- Joined
- Nov 14, 2014
- Messages
- 85
- Motherboard
- GA-B85M-D3H
- CPU
- i5-4440
- Graphics
- ASUS GTX750TI-PH-2GD5 (http://www.asus.com/in/Graphics_Cards/GTX750TIPH2GD5/)
- Mac
- Classic Mac
- Mobile Phone
Every time I boot into Yosemite with the Intel HD 4600 connected to my Dell S2440L monitor via HDMI, right after the screen showing the progress bar with the Apple logo and right before the login screen, I get white noise (like the sort we used to see on our old TVs).
My resolution is 1920x1080 @ 60 Hz NTSC.
Usually, unplugging and re-plugging the HDMI cable from the motherboard seems to resolve the issue and I get the login screen back. This used to happen only before the login screen at first but lately, I see white noise appear at any random point in time of OS X usage.
Also, unplugging and re-plugging the HDMI cable from the monitor does not seem to help, in any way.
At first, I thought the cable was at fault but it seems to work fine with Windows.
I'm assuming it has something to do with the Refresh Rate (Frequency) of my monitor. There is some mismatch happening with respect to that, between the monitor and OS X, I suspect.
I only get two options for the Refresh Rate in System Preferences > Display, NTSC (60 Hz) and PAL (50 Hz), selecting either seems to make no difference at all.
I tried stepping down with the resolution and the white noise stopped but the screen kept flickering every 3-4 seconds.
At the moment, I have selected the option that automatically selects the best possible setting for the monitor (which happens to be 1920 x 1080 @ 60 Hz NTSC according to OS X) in System Preferences > Display.
Any suggestions / insights / thoughts about resolving this?
My resolution is 1920x1080 @ 60 Hz NTSC.
Usually, unplugging and re-plugging the HDMI cable from the motherboard seems to resolve the issue and I get the login screen back. This used to happen only before the login screen at first but lately, I see white noise appear at any random point in time of OS X usage.
Also, unplugging and re-plugging the HDMI cable from the monitor does not seem to help, in any way.
At first, I thought the cable was at fault but it seems to work fine with Windows.
I'm assuming it has something to do with the Refresh Rate (Frequency) of my monitor. There is some mismatch happening with respect to that, between the monitor and OS X, I suspect.
I only get two options for the Refresh Rate in System Preferences > Display, NTSC (60 Hz) and PAL (50 Hz), selecting either seems to make no difference at all.
I tried stepping down with the resolution and the white noise stopped but the screen kept flickering every 3-4 seconds.
At the moment, I have selected the option that automatically selects the best possible setting for the monitor (which happens to be 1920 x 1080 @ 60 Hz NTSC according to OS X) in System Preferences > Display.
Any suggestions / insights / thoughts about resolving this?