Yesterday I ran the latest updates from the Update Manager. This included a kernel update (to 188.8.131.52.56) and some other large updates (eg LibreOffice). But - having read the forum posts about problems with "mesa" and "xfwm4" - I deliberately unchecked the latest updates offered on those two items only, and went ahead with all the other updates.
Today my system seems noticeably more sluggish. Regular apps (like Firefox....) seem slower to open. In particular, the Thunar File Manager seems to be seriously affected. Using it is like wading through treacle. I have been doing some routine tidying-up, which involves copying and moving files between folders or on to an external drive, and sometimes renaming them. The right-click drop-down menus open, but the commands (eg 'copy' or 'rename') take ages - like up to 10 seconds - to respond.
More worrying, if I have two File Manager windows open and no other apps running (eg to cut and paste files quickly from one location to another) sometimes one or both windows hang or freeze for a while; and when I attempt to minimise, or switch from one window to another, the display only partially disappears, and I get a patchwork screen with only part of the window showing and some black squares or spaces.
These all strike me as the symptoms of a CPU, or RAM, or graphics-support which is struggling or is overloaded and can't cope. I have only previously seen such behaviour when trying to run a modern and resource-hungry OS with demanding graphics, on an ancient and feeble computer. Yet my laptop is surely capable of running Mint 19.1's Thunar without seizing up or freezing the screen? Task Manager doesn't suggest that either CPU (<10%) or memory (<11%) or swap (0%) are heavily loaded.
Here are the system details from
inxi - Fxzin the terminal:
Code: Select all
brian@brian-samsungRF511:~$ inxi -Fxz System: Host: brian-samsungRF511 Kernel: 4.15.0-54-generic x86_64 bits: 64 compiler: gcc v: 7.4.0 Desktop: Xfce 4.12.3 Distro: Linux Mint 19.1 Tessa base: Ubuntu 18.04 bionic Machine: Type: Laptop System: SAMSUNG product: RF511/RF411/RF711 v: 14HX serial: <filter> Mobo: SAMSUNG model: RF511/RF411/RF711 v: 14HX serial: <filter> BIOS: American Megatrends v: 14HX.M040.20111020.SSH date: 10/20/2011 Battery: ID-1: BAT1 charge: 43.0 Wh condition: 54.4/57.7 Wh (94%) model: SAMSUNG Electronics status: Unknown CPU: Topology: Dual Core model: Intel Core i5-2450M bits: 64 type: MT MCP arch: Sandy Bridge rev: 7 L2 cache: 3072 KiB flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 19956 Speed: 798 MHz min/max: 800/3100 MHz Core speeds (MHz): 1: 799 2: 798 3: 798 4: 798 Graphics: Device-1: Intel 2nd Generation Core Processor Family Integrated Graphics vendor: Samsung Co driver: i915 v: kernel bus ID: 00:02.0 Display: x11 server: X.Org 1.19.6 driver: modesetting unloaded: fbdev,vesa resolution: 1366x768~60Hz OpenGL: renderer: Mesa DRI Intel Sandybridge Mobile v: 3.3 Mesa 18.2.8 direct render: Yes Audio: Device-1: Intel 6 Series/C200 Series Family High Definition Audio vendor: Samsung Co driver: snd_hda_intel v: kernel bus ID: 00:1b.0 Sound Server: ALSA v: k4.15.0-54-generic Network: Device-1: Broadcom and subsidiaries BCM4313 802.11bgn Wireless Network Adapter vendor: Wistron NeWeb driver: bcma-pci-bridge v: N/A port: e040 bus ID: 01:00.0 Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: Samsung Co driver: r8169 v: 2.3LK-NAPI port: c000 bus ID: 02:00.0 IF: enp2s0 state: up speed: 100 Mbps duplex: full mac: <filter> IF-ID-1: wlp1s0b1 state: down mac: <filter> Drives: Local Storage: total: 2.05 TiB used: 249.32 GiB (11.9%) ID-1: /dev/sda vendor: Hitachi model: HTS547575A9E384 size: 698.64 GiB ID-2: /dev/sdb type: USB model: TO Exter nal USB 3.0 size: 465.76 GiB ID-3: /dev/sdc type: USB vendor: Seagate model: Expansion size: 931.51 GiB Partition: ID-1: / size: 53.89 GiB used: 16.57 GiB (30.8%) fs: ext4 dev: /dev/sda8 ID-2: swap-1 size: 8.00 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sda5 Sensors: System Temperatures: cpu: 47.0 C mobo: 47.0 C Fan Speeds (RPM): N/A Info: Processes: 206 Uptime: 3m Memory: 7.70 GiB used: 766.4 MiB (9.7%) Init: systemd runlevel: 5 Compilers: gcc: 7.4.0 Shell: bash v: 4.4.20 inxi: 3.0.27
I assume I have the options of either reverting to a previous configuration (I took a Timeshift snapshot before yesterday's update to the kernel etc) or rebooting and choosing in Grub to use a different - older - kernel. But before taking either of those routes I wondered if anyone else had encountered similar issues and/or might be able to spot why my system appears to be struggling.