[ilovethakush]

I'm seeing sporadic flickering display at all times using OpenElec builds, both Isengard and Jarvis. It seems like a driver issue, the flicker starts with the openelec logo, before X has even loaded. It almost looks like the GPU is overheating. Is this a known issue?

I was using a build from 10/04 [1] before I saw the issue, but didn't upgrade until 10/26 [2], so the regression could be anywhere in that (very large) window. I'd be happy to try to bisect if archived builds are available. Reverting to the 10-04 build or the official OpenElec fixes the issue.

Hardware is an ASUS Celeron chromebox 2955U, connected via HDMI to a Denon AVR.

[1: OpenELEC-Generic.x86_64-6.0-devel-20151004165234-r21363-gd89c515]
[2: OpenELEC-Generic.x86_64-6.0-devel-20151025194904-r21541-gda1b74a]

Is it the occasional horizontal line flashing across the screen? Because I am having that since updating to the custom EGL build of Open ELEC. I have the same Chromebox as you and a Denon 3311CI AVR connected via HDMI.

This was a constant flickering. The UI was near unusable and video was unwatchable.

Just to update on this issue (in case anyone else experiences it.) Based on everyone's feedback, I decided this was probably a thermal issue and moved the Chromebox out of the cabinet it was in and away from other electronic devices. This fixed the flickering.

I'm guessing the GPU runs a bit hotter with the VAAPI changes, and hence the issue went away when I rolled back to vanilla OpenElec. I'm willing to keep the box out in the open for better playback and colors.

Fritsch,

If you think that running hotter than normal is unexpected behavior let me know and I can try capturing logs or lmsensors data.

Ian.

Yes I think running hotter than normal is unexpected behavior, but considering you had it locked up in a cabinet, it may not be all that unexpected. Why would you put a computer with fans and air paths in a cabinet?

Just to be clear. I'm running the EGL build and if anything, my box is actually quieter and cooler than it was on previous versions of openelec.