- Joined
- May 11, 2014
- Messages
- 84
- Motherboard
- ASUS ROG STRIX Z370-G Gaming (WIFI-AC)
- CPU
- i5-8600K
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- RX580
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[SOLVED] Can't boot with dual monitor setup on GTX970
Hi All,
I have the following components running Yosemite 10.10.1
Asrock Z97 Anniversary
16GB RAM
Xeon E3 1231 (so no HD Intel integrated graphics)
SSD Samsung EVO 256GB
Gigabyte GTX970 4GB
2 x Dell 2407 connected with DVI (DVI for both)
Setup is running latest NVIDIA Drivers for 10.10.1 + CUDA drivers
Scenario A - NVIDIA drivers not used (moved outside the S/L/E folder for troubleshooting)
Booting with 2 screens connected
only one screen is detected
MacOS boots up and I can login
Resolution is ugly (expected)
Scenario B1 - NVIDIA drivers installed and 1 screen connected only using DVI
Booting with ONE screen connected ONLY
MacOS boots up, login OK
Resolution is at 1920x1200
Scenario B2 - Follow-up on scenario B1 - connecting my second screen
Connecting second screen
Screen is recognized
Resolution is correct
Even sleep/wake up functions work when 2 screens are connected
If I restart, or cold start then I hit scenario C - see below
Scenario C - Boot with 2 screens connected using DVI
Two screens are connected at boot time
Regardless of the arguments (tried GraphicsEnabler=no, -x, -v, dart=0) passed at boot time
I get a grey screen / kernel panic (if -v is enabled)
I keep seeing nvda_drv=1 although I tried to pass nvda_drv=0 as an argument but ended up with the verbose mode showing:
Boot args: kext-dev-mode=1 nvda_drv=1 nvda_drv=0 -v -x
Would anybody have an idea on how to boot with 2 screens connected?
Hi All,
I have the following components running Yosemite 10.10.1
Asrock Z97 Anniversary
16GB RAM
Xeon E3 1231 (so no HD Intel integrated graphics)
SSD Samsung EVO 256GB
Gigabyte GTX970 4GB
2 x Dell 2407 connected with DVI (DVI for both)
Setup is running latest NVIDIA Drivers for 10.10.1 + CUDA drivers
Scenario A - NVIDIA drivers not used (moved outside the S/L/E folder for troubleshooting)
Booting with 2 screens connected
only one screen is detected
MacOS boots up and I can login
Resolution is ugly (expected)
Scenario B1 - NVIDIA drivers installed and 1 screen connected only using DVI
Booting with ONE screen connected ONLY
MacOS boots up, login OK
Resolution is at 1920x1200
Scenario B2 - Follow-up on scenario B1 - connecting my second screen
Connecting second screen
Screen is recognized
Resolution is correct
Even sleep/wake up functions work when 2 screens are connected
If I restart, or cold start then I hit scenario C - see below
Scenario C - Boot with 2 screens connected using DVI
Two screens are connected at boot time
Regardless of the arguments (tried GraphicsEnabler=no, -x, -v, dart=0) passed at boot time
I get a grey screen / kernel panic (if -v is enabled)
Code:
Kernel Panic (CPU 4) "a freed zone element has been modified in zone kalloc.64: expected 0xdeadbeefdeadbeef but found 0xdeadbeef00000000 bits change 0xdeadbeef, at offset 48 of 64 in element 0xffffff801d46ad00"
I keep seeing nvda_drv=1 although I tried to pass nvda_drv=0 as an argument but ended up with the verbose mode showing:
Boot args: kext-dev-mode=1 nvda_drv=1 nvda_drv=0 -v -x
Would anybody have an idea on how to boot with 2 screens connected?
Last edited: