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macOS 10.13.4 Update Problem Reports and Tips: (later added first)
(Ref: macOS 10.13.4 Delta & Combo Update downloads & related Apple articles.)
  • Reply to post below on High Sierra performance of nVidia GT650m/GT750m Mac notebooks:
    " Nvidia 750M GPU and High Sierra (info updated April 9th)
    I'm running 10.13.4 on a 2013 rMBP with a Geforce 750M GPU and seeing no major frame drops in the UI. FWIW, I run the dGPU (discrete GPU) mode non-stop because I've got a second monitor attached all the time. (I monitor with gfxCardStatus.)
    Just FYI - maybe there is something involved in the switching back and forth between the two GPUs that is slowing things down or something?

    - Are you running the default driver or nvidia's web driver?
    Default Apple Driver, although I do have the NVidia CUDA driver installed. (Claims it needs an update though.)
    (Did you install the April 2nd CUDA 387.178 & web graphics driver update for 10.13.4 (17E199)? Driver v387.10.10.10.30.103, not seen any later updates for D/L as of April 9th. BTW: I saw an apple forum post from someone that upgraded to 10.13.4, then got the CUDA Update required (in prefs) - installed CUDA 387.178, but prefs still shows "update required". But the Prefs Screenshot posted doesn't show the updated graphics driver 387.10.10.10.30.103, it shows 355.11.10.10.30.120. Hopefully they install the Graphics driver update for 10.13.4 to see if that helps. The download page for the graphics driver has an install note on High Sierra Security/Privacy settings, also on our driver update post.)

    - Did you notice any performance drop vs macOS 10.13.x (or earlier)?
    No noticeable performance drop for me.
    - Eric.
    My system specs
    2013 rMBP info"
    Thanks Eric, appreciate the replies.

  • Comments on poor performance in High Sierra with nVidia GT650m & GT750m GPU notebooks:
    "Support for nVidia GT650m and GT750m discreet GPUs seems to be fairly tanked in High Sierra. Frame rates as low as 2fps in the UI and using apps such as Photoshop, InDesign, Illustrator and games. Although the support has got better as of 10.13.4, the onboard intel graphics are often better but still poor. Best option is to downgrade to 10.12!
    Several discussions on the apple forum.
    https://discussions.apple.com/message/32562903
    https://discussions.apple.com/thread/8226819
    https://discussions.apple.com/thread/8204377
    https://discussions.apple.com/thread/8141739
    https://discussions.apple.com/thread/8122451
    I downgraded my Early 2013 15" rMBP back to 10.12 from 10.13, performance is back to normal proving it is the OS and not hardware as had been suggested in the early posts on some discussions.
    -Ed J. (UK)"
    I kept hoping an OS update or Nvidia driver update would help. (The Nvidia web drivers have listed "Beta" support for MacBook Pro 11,3 (2013), MacBook Pro 10,1 (2012), and MacBook Pro 9,1 (2012). That note still in the latest web graphics driver download page for 10.13.4.)

  • Sleep Wake Failure with High Sierra 10.13.4, with some saying it's FileVault related. (Some tried the tips in Apple's If your Mac doesn't sleep or wake when expected - ES settings, resetting SMC, Nvram, using a different user acct, Safe Boot, etc.)

  • While checking Apple's forums for info on another reader's problems, saw a thread titled Screen Sharing is broken in macOS 10.13.4 that has a later post from that user about a new Security Update and Remote Desktop (client?) update yesterday. (I don't use High Sierra to check for updates but nothing new as of post time at Apple's support downloads page.)
    (Apr 3, 2018 10:42 AM)
    "After connecting over SSH to the Mac Pro, I discovered that it had applied a security update yesterday AND there was a NEW remote desktop update. Applied it, rebooted the Mac Pro and I'm now able to connect normally over VNC/Screen Sharing."
    Curious if anyone else running 10.3.4 has seen these updates.
    (FYI: Apple revised the article on security fixes again on April 9th. PDFKit entry updated and Status Bar entry added. Both regarding High Sierra.)

  • From a reader mail (problem seen by others in Apple user forums and developer forums even prior to 10.13.4, no fix seen yet).
    "signpost_notificationd (Skylight) 0 is not a valid connection ID"
    Since updating to 10.13.4, this error is constantly showing in Console. Have read that others are having this problem (see Apple forums). I did not have this prior to 10.13.4 (was running 10.13.3 supplemental). Causing fan to run extremely high in 2011 Mac Mini (core i7). Any ideas or suggestions from your readers?
    -Mark"
    IIRC Skylight is core graphics services, but if anyone knows of a cause/fix let me know.
    Some users and developers noted this problem prior to 10.13.4, although another user also said he didn't have the problem in 10.13.3 (w/suppl. update), only after the 10.13.4 update. This thread on the problem also noted high fan speeds and Activity Monitor showing UserEventAgent and Launchd maxing out the CPU. Recent posts in this thread from Feb. said an erase and clean install of 10.13.4 didn't help and it was a bug not fixed in the 10.13.4 (17E199) release. (Makes me wonder about Apple's developer releases page yesterday listing an earlier build of 10.13.4 - 17E189.)
    Some had major problems just installing the 10.13.4 update (even with the Combo Update). For some Macs, firmware updates are also done at install. (I wish they still posted downloadable firmware updates, but they stopped that some time ago.)

  • DisplayLink - Important Information about macOS 10.13.4 update (displaylink support)
    "...installing macOS release version 10.13.4 will cause DisplayLink connected displays to go blank after the OS upgrade, with the current DisplayLink driver [4.1] installed....

    ... we have a new driver [4.3] that will enable clone mode, but not mirror or extended mode displays in 10.13.4. If you require mirror or extended mode displays, we recommend that you stay on macOS 10.13.3 or earlier at this time."


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