Contribute
Register

[Solved] High Sierra - need CMOS reset after sleep

Joined
Mar 8, 2012
Messages
86
Motherboard
OSX ML 10.8.5
CPU
3.4ghz
Graphics
ATI 6850
Mac
Classic Mac
Mobile Phone
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?
 
Joined
Mar 8, 2012
Messages
86
Motherboard
OSX ML 10.8.5
CPU
3.4ghz
Graphics
ATI 6850
Mac
Classic Mac
Mobile Phone
-> 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
 
Joined
Mar 8, 2012
Messages
86
Motherboard
OSX ML 10.8.5
CPU
3.4ghz
Graphics
ATI 6850
Mac
Classic Mac
Mobile Phone
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
)
})
}
 
Top