Contribute
Register

[Solved] High Sierra - need CMOS reset after sleep

Status
Not open for further replies.
Joined
Mar 8, 2012
Messages
70
Motherboard
OSX ML 10.8.5
CPU
3.4ghz
Graphics
ATI 6850
Mac
  1. 0
Classic Mac
  1. 0
Mobile Phone
  1. 0
Hello,

My High Sierra works fine, except: SLEEP :(

Before login (at the user login screen), sleep works fine. Wakes fine, over and over again.

But, after I login:

Sleep -> Fine
Wake -> Black screen, need hard reboot and remove the CMOS, otherwise it goes in a reboot loop.

Anyone?
 
-> Before login: Sleep / Wake works
-> After login -> logging out again (Login screen: sleep / Wake works
-> Logging in again : Sleep / Wake -> black screen, remove CMOS to recover

Can anyone explain how this is possible
 
Fixed! (by vandroiy2012 at http://www.insanelymac.com/forum/topic/329624-need-cmos-reset-after-sleep-only-after-login/)


Dump your ACPI tables with F4 in Clover GUI. Open DSDT.aml in MaciASL

Find RTC device and change all it's code with this

Device (RTC)
{
Name (_HID, EisaId ("PNP0B00")) // _HID: Hardware ID
Name (_CRS, ResourceTemplate () // _CRS: Current Resource Settings
{
IO (Decode16,
0x0070, // Range Minimum
0x0070, // Range Maximum
0x00, // Alignment
0x02, // Length
)
})
}
 
Status
Not open for further replies.
Back
Top