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I have a laptop running Manjaro 15.12 that was working perfectly before I came back from my holidays. The computer is four years old but it has an (old) Intel i7 and 8GB of RAM.
Now it lags in a weird way. When doing something the system kind of freezes for a couple of seconds (any task like surfing the internet or writing a text file) from time to time but I can still move the cursor without any trouble. At first I thought that there might be some process using up too much resources but when I looked the output of top both the CPU and the memory were not being used. I also changed the HD drive a few months ago but I don't know if this information is helpful or not.
Why can this be?
EDIT: This is the output of smartctl (long run):
smartctl 6.4 2015-06-04 r4109 [x86_64-linux-4.1.15-1-MANJARO] (local build)
Copyright (C) 2002-15, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
The previous HD gave me errors when running smarctl and that was the reason of changing it for a new one.
A. A.
Posted 2016-01-09T22:29:55.690
Reputation: 101
2Sounds like a HDD health issue. Run a tool that checks the S.M.A.R.T data and report back – Ramhound – 2016-01-09T22:33:30.850
1If it was Windows I would suggest rebooting it 3 times in a row.... – Moab – 2016-01-09T22:42:04.007
1Just wipe and re-install - Get an SSD to replace to aging HDD. Job done! – JohnnyVegas – 2016-01-09T23:48:48.697
@Ramhound I just added that data. smartctl doesn't report anything unusual. – A. A. – 2016-01-10T17:33:58.760
@JohnnyVegas I changed the HDD a few months back and smartctl doesn't find any problem in the HDD that's why I was wondering if the lag might be caused by anything else. – A. A. – 2016-01-11T16:15:00.270
The only things I can suggest to do now are to check that your hdd BIOS setting for SATA is on AHCI not LEGACY or IDE. If ok check for bios updates and possibly change the ram? – JohnnyVegas – 2016-01-12T23:34:23.857
reset bios to defaults as well, and then check the sata settings. if on ahci, boot then see if the lag disappears. Not having enough ram allocated to the video card can also cause lag. – JohnnyVegas – 2016-01-12T23:35:44.220