Linux Mint Forums

Posted: **Tue Aug 27, 2019 8:17 am**

Hi guys,
I don't know if it is somehow related to the latest kernel upgrades, but all of a sudden my 18.3 Cinnamon desktop has become quite slow and jerky, with the mouse moving in a really unpleasant way. Is anybody experiencing anything similar? At first I thought that it was Firefox' fault (it took ten minutes to write a mail in Gmail this morning...), but now I'm not so sure because the problem persists even after closing Firefox.

The weird thing is that if I launch the system monitor nothing is going beyond 15-20% of CPU use, in spite of that the mouse moves jerkily and characters are inserted two-three seconds after I type them in (if I go too fast they're not inserted at all).

Here's the output of inxi -Fxz, thanks for any tip!

Code: Select all

System:    Host: Wodan Kernel: 4.15.0-58-generic x86_64 (64 bit gcc: 5.4.0)
           Desktop: Cinnamon 3.6.7 (Gtk 3.18.9-1ubuntu3.3)
           Distro: Linux Mint 18.3 Sylvia
Machine:   Mobo: ASUSTeK model: H110M-C v: Rev X.0x
           Bios: American Megatrends v: 0508 date: 10/19/2015
CPU:       Quad core Intel Core i5-6500 (-MCP-) cache: 6144 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 25536
           clock speeds: max: 3600 MHz 1: 800 MHz 2: 800 MHz 3: 800 MHz
           4: 800 MHz
Graphics:  Card: NVIDIA GK107 [GeForce GT 740] bus-ID: 01:00.0
           Display Server: X.Org 1.18.4 drivers: nvidia (unloaded: fbdev,vesa,nouveau)
           Resolution: 1920x1080@60.00hz, 1920x1080@60.00hz
           GLX Renderer: GeForce GT 740/PCIe/SSE2
           GLX Version: 4.5.0 NVIDIA 384.130 Direct Rendering: Yes
Audio:     Card-1 NVIDIA GK107 HDMI Audio Controller
           driver: snd_hda_intel bus-ID: 01:00.1
           Card-2 Intel 100 Series/C230 Series Family HD Audio Controller
           driver: snd_hda_intel bus-ID: 00:1f.3
           Sound: Advanced Linux Sound Architecture v: k4.15.0-58-generic
Network:   Card: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
           driver: r8169 v: 2.3LK-NAPI port: d000 bus-ID: 05:00.0
           IF: enp5s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
Drives:    HDD Total Size: 2240.5GB (74.9% used)
           ID-1: /dev/sda model: WDC_WD20EFRX size: 2000.4GB
           ID-2: /dev/sdb model: KINGSTON_SV300S3 size: 240.1GB
Partition: ID-1: / size: 22G used: 18G (84%) fs: ext4 dev: /dev/sdb2
           ID-2: /home size: 40G used: 33G (88%) fs: ext4 dev: /dev/sda8
           ID-3: swap-1 size: 4.86GB used: 0.00GB (0%) fs: swap dev: /dev/sda12
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 29.8C mobo: 27.8C gpu: 0.0:44C
           Fan Speeds (in rpm): cpu: 0
Info:      Processes: 262 Uptime: 6:07 Memory: 7108.3/15963.4MB
           Init: systemd runlevel: 5 Gcc sys: 5.4.0
           Client: Shell (bash 4.3.481) inxi: 2.2.35

Posted: **Tue Aug 27, 2019 8:20 am**

Try this:
https://easylinuxtipsproject.blogspot.c ... html#ID5.1
(item 5.1)

Written for Mint 19.2, but should work in your older Cinnamon as well.

Posted: **Tue Aug 27, 2019 11:21 am**

Thanks for the tip! I tried all of the steps recommended by that article, let's see if it gets better.

What buggers me is that this happened abruptly, my desktop was fast and smooth just a few weeks ago. Also, while I only have decent CPU and graphic adapter, I got plenty of memory and the root partition lives on an SSD disk: 18.* has always been good for me.

Best wishes,

R

Posted: **Wed Aug 28, 2019 2:38 am**

Unfortunately the issue is coming back every now and then: nothing as bad as described in my original post (sloooow appearance of typed characters, erratic and unusable mouse cursor), but still there especially when using Firefox. I will try the hardware acceleration feature, switching it off in FF, but again everything worked perfectly not so long ago...

Any ideas, everybody? Will test 19.2 to see if it's any better, but it got a couple of show-stoppers for me.

TY,

R

Posted: **Wed Aug 28, 2019 4:02 am**

Maybe related: your partitions are getting too full. A Linux partition should always have 20 - 25 % free space, so it shouldn't be filled over 75 - 80 %. This in order to prevent file fragmentation:
https://easylinuxtipsproject.blogspot.c ... 1.html#ID4
(item 4)

Firefox: check the add-ons / extensions that you've installed in it. Those are the usual suspects.

Posted: **Fri Aug 30, 2019 5:55 am**

Maybe that (partitions almost full) is true for the root and home partitions? I have room there, other practically full partitions never bothered me.

I don't have too many extensions in Firefox (I think

and they've been the same for about the last six months now.

Thanks for your tips in any case! The site you link in your signature has lots of information.

R

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