[SOLVED] Screen flickering (brightness changes)

phaze75 · May 9, 2018 at 7:11 AM

I am experiencing serious screen flickering recently. Not because of lost or delayed frames but a flickering caused by changes in the brightness of the screen. After booting LE everything is fine, then the flickering slowly starts and gains intensity (~30-60mins). The flickering is not a regular pattern but reminds me of the flickering of a I/O status led of a network switch. An interesting fact might also be that if I disconnect the HDMI Cable of the Beebox and reconnect it without rebooting the flickering is also gone for a while but will appear again some time later. I had these issues 1-2 years ago with the OpenElec releases at that time, but this issue was long gone. Now it is back.

I am using LE 8.2.5 on a ASROCK Beebox N3150 connected via HDMI to a Marantz NR1604 AVR connected via HDMI to a Sony VPL-HW40ES beamer.

What I should also mention is that I also use a PS4 connected to the AVR and beamer without any issues. So the beamer and the AVR are ok.

Is this a HW problem of the Beebox or an issue with the LE graphics driver?

phaze75 · May 9, 2018 at 5:39 PM

CvH , you are an inexhaustible source of LE wisdom. Do you have a hint for me?

**Klojum** · May 9, 2018 at 5:45 PM Official Post

I'd still start with (possibly) a different HDMI cable and to leave out the AVR, so you can connect to the TV directly with your N3150 device. Just to keep a clean-as-possible approach.

phaze75 · May 17, 2018 at 5:58 PM

I actually solved it by changing the signal refresh rate in LE from 50Hz to 60Hz and back. Don't ask me why it is gone now, but it is.

**Klojum** · May 17, 2018 at 10:37 PM Official Post

Whatever works for you