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-Aban...