I think your bed is warping slightly as it heats up, which is normal. Set your bed temp to 105 for half an hour before starting your print and see if it still happens. If you have a V0 or other manually levelled printer, get the bed to 105 before levelling.
What are your bed temps for PLA and ASA? Does it still happen if you preheat the bed? If you rotate the print, does the rough spot follow the rotation?
An alkaline AA may have more capacity, but the LiPo has lower internal resistance and it's electrolyte is flammable. The worst the alkaline would do it shorted or punctured is get warm and poop out KOH.
I have an HL-2270DW and the toner low light comes on well before prints start washing out. Fortunately the toner life is tracked by a plastic gear on the cartridge, and it takes just a minute to roll it back. When it does run out, good third party replacements are under $20.
Plasma 6 and Wayland are working great under Tumbleweed for me on my 2-in-1 laptop, but there's still no usable virtual keyboard package like Maliit in Factory.
That's why many modern SoCs have a smaller core for realtime in addition to larger application processors. TI Sitara (Beaglebone) has 2 fast custom arch coprocessors for IO with access to most pins and the ability to DMA into the AP's address space. All Raspberry Pis up through Pi4 run a proprietary ThreadX runtime on a graphics processor (VPU) to handle bootstrapping the ARM APs, housekeeping, and a large part of the IO.
That's exactly what they are, but instead of connecting to a VAX at the other end of a modem they talk to a shell attached to a pseudo terminal device on the same machine.
25 years ago I worked at a university computer lab that was Windows-heavy because Dell wouldn't stop donating PCs. However we didn't have enough UNIX workstations as we had to pay for Sun / HP / IBM out of pocket. Converting them to Linux workstations would be nice because the Dells had more grunt than the aging RISC workstations.
I proposed to switch a few desks worth to Debian and was given the go-ahead. After a few days learning how to preseed an installation image and getting a PXE server going I had 8 machines running CDE just like the AIX and HP/UX boxes. Users that didn't need one of the commercial engineering applications tied to one OS or another didn't notice any difference between the free (now as in both speech and beer) Dells and the proprietary workstations.
A couple of months after we got the pilot rolling, the university's IT director came to check it out and told me we're on the "lunatic fringe" for deploying an OS developed by volunteers, but otherwise offered approval as long as we could maintain security and availability.
Now every student in our local school district gets issued a Chromebook running Linux under the hood. Who's the lunatic now?
two separate Okta instances. It was a coin toss as to which one you'd need for any given service
oh, and a third internally developed federated login service for other stuff
90 day expiry for all of the above passwords
two different corporate IM systems, again coin toss depending on what team you're working with
nannyware everywhere. Open Performance Monitor and watch network activity spike anytime you move your mouse or hit a key
an internally developed secure document system used by an international division that we were instructed to never ever use. We were told by IT that it "does something to the PC at a hardware level if you install the reader and open a document" which would cause a PC to be banned from the network until we get it replaced. Sounds hyperbolic, but plausible given the rest of the mess.
required a mobile authenticator app for some of the above services, yet the company expected that us grunts use our personal devices for this purpose.
all of the above and more, yet we were encouraged to use any cloud hosted password manager of our choosing.
I think your bed is warping slightly as it heats up, which is normal. Set your bed temp to 105 for half an hour before starting your print and see if it still happens. If you have a V0 or other manually levelled printer, get the bed to 105 before levelling.