leap15.2 and myoldlaptop=freeze. but linux !leap15.12 - ok

English Install/Boot/Login
1

When a lot of heavy applications are running: evolution, ms teams, firefox, viber:** the system often freezes for 10 … 60 minutes**.
I see - the indicator light of requests to the hard drive is on.
Does not respond to keyboard and mouse.

Now I tried to install ubuntu20.04 on the same laptop.
I work with exactly the same applications and also use them: no freezes !
Less than a second, fading occurred a couple of times a day.

Who can advise - what settings inside ubuntu20.04 to look at in order to try to reproduce them in leap15.2 ?

My old laptop (I know that its specifications are below the minimum recommended Leap15.2):
ext2 and ext4 only. xfce.
Model: Hewlett-Packard Company NX7300 laptop

$ hwinfo --mem 
01: None 00.0: 10102 Main Memory                                
  [Created at memory.74]
  Unique ID: rdCR.CxwsZFjVASF
  Hardware Class: memory
  Model: "Main Memory"
  Memory Range: 0x00000000-0xb679cfff (rw)
  Memory Size: 2 GB + 768 MB
  Config Status: cfg=new, avail=yes, need=no, active=unknown
$ hwinfo --short
cpu:                                                            
 Intel(R) Core(TM)2 CPU         T7400  @ 2.16GHz, 1721 MHz
 Intel(R) Core(TM)2 CPU         T7400  @ 2.16GHz, 1975 MHz
monitor:
 LGPhilipsLCD LCD Monitor
graphics card:
 Intel Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller
 Intel 945 GM
storage:
 Intel 82801GBM/GHM (ICH7-M Family) SATA Controller [AHCI mode]
 Intel 82801G (ICH7 Family) IDE Controller
network:
 eth0   Hewlett-Packard Company NX7300 laptop
 wlan0  Hewlett-Packard Company BCM4311 802.11b/g Wireless LAN Controller
bluetooth:
 HP Bluetooth 2.0 Interface [Broadcom BCM2045]
2

Is the RAM full? You have only 2 GB, 4GB are possible…

https://support.hp.com/si-en/document/c00801207

Do you have a swap partition? Really a HDD, no SSD?

I would try Tumbleweed, just to check.

3

Yes both ( and leap15.2 and ubuntu20.04) used swap
both - swap partition size = 5G
hdd(sata)

4

Maybe try SSH into it from another machine if possible? If it is still responding you could check free memory or hanging processes etc.

5

At the moment of such a freeze in Leap15.2 (at the very beginning) I managed to switch by Ctrl-Alt-F1) (text console).
Entered username: root
After a while, an invitation to enter the password appeared.
I entered “root” password.
After that I waited for a long time. But bash never showed up
:slight_smile:

I am pondering (looking for) what settings differ between ubuntu20.04 and Leap15.2.
Settings that affect the behavior of the system in conditions of insufficient RAM.

6

AFAICS, for the system partition, Ubuntu uses ext4 as the default file system –

  • Did you install the Ubuntu system with Btrfs as the default file system?

[HR][/HR]My thoughts are, that the default openSUSE usage of having Btrfs as the file system on the system partition may have provoked the issue you experienced …

7

Borth (Leap15.2 and Ubuntu20.04) - ext4 ( /boot - ext2, / and /home - ext4. swap - 5G)

8

Just out of curiosity, what’s the GPU on the laptop? I found Ubuntu is typically has a more robust Nouveau that can handle dGPU without freezing.

9
  1. Install 4 GiB memory = 2 + 2.
  2. Use SSD for a system with a big onboard cache.
  3. Lower dedicated video memory volume to 64-256 MiB

Intel Graphics Media Accelerator 950, up to 224 MB shared system memory

  1. Use lightweight DE (not GNOME).
  2. Do not use BTRFS.
  3. You may upgrade CPU to:
  • Core 2 Duo T7700 – 2.40 GHz (4 MB L2, 800 MHz FSB)
  • Core 2 Duo T7600 – 2.33 GHz (4 MB L2, 667 MHz FSB)
  • Core 2 Duo T7500 – 2.20 GHz (4 MB L2, 800 MHz FSB)
  • Core 2 Duo T7400 – 2.16 GHz (4 MB L2, 667 MHz FSB)
  1. Intel Graphics Media Accelerator 950, OpenGL 1.4 - use XRender, not OpenGL 2.0 for compositing (depends on DE).
  2. IMHO with system memory = 4 GiB use swap = 8+ GiB.

Notebook is too old for an ordinary desktop usage. Try Light-weight Linux distribution - Wikipedia .

10

Intel Graphics Media Accelerator 950 in chipset.

11

zram, zcache, zswap.
Available in openSUSE.