On Wed, 2017-08-02 at 01:48 -0400, Felix Miata wrote: > Michael Milliman composed on 2017-08-01 21:22 (UTC-0500): > > > With a little more research, I have found that the HDMI interface > > is > > detected and shows up on the xrandr output. However, it shows up > > as > > being disconnected, even though it is indeed connected. I note > > that I > > have checked both the cable and the the connector on the monitor > > (HDTV > > in this case) and they both are good -- both windows on the same > > laptop, and the HDMI outputs of two different Android tablets work > > with > > the TV on their HDMI ports using the same cable and input on the > > TV. > > I have done a little additional research on the web, and found a > > couple > > of similar situations, but I have been unable to get xrandr to show > > the > > HDMI port as connected. > > What does Xorg.0.log say? Share the whole thing via paste.debian.net > (optionally > pastebinit via cmdline). Xorg.0.log does not exist on my system (this mystified me when I went to look at it) > > I suspect you're going to need specialized help due to some bug. > Where to go I > can't be sure, because nothing you've written makes it completely > unambiguous > whether the HDMI port is controlled by a proprietary NVidia driver or > one of the > FOSS drivers. https://support.hp.com/us-en/document/c05567143 doesn't > seem to > help either. > In trying to determine what driver is being used, I found this in the lspci -v -nn output: 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation Device [10de:1c8d] (rev ff) (prog-if ff) !!! Unknown header type 7f Kernel modules: nvidia Clearly the !!! Unknown header type 7f is an indication of a problem.
> If it's only NVidia showing up in the log, you probably need to goto > NVidia's > support forum. If Intel is showing up in the log, then I'd start with > the > intel-...@lists.freedesktop.org mailing list so that Intel's driver > devs can > take a look. For the latter, > https://01.org/linuxgraphics/documentation/how-report-bugs has rather > explicit > instructions to consider. -- 73s de Mike, WB5VQX