with flurry just fine.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-nouveau in Ubuntu. https://bugs.launchpad.net/bugs/1855220 Title: xscreensaver is choppy on lubuntu 20.04 daily qa-test (flurry) Status in xserver-xorg-video-nouveau package in Ubuntu: New Bug description: Lubuntu 20.04 daily QA-test on hp dc7700 (c2d-e6320, 5gb, nvidia quadro nvs 290) Displays have been adjusted to my setup (one above the other) but I doubt this is an issue I suspended system, waited, pressed ESC to wake & it resumed to xscreensaver, but 'flurry' was chopped and showing white/black patches on display as if glitching... I touched mouse & my session removed. opened xscreensaver & preview - yep glitch there too... changed to 'fliptext' & no issues, but flurry is very jerky with image switching to almost-blocky-bad-signal (I think it's alternating between showing something else, text; it seems to vary on what I've had on screen before screensaver is loaded & continuing to show xscreensaver..) attempts to screengrab with delay have failed (just capturing black screen).. `lshw -C video` reports I'm using nouveau. This issue may not relate to 'xserver-xorg-video-nouveau', but I suspect it's there. I've performed this test a number of times on various boxes without issue (will do so again once I shutdown this). ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xserver-xorg-video-nouveau 1:1.0.16-1 ProcVersionSignature: Ubuntu 5.3.0-18.19-generic 5.3.1 Uname: Linux 5.3.0-18-generic x86_64 ApportVersion: 2.20.11-0ubuntu9 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperVersion: 1.432 CompositorRunning: None CurrentDesktop: LXQt Date: Thu Dec 5 04:04:51 2019 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: NVIDIA Corporation G86 [Quadro NVS 290] [10de:042f] (rev a1) (prog-if 00 [VGA controller]) Subsystem: NVIDIA Corporation G86 [Quadro NVS 290] [10de:0492] LiveMediaBuild: Lubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20191204) MachineType: Hewlett-Packard HP Compaq dc7700 Small Form Factor ProcKernelCmdLine: file=/cdrom/preseed/username.seed initrd=/casper/initrd quiet splash --- SourcePackage: xserver-xorg-video-nouveau UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/30/2006 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 786E1 v01.05 dmi.board.name: 0A54h dmi.board.vendor: Hewlett-Packard dmi.chassis.type: 4 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr786E1v01.05:bd08/30/2006:svnHewlett-Packard:pnHPCompaqdc7700SmallFormFactor:pvr:rvnHewlett-Packard:rn0A54h:rvr:cvnHewlett-Packard:ct4:cvr: dmi.product.family: 103C_53307F dmi.product.name: HP Compaq dc7700 Small Form Factor dmi.product.sku: ET090AV dmi.sys.vendor: Hewlett-Packard version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.100-4 version.libgl1-mesa-dri: libgl1-mesa-dri 19.2.4-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.5+git20191008-0ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20190815-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1855220/+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
