I have a problem with the battery life.
Laptop now gets very hot with use, hotter than it ever used to with 42.x.
I can leave the laptop fully charged having being closed for hours (and cool to the touch), and find it entirely discharged after five hours.
Power seems to drain faster in use - web-browsing can see the battery drop 50% in an hour.
Laptop does not seem to suspend properly - at least that is my presumption from dead batteries after several hours from full.
This laptop is a 2012 era Samsung Series 9 ultrabook with an Ivybridge 17W dual-core.
Despite its age, I could still expect four hours of light usage out of it under 42.x (fairly intensive web-browsing, mainly text, virtually no streaming of any kind).
Wifi signal strength isn’t perfect from where it is used, but it is definately not marginal - or even low.
These are hardware-specific issues, so some further investigation will be needed to help tune power management. These references could be useful here…
Your graphics hardware details are likely also relevant…
i had a look in the power management settings and all looks as it should.
—@—:~> /usr/sbin/hwinfo --gfxcard
11: PCI 02.0: 0300 VGA compatible controller (VGA)
[Created at pci.378]
Unique ID: _Znp.vD6EreSNzdB
SysFS ID: /devices/pci0000:00/0000:00:02.0
SysFS BusID: 0000:00:02.0
Hardware Class: graphics card
Model: “Intel 3rd Gen Core processor Graphics Controller”
Vendor: pci 0x8086 “Intel Corporation”
Device: pci 0x0166 “3rd Gen Core processor Graphics Controller”
SubVendor: pci 0x144d “Samsung Electronics Co Ltd”
SubDevice: pci 0xc0d3
Driver Modules: “i915”
Memory Range: 0xf0000000-0xf03fffff (rw,non-prefetchable)
Memory Range: 0xe0000000-0xefffffff (ro,non-prefetchable)
I/O Ports: 0x3000-0x303f (rw)
Memory Range: 0x000c0000-0x000dffff (rw,non-prefetchable,disabled)
IRQ: 25 (52562 events)
I/O Port: 0x00 (rw)
Module Alias: “pci:v00008086d00000166sv0000144Dsd0000C0D3bc03sc00i00”
Driver Info #0:
Driver Status: i915 is active
Driver Activation Cmd: “modprobe i915”
Config Status: cfg=new, avail=yes, need=no, active=unknown
Primary display adapter: #11