Ubuntu 19.10 here. UI, including mouse, freezes on copying big files within the same SSD, but not with HDD. The suggested change of
vm.dirty_background_ratio = 5 vm.dirty_ratio = 10 doesn't help. Samsung SSD 850 EVO 250GB (EMT02B6Q), SATA, not hotplug. SMART overall-health self-assessment test result: PASSED ATA Version is: ACS-2, ATA8-ACS T13/1699-D revision 4c SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s) The drive has two ext4 partitions: for the system root and for media files. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1208993 Title: Ubuntu slows down and hangs while copying file from/to USB Status in linux package in Ubuntu: Confirmed Bug description: Hi While copying many and large files to and from a USB drive, the system becomes incredibly slow and sometimes hangs. I watched the system monitor while it was running slowly but cpu was not above 50% at any time, the same for memory. I'm using the "WD my passport" HD with a USB3 port of my "ASUS K55VD" laptop. Description: Ubuntu 13.04 Release: 13.04 nautilus: Installed: 1:3.6.3-0ubuntu16 Candidate: 1:3.6.3-0ubuntu16 Version table: *** 1:3.6.3-0ubuntu16 0 500 http://ubuntu-archive.mirror.nucleus.be/ raring/main amd64 Packages 100 /var/lib/dpkg/status Steps to reproduce: 1) Aquire many large files (like your totally legit moviecollection) 2) Copy files to external HD 3) Open your browser and be sad when your system becomes incredibly slow after a few minutes This is my first bugreport so if I'm missing something, please tell me. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: nautilus 1:3.6.3-0ubuntu16 ProcVersionSignature: Ubuntu 3.8.0-27.40-generic 3.8.13.4 Uname: Linux 3.8.0-27-generic x86_64 ApportVersion: 2.9.2-0ubuntu8.1 Architecture: amd64 Date: Tue Aug 6 22:56:34 2013 EcryptfsInUse: Yes ExecutablePath: /usr/bin/nautilus GsettingsChanges: b'org.gnome.nautilus.window-state' b'geometry' b"'656x715+154+151'" b'org.gnome.nautilus.window-state' b'maximized' b'true' InstallationDate: Installed on 2013-05-31 (67 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MarkForUpload: True SourcePackage: nautilus UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1208993/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp