Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
macOS 10.15 Catalina on Unsupported Macs
- Thread starter 0403979
- WikiPost WikiPost
- Start date
- Sort by reaction score
- Status
Mind trying to play
slither.io in Safari? For whatever reason, that seems to be a good unambiguous test.My GeForce 320M correctly detects 256 MB of RAM, so I don't think that's the issue. It's also not a lack of acceleration or performance in general -- the Finder UI, Flash games, iMovie, etc. are all clearly accelerated and run fine. It seems to specifically be an issue with webpages and video playback, but I can't figure out why.
I've never played it before, so I don't have a baseline for comparison. It seems to play fine. My CPU/GPU temps while playing are attached.
EDIT: This might be a thermal throttling problem. As I played longer, my CPU and GPU temps increased and game performance decreased. I attached a second set of temps to show the temp increase. Still very playable though.
Attachments
Last edited:
More 10.15.2 
patcher success - A barefoot late '09 Mini3,1 and mid '10 iMac11,2 run great on APFS HDDs. Perhaps Apple has finally tweaked APFS for HDDs? The iMac is on orig. 500GB 7200RPM HDD. The Mini has a multi-partitioned 1TB 5400RPM SSHDD. Both machines have APFS and HFS+ partitions.
patcher success - A barefoot late '09 Mini3,1 and mid '10 iMac11,2 run great on APFS HDDs. Perhaps Apple has finally tweaked APFS for HDDs? The iMac is on orig. 500GB 7200RPM HDD. The Mini has a multi-partitioned 1TB 5400RPM SSHDD. Both machines have APFS and HFS+ partitions.
Hi, this is one of the old machines out offering nearly every functionality if properly patched after using the Dosdude installer. You get airdrop, continuity etc. working. Only missing point is the all photos tab mentioned on page one of this thread. Runs perfectly on my desk with Catalina 10.15.2. Just search the forum for these patches.
Thanks @Ausdauersportler . I just put Mojave on here and that too seems to be working perfectly. However, with fear of losing the ability to upgrade down the road... whether the devs just stop working on it, or whether Apple decides to do something on their end, I would like the most recent of MacOS available. Catalina seems to be working well on most machines now so I will check out those patches and see about getting Catalina on here soon.
Thanks again.
Can someone please explain why the Radeon 6xxx and 5xxx series are not supported with graphics acceleration but OLDER graphics series like the 2xxx and 4xxx ARE supported? I don't understand because they both don't support metal and the 2xxx and 4xxx are older
I took another look at slither.io with Console open and observed a console flooded with "Safari kill() returned unexpected error 1."
According to this post in Stack Overflow, this is a Webkit (or underlying OS) bug that is still not fixed in 10.15.2. I don't understand this well enough to point to it as THE problem, but it may explain why graphics performance suffers in Safari slither.io (for those who are having problems with this).
Again and just to be clear, I am not seeing graphics acceleration problems on my system.
Terrible idea to use APFS in a mechanical drive.
[automerge]1579579566[/automerge]
Mojave has support for at least more than one year. Even High Sierra has support now.
Finally I was able to perform a test - there were errors. And a lot of. I don't understand anything about this, I can only ask you to help me with the decoding and advise me what to do next.
Attachments
Right, so High Sierra has support until the end of this year. Mojave will probably have it until the end of next year. My concern is the "what if" scenario. Some of these Devs just may decide to stop, or Apple might try to make this harder, to the point where people stop trying. Apple pushes for these updates on our systems, so that has me a little concerned. Are they going to slim up on the length of support per OS considering that the upgrades are free and they got rid of 32 bit support? What is their end game? Didn't Tim Cook slam Mac owners who have older machines? Personally, I feel like our days could be numbered.
[automerge]1579608680[/automerge]
Try reseating the RAM, make sure to blow out the ram slots with a can of compressed air. I was having issues once when I found my dogs hair stuck in there.
Run the test.
If it still fails, repeat with only 1 ram stick.
Then repeat with the other one.
Make sure the RAM is seated fully into place. Give it a firm press.
Hopefully someone else can offer some better advice, but that should get you started in the meantime.
Last edited:
Also: Try to swap both RAM modules (exchange their respective places in the sockets).
As this error only occurs during 64byte block copy processes and it seems to be a "stuck-at-high" error in one bit: If the RAM acrobatics from above do not help to find the error, it is also possible that one or more blocking/buffer capacitors on the mainboard are starting to fail. This could lead to excessive ripple on the supply of the RAMs, and would make sense because those 64byte block transfers are usually so called "burst accesses" to the RAM that need more energy than other, slower non-burst RAM read/writes.
Could be seen on an oscilloscope if some technician is at hand. Even in that case, modules of some other RAM vendors could still work in such a scenario (due to newer RAM consuming less peak power or better onboard caps on those modules). Give it a try - before trashing your good ol´ Mac! ;-)
You can't notice a graphics "deceleration" because from your previous posted specs you use an i7 cpu (or i5), but Catalina is not 100% video accelerated.
I suspect you're correct, because you know way more about this than I do. Just to make sure we're on the same page, my laptop has Nvidia graphics. Video performance for me in Catalina (and Mojave) is no different than High Sierra (with this awesome patcher).
Hello ******* -
Nevertheless, APFS performance is more than adequate on both machines especially the SSHDD Mini. I also have 10.15.1 on a SSD and other than loading the OS at boot, there is very little difference. I suspect Apple has tweaked APFS for HDDs as Catalina matures?
Last edited:
Severals months under Mojave, finally give it a try on Catalina.
Here my experience:
- The white screen before apple logo takes several seconds to load. (Quick fixed with forced cache rebuild.)
- When screensaver is activated the fans goes at max speed.
- In general system is faster than my Mojave days.
Just a quick question, I didn't applied APFS BootROM Patcher, I found the booting implementation works fine for me, pros or cons about this?
Here my experience:
- The white screen before apple logo takes several seconds to load. (Quick fixed with forced cache rebuild.)
- When screensaver is activated the fans goes at max speed.
- In general system is faster than my Mojave days.
Just a quick question, I didn't applied APFS BootROM Patcher, I found the booting implementation works fine for me, pros or cons about this?
Works fine on the machines that need it like the Mini3,1 - early MacBooks. On MCP79 machines there may be a risk with the APFS ROM Patcher?
Last edited:
I think it has to do that the 6xxx and 5xxx series were poorly made and may have to do with the lack of SSE instructions
Not sure how useful this will be, but I made a little thing to show all volumes in Disk Utility, including ones that are usually hidden, like
If you want to try it, just open
This doesn't add any functionality that's not already available in
Preboot or EFI. (This used to be possible via a defaults command on the pre- El Capitan version of Disk Utility, but not since.)If you want to try it, just open
Run.tool which will launch Disk Utility with my small dylib loaded. During that session it should show volumes with any roles. (You should also select View --> Show All Devices, of course.)This doesn't add any functionality that's not already available in
diskutil, but a bit easier than the command line.
Last edited:
So I was thinking...
Is this a result of a unrefined UI, the graphics fixes the devs here came up with, or my 1080p monitor. The edges look pixelated. Dang wrong forum... This is my Mojave install, but I did have it on older versions of Catalina. I'll update after installing Catalina. Actually, after inserting the image and stretching it, it doesn't look as bad.
***Edit - Installed Catalina and it was still there. I suspect that this is from being a 1080p monitor as it is more obvious on my 1280x800 MacBook screen.
Is this a result of a unrefined UI, the graphics fixes the devs here came up with, or my 1080p monitor. The edges look pixelated. Dang wrong forum... This is my Mojave install, but I did have it on older versions of Catalina. I'll update after installing Catalina. Actually, after inserting the image and stretching it, it doesn't look as bad.
***Edit - Installed Catalina and it was still there. I suspect that this is from being a 1080p monitor as it is more obvious on my 1280x800 MacBook screen.
Last edited:
I'm not certain I am on time for this party, but I installed Catalina on my 2011 mac mini with the HD3000 Graphics. It's quite nice and seems to work well.
Two issues;
1. I heard a lot on mention of slither.io playing choppy and slow. I tired in safari and this is the case, but in the new MS Edge, its fine. (I'm one of the few that actually enjoy using Edge).
2. In Photo's, we are missing "All Photos", so I used Collins workaround which is great, but I still seem to see most of mine under "Recent > View all".
Apart from those minor issues, seems to be great. However, Mojave was perfect on this machine with Collins tool.
To be honest, Mojave was better on this machine overall. I will probably go back to it after trying this out for a week.
Two issues;
1. I heard a lot on mention of slither.io playing choppy and slow. I tired in safari and this is the case, but in the new MS Edge, its fine. (I'm one of the few that actually enjoy using Edge).
2. In Photo's, we are missing "All Photos", so I used Collins workaround which is great, but I still seem to see most of mine under "Recent > View all".
Apart from those minor issues, seems to be great. However, Mojave was perfect on this machine with Collins tool.
To be honest, Mojave was better on this machine overall. I will probably go back to it after trying this out for a week.
Does anyone have a solution to the early 2008 MacBook Pro 17-Inch Brightness Issue with Catalina?
I tried looking around for you with no luck. It's shown as supported by the patcher, so there has to be something in these hundreds of pages. I would make sure to update the security, if needed, and then reinstall all patches through the tool, just like in Mojave off of the USB stick. It will take ten minutes and if it doesn't work, nothing gained, but nothing lost. Collin used this machine in his Moajve tutorial, actually, he used an early 2009 MacBook Pro 17" but it has the same graphics so I see no reason why it shouldn't work. Perhaps just use Mojave for now. Mojave seems solid, I still have High Sierra on my late 2008 MacBook unibody, but that will be losing support at the end of the year.
Last edited:
The same happened to my iMac 9.1. I did not find out that it was the night shift patch. Many thanks.