Found a workaround that works much better. I've updated my bugzilla report with this:
Found a workaround. When up brought up system settings (/usr/bin/systemsettings5) and went to the display applet, it showed the 2 monitors. I noticed the real monitor was labeled DP-1. The fake laptop screen was labeled eDP-1. I had been googling around for how to disable monitors at boot time and had come across the kernel parameter "video=DISPLAYNAME:d. I had been trying video=LVDS-1:d since everything I had found mentioned that as the laptop display. This time I tried adding "video=eDP-1:d" to the line for the kernel and it worked. I have since added it to the line in /boot/grub/grub.cfg.
On 12/02/2016 02:12 PM, Charles R. Dennett wrote:
I filed a bugzilla report. It's https://bugzilla.redhat.com/show_bug.cgi?id=1397864
Meanwhile I did some more poking around and found something that appears very interesting. To quote a comment I added to the above bugzilla report:
================================================== Apparently, kernels newer than 4.8.4 think my system has 2 monitors attached to it. It only has one. It has never had two. I'm using the embedded graphics for my one and only monitor. I have never added a second video card. When I run the KDE system settings app and use the display applet, it sees my main monitor and second monitor it describes as a laptop monitor. This system is not a laptop. It is a desk-side system. Only kernels newer than 4.8.4 (ie, 4.8.8.and 4.8.10) show this. The 4.8.4 kernel correctly determines I only have one monitor. ==================================================
I've got a workaround for now. I can run system setting and choose the display and monitor applet. That's where I see two displays. After some back and forth I've found that clicking "Unify Outputs" gives me one display. Icons are all messed up but I can live with that for now.
Charlie
On 11/22/2016 05:27 PM, Charles R. Dennett wrote:
Thanks for the suggestion. I removed the xorg-x11-dev-intel package and rebooted on the 4.8.8 kernel. It did not help. Same situation. Looks like it's using the modesetting driver from what I see in Xorg.0.log. I'll keep looging.
Charlie
On 11/21/2016 10:49 PM, Felix Miata wrote:
Charles R. Dennett composed on 2016-11-20 08:46 (UTC-0500): ...
Do you have any optional repos installed?
I have no Skylake systems, but I do have multiple versions of Fedora on multiple multiboot systems with Intel video. KDE in F24 is fine on all that I can recall, but not so with F25 and Rawhide, which on at least one (older than yours, Eaglelake) machine exhibits symptoms similar to what you report. The difference I see is that F25 and Rawhide are now using server 1.19rc1, while F24 (running 4.8.7 currently booted on host big41) remains on 1.18.4.
Regardless whether a 1.19 server is present, you could try the driver integrated into the server, "modesetting", (most easily) by uninstalling xorg-x11-drv-intel.
The modesetting driver seems to be the future of X regardless of gfxchip: http://www.phoronix.com/scan.php?page=news_item&px=Ubuntu-Debian-Abandon...