Machine audio software. Updated Many Mac users today found, to their surprise, they are unable to print to their HP Inc printers.
This is due to a code-signing snafu affecting macOS Catalina (version 10.15) and Mojave (10.14), specifically. HP's printer driver software is cryptographically signed with a certificate that macOS uses to determine whether the application is legit and can be trusted. However, that certificate was today revoked through an XProtect update, causing the software to be rejected by Macs.
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XProtect is the mechanism Apple uses to inform Macs to no longer trust and run certain programs, and it does this by revoking their code-signing certificates. There is no central database of certs cancelled by XProtect, there's one for each OS version it seems, and Catalina and Mojave were selected in particular. Apple chose to revoke the HP driver cert, or perhaps was asked to do so by HP.
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In any case, HP's driver software no longer works on those two particular operating system flavors. Users are told when trying to print, for instance, that HP's application 'will damage your computer,' and are given the option to run it anyway or send it to the trash. Trying to continue just loops you back round to the error message, with no work done. Punters are also encouraged to report this 'malware' to Apple.
Unofficial workarounds for now include using AirPrint to an HP printer, or uninstalling the HP software and using a generic PostScript driver.
A Reg reader who tipped us off about the blunder told us he was able to jerry rig some IPP connectivity to get an older device to print: 'We had a handful of printers where macOS would print into the ether. Windows had no problem. I found some IPP trickery on macOS Catalina worked on an older HP4650.'
We had a handful of printers where macOS would print into the ether. Windows had no problem
Complaints from punters are building up on the Apple and HP support forums.
'Trying to open Printer Utility on MacOS 10.15.7 and I get a crash dump every time saying 'Code Signature Invalid' for the binary /Library/Printers/hp/Utilities/HP Utility.app/Contents/MacOS/HP Utility,' said one netizen.
'Yes, my Deskjet F4140 abruptly stopped working with both my Mac mini desktop AND my partner's AirBook,' complained another. 'The AirBook keeps insisting it's malware (it's not), while my desktop says the certificate has expired. Suddenly, HP and Apple are NOT playing well together! I've redownloaded and reinstalled the printer software TWICE now but nothing has changed, just the same message about HP Utility now missing. Our jobs depend on this printer, HP.'
Thomas Reed, director of Mac and mobile at Malwarebytes, tweeted to say his users were up in arms at the tech breakdown: 'We're seeing a significant influx of support cases where users are seeing macOS identify what appear to be legit processes as malware.'
Mac blogger Howard Oakley has some more background, here. 'You're seeing that [error] message because macOS is checking the signature on your HP printer software, and being told that its signing certificate has been revoked,' he observed.
Amazon's Music desktop app is also, weirdly enough, no longer working, either, it's reported.
Spokespeople for HP and Amazon were not available for immediate comment. Apple declined to comment. ®
Updated to add
The Register understands from sources familiar with the matter that HP Inc asked Apple to revoke its printer driver code-signing certificates. It appears this request backfired as it left users unable to print. A HP Inc spokesperson told us on Friday night:
We unintentionally revoked credentials on some older versions of Mac drivers. This caused a temporary disruption for those customers and we are working with Apple to restore the drivers. In the meantime, we recommend users experiencing this problem to uninstall the HP driver and use the native AirPrint driver to print to their printer.
So.. A couple of years ago I purchased a Thunderbolt capable motherboard (Gigabyte GA-z77X-UP5), and an Apple's 27-in Thunderbolt Display--rather than it's (now-discontinued) Apple LED Cinema display--to go along with my Apple iMac 2010 (as a dual-display setup) which I was primarily using as an LED monitor for my Windows 7/8 PC. Boy was that a mistake.. LOL . Thunderbolt support on non-Apple computers was TERRIBLE back then. Maybe it still is terrible still, but I got some good news after all this time.
I had nothing but problems trying to get the Apple Thunderbolt Display to work alongside my ATI Radeon HD 7970 and the iMac (display port LED monitor).
- LucidLogix Virtu MVP Software was buggy and unstable.
- Photoshop wouldn't work with graphic card acceleration support.
- Trying to see the BIOS (post screen) was non-existent with the Thunderbolt display. Had to unplug that and only use the iMac display port connection connected to the ATI Radeon HD 7979.
Long story short, I ended up using my 27-in iMac as a primary monitor, and had the Apple Thunderbolt Display sitting on my desk for 2 years, doing nothing but looking sweet.. Because if nothing else, Apple has my kind of taste when it comes to appearances. I love modern/minimilast/industrial, or whatever you want to call this, style..
This was the initial studio setup about 3 years ago.. The Apple devices look great. And, if you're wondering, yes I primarily use Windows, but have no problems using Apple OS X. I've been obsessed with computers since the Amiga and Commodore 64 days; before most people thought of computers as something that only nerdy people use--that is before 'nerdy' or 'geeky' was considered a positive attribute.
Anyhow..
On to the main point of all this.. Just today, as I'm extremely swamped with projects, and BOOM, the iMac completely died, the screen turned off and the internal fans went full blast, shooting dust and black crap out it; never heard the fan anywhere near that loud (but I did read a while back that people experienced this when they tried replacing their HDD and the internal temperature sensor wasn't reconnected properly--on my the HDD went bad about a month ago, making OS X useless (took like 10 min to boot) but I didn't mind since I was only using it as a monitor. So I was like, 'shit.. at least I still have the Apple Thunderbolt Display' ..
So not having to worry about dual-display, or having to use my ATI card for any 3D or Video production intensive tasks, the integrated Intel HD 4000 display is good enough for my current needs.
So I plug in the Apple Thunderbolt Display, and 'BOOM it works! Awesome!' .. Now after coming off my relief and excitement, I now notice a GLARING problem: the display is extremely bright. It's almost impossible to use it at this brightness level; especially at dark.
'Oh man.. knew things were going too good..' So, thinking back at my, nothing but grief, history with the Thunderbolt Display, I'm not too optimistic on finding a solution.
Of course all the usual suspects didn't work:
- Brightness function keys on the Apple wireless keyboard (yes that works fine on a PC too)
- Intel Display control panel didn't have any brightness settings.
- Apple Boot Camp 5.x display drivers by themselves didn't do shit if installed -- more on this below.
- etc..
Well, come to find out you need to install Apple Boot Camp 5 in order to get the display brightness controls to work--and no, you can't just install the individual drivers; it needs the bootcamp control panel, which is only installed properly if you do the full Boot Camp 5 install. As of this writing, nothing but that exists to control the Thunderbolt Display brightness on a non-apple computer.
'OK, fine.. let's do the full install and hope that it doesn't overwrite my current drivers' .. What is the best picture editing software for free.
So, without any other options, I chose to go ahead and install the full Boot Camp 5..
And.. an error:
'Boot Camp x64 is unsupported on this computer'
'WTF? godamn this piece of shit!'
Install Apple Drivers
Yeah, my history with this thing is becoming more and more apparent.. So I search the internet far and wide, with very little support, and came to the (obvsious) conclusion, Apple doesn't want Windows users to be happy.
So! After about a couple of hours of trying to find a solution on the internet with no success, I end up messing around with the installation, and figure out a solution.
In any case, HP's driver software no longer works on those two particular operating system flavors. Users are told when trying to print, for instance, that HP's application 'will damage your computer,' and are given the option to run it anyway or send it to the trash. Trying to continue just loops you back round to the error message, with no work done. Punters are also encouraged to report this 'malware' to Apple.
Unofficial workarounds for now include using AirPrint to an HP printer, or uninstalling the HP software and using a generic PostScript driver.
A Reg reader who tipped us off about the blunder told us he was able to jerry rig some IPP connectivity to get an older device to print: 'We had a handful of printers where macOS would print into the ether. Windows had no problem. I found some IPP trickery on macOS Catalina worked on an older HP4650.'
We had a handful of printers where macOS would print into the ether. Windows had no problem
Complaints from punters are building up on the Apple and HP support forums.
'Trying to open Printer Utility on MacOS 10.15.7 and I get a crash dump every time saying 'Code Signature Invalid' for the binary /Library/Printers/hp/Utilities/HP Utility.app/Contents/MacOS/HP Utility,' said one netizen.
'Yes, my Deskjet F4140 abruptly stopped working with both my Mac mini desktop AND my partner's AirBook,' complained another. 'The AirBook keeps insisting it's malware (it's not), while my desktop says the certificate has expired. Suddenly, HP and Apple are NOT playing well together! I've redownloaded and reinstalled the printer software TWICE now but nothing has changed, just the same message about HP Utility now missing. Our jobs depend on this printer, HP.'
Thomas Reed, director of Mac and mobile at Malwarebytes, tweeted to say his users were up in arms at the tech breakdown: 'We're seeing a significant influx of support cases where users are seeing macOS identify what appear to be legit processes as malware.'
Mac blogger Howard Oakley has some more background, here. 'You're seeing that [error] message because macOS is checking the signature on your HP printer software, and being told that its signing certificate has been revoked,' he observed.
Amazon's Music desktop app is also, weirdly enough, no longer working, either, it's reported.
Spokespeople for HP and Amazon were not available for immediate comment. Apple declined to comment. ®
Updated to add
The Register understands from sources familiar with the matter that HP Inc asked Apple to revoke its printer driver code-signing certificates. It appears this request backfired as it left users unable to print. A HP Inc spokesperson told us on Friday night:
We unintentionally revoked credentials on some older versions of Mac drivers. This caused a temporary disruption for those customers and we are working with Apple to restore the drivers. In the meantime, we recommend users experiencing this problem to uninstall the HP driver and use the native AirPrint driver to print to their printer.
So.. A couple of years ago I purchased a Thunderbolt capable motherboard (Gigabyte GA-z77X-UP5), and an Apple's 27-in Thunderbolt Display--rather than it's (now-discontinued) Apple LED Cinema display--to go along with my Apple iMac 2010 (as a dual-display setup) which I was primarily using as an LED monitor for my Windows 7/8 PC. Boy was that a mistake.. LOL . Thunderbolt support on non-Apple computers was TERRIBLE back then. Maybe it still is terrible still, but I got some good news after all this time.
I had nothing but problems trying to get the Apple Thunderbolt Display to work alongside my ATI Radeon HD 7970 and the iMac (display port LED monitor).
- LucidLogix Virtu MVP Software was buggy and unstable.
- Photoshop wouldn't work with graphic card acceleration support.
- Trying to see the BIOS (post screen) was non-existent with the Thunderbolt display. Had to unplug that and only use the iMac display port connection connected to the ATI Radeon HD 7979.
Long story short, I ended up using my 27-in iMac as a primary monitor, and had the Apple Thunderbolt Display sitting on my desk for 2 years, doing nothing but looking sweet.. Because if nothing else, Apple has my kind of taste when it comes to appearances. I love modern/minimilast/industrial, or whatever you want to call this, style..
This was the initial studio setup about 3 years ago.. The Apple devices look great. And, if you're wondering, yes I primarily use Windows, but have no problems using Apple OS X. I've been obsessed with computers since the Amiga and Commodore 64 days; before most people thought of computers as something that only nerdy people use--that is before 'nerdy' or 'geeky' was considered a positive attribute.
Anyhow..
On to the main point of all this.. Just today, as I'm extremely swamped with projects, and BOOM, the iMac completely died, the screen turned off and the internal fans went full blast, shooting dust and black crap out it; never heard the fan anywhere near that loud (but I did read a while back that people experienced this when they tried replacing their HDD and the internal temperature sensor wasn't reconnected properly--on my the HDD went bad about a month ago, making OS X useless (took like 10 min to boot) but I didn't mind since I was only using it as a monitor. So I was like, 'shit.. at least I still have the Apple Thunderbolt Display' ..
So not having to worry about dual-display, or having to use my ATI card for any 3D or Video production intensive tasks, the integrated Intel HD 4000 display is good enough for my current needs.
So I plug in the Apple Thunderbolt Display, and 'BOOM it works! Awesome!' .. Now after coming off my relief and excitement, I now notice a GLARING problem: the display is extremely bright. It's almost impossible to use it at this brightness level; especially at dark.
'Oh man.. knew things were going too good..' So, thinking back at my, nothing but grief, history with the Thunderbolt Display, I'm not too optimistic on finding a solution.
Of course all the usual suspects didn't work:
- Brightness function keys on the Apple wireless keyboard (yes that works fine on a PC too)
- Intel Display control panel didn't have any brightness settings.
- Apple Boot Camp 5.x display drivers by themselves didn't do shit if installed -- more on this below.
- etc..
Well, come to find out you need to install Apple Boot Camp 5 in order to get the display brightness controls to work--and no, you can't just install the individual drivers; it needs the bootcamp control panel, which is only installed properly if you do the full Boot Camp 5 install. As of this writing, nothing but that exists to control the Thunderbolt Display brightness on a non-apple computer.
'OK, fine.. let's do the full install and hope that it doesn't overwrite my current drivers' .. What is the best picture editing software for free.
So, without any other options, I chose to go ahead and install the full Boot Camp 5..
And.. an error:
'Boot Camp x64 is unsupported on this computer'
'WTF? godamn this piece of shit!'
Install Apple Drivers
Yeah, my history with this thing is becoming more and more apparent.. So I search the internet far and wide, with very little support, and came to the (obvsious) conclusion, Apple doesn't want Windows users to be happy.
So! After about a couple of hours of trying to find a solution on the internet with no success, I end up messing around with the installation, and figure out a solution.
The fix
Hp Drivers And Downloads
- Download Boot Camp 5.
- Put it somewhere like C:drivers (create the folder if needed. We want a short path, because sometimes driver installs go bad due to long path)
- Extract it with 7zip.
- Start the command prompt with Admin priviledges.
- This can be done in Windows 8 or 8.1 by right-clicking the bottom left corner of the screen, and the selecting 'Command Prompt (Admin)'
- Or you can click Run and then type in cmd followed by hitting SHIFT + CONTROL + ENTER
- In the cmd prompt browse to where you extracted Boot Camp, specifically: BootCampDriversApple
And that should do it.. Reboot your PC and and you should now see a black diamond (Boot Camp) icon in the notification center, next to the time (where volume is located)
To control the brightness without an Apple keyboard, just click that Boot Camp icon, wait for it to load (it takes about 5 or more seconds for whatever reason) and click the 'Brightness' tab, and the rest is self explanatory.
If you have an apple keyboard, you can just use the F1 and F2 keys (the ones with sun icons) to control the brightness--Apple keyboards by default have the 'fn' key option enabled, opposite of regular keyboards. Meaning, if you wanted to use F1, F2, F3, etc on an Apple keyboard, you'd have to press the fn+F1, fn+F2, fn+F3, etc.
BTW, the Apple keyboard drivers, unlike the Apple Thunderbolt Display drivers, can be installed just by running:
I guess on non-Apple keyboards, you can control the brightness by hitting fn+f1 and fn+f2.
Alright.. there you go. Hope this brings joy to someone's life as it has brought it to my--inspiring this drawn out, rambling, post..
View the discussion thread.
