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Kernel from installed distro doesn't recognize all available memory on my
laptop (Acer Swift 5 SF514-54T-59VD, Ubuntu Focal Fossa 20.04). When I load
Linux distro (Focal Fossa 20.04 release) from installation USB-stick Kernel
detects all memory (over 7Gb, part of memory used by graphic, on laptop
installed 8Gb memory). Kernel from installed distro shows only 1.5 Gb available
memory.
Output of commands for installed system:
$ lsb_release -a; uname -a; free -m
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04 LTS
Release: 20.04
Codename: focal
Linux mxmaki 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 2020
x86_64 x86_64 x86_64 GNU/Linux
total used free shared buff/cache available
Mem: 1628 806 110 163 711 498
Swap: 2047 24 2023
Output of commands for system from installation USB-stick:
$ lsb_release -a; uname -a; free -m
Distributor ID: Ubuntu
Description: Ubuntu 20.04 LTS
Release: 20.04
Codename: focal
Linux ubuntu 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 2020
x86_64 x86_64 x86_64 GNU/Linux
total used free shared buff/cache available
Mem: 7641 763 3323 675 3554 5903
Swap: 0 0 0
** Affects: linux-signed (Ubuntu)
Importance: Undecided
Status: New
** Tags: bot-comment
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Different kernel gives different RAM results
https://bugs.launchpad.net/bugs/1875236
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