Totally agree and in my experience this has always been the case - can vary enormously depending on the particular computer model, its age, and even can vary between seemingly identical computers (like in an iMac lab for example, 10 computers may be fine but two might be problematic).Ultimately it depends on the model of your Mac and your peripherals. Big Sur has been a huge change for the reliability of my 2018 Mac mini and my eGPU. Both worked okay with Mojave, but I would receive T2/Bridge OS errors on every reboot, my eGPU would occasionally freeze up macOS when playing certain games, and I could not reliably boot macOS with the eGPU connected as the primary output to my monitor. Catalina fixed the T2/Bridge OS error, but did nothing helpful with the eGPU and in some cases took a huge set backwards with graphical artifacts in games that worked fine in Mojave. Big Sur has resolved all these issues and has made my system perform as I felt it should have performed from the beginning. YMMV of course.
You may want to try this:My Samsung M2070W scanner didn’t work. I have an old MacBook Pro (2010) running High Sierra and the scanner works with that.
That does seem strange. My Canon MX890 Printer/Scanner has consistently worked with Mojave and Catalina. But just like flowrider mentioned above, I use VueScan for my scanning needs, versus any Canon scanning software (I also have successfully used the printer drivers contained within the Mac OS for usual printing tasks).I started this thread and thought I would update what I have done. I originally set up BS on an external drive to get a handle on it and find out if any of my requirements had changed or if anything didn‘t work. My Samsung M2070W scanner didn’t work. I have an old MacBook Pro (2010) running High Sierra and the scanner works with that. So as I can use that for scanning, I decided to install BS on my 2018 mini. I did what I always do with new operating systems and updated to BS rather than a clean install. Well, guess what - the scanner works. Same drivers, same everything but the scanner works. Result. But does it make any sense?
Well, here you are again In Post #7, which I was responding to. Janeilfen said that his scanner stopped working in Big Sur so he hooked the scanner to an old MBP running High Sierra. I don't want or need you responding to or editorializing my posts.^^^ Don't think this is the thread for VueScan, but yes, a fine product (I use it). Seems like you want this one:
Catalina made my Canon Scanner useless
Hey, I got a new mac pro and added my Canon Pixma 515 multifunction scanner/printer in the system settings. Printing works fine, but the device just doesnt show up as a scanner anymore. I was trying to download any drivers or software from canon but it says, that the printer is no longer...forums.macrumors.com
But yeah, the op did mention in post #7 above about his scanner now working with Big Sur.
Man, I guess you cannot read! I corrected my snafu with that last sentence in my post. Here it is:Well, here you are again In Post #7, which I was responding to. Janeilfen said that his scanner stopped working in Big Sur so he hooked the scanner to an old MBP running High Sierra. I don't want or need you responding to or editorializing my posts.
And yes, VueScan is just one of a myriad of software that has been updated to run on MacOS 11.
Lou
Catalina was and still is a hot mess. Wouldn't wish it upon the most seasoned of Windows users. Big Sur is still rough around the edges, but it's still a marked improvement. That all being said, as has been the trend for the last nine years (if not longer) of Mac operating system launches, the first few months are usually rough with device compatiblilty (and it's probably all the moreso given that Big Sur is the first macOS release for Apple Silicon Macs).I realise that technology marches ever onwards but what do people think the main advantage of BS is to the user? So far I can’t see much apart from the “look” and my scanner now doesn’t work.
I am almost certain you did not do a clean install.My experience is even worst. Much slower than Catalina.
I have had some minor problems with Parallels but I guess that's how software devs make their money with the updates. Other than that it's meh same same. I agree the Safari new tab button needs to go back... What were they thinking? It's not a huge deal for me because my main browser is FirefoxI shouldn't have updated as my existing VMware Fusion doesn't work. An update is available but its $80. I don't know why I need to be charged for compatibility purposes.
Additionally I despite the UI. It's just big and feels like Apple in the early to mid 2000's, Forstall style. Also Safari's new tab button needs to go back to the end of the last tab, not in the middle of the menu bar
The OS update just felt a little unnecessary
Man, I do plan on, eventually, moving to Big Sur via a clean installation. In fact, as soon as Onyx and Thunderbird are compatible (should happen very soon), I plan on downloading the non-beta V11.1 of Big Sur and doing a clean installation of it only a partition I have on an external SSD. I will then migrate/copy files, folders, apps, settings, etc. from a SuperDuper! backup I'll do right before that installation.Steady guys . This thread wasn't meant to stir up a hornet's nest. A caveat to my scanner observations. I need to truly test it out. At least it is now recognised in my Big Sur install, which was an update from Catalina. It was the stand alone clean install of BS on an external drive, where the scanner was not recognised.