Issues with Ubuntu 16.04.2 with kernel 4.8

giuliocoluccia · 03-30-2017, 08:02 AM

It seems that the workaround described here http://displaylink.org/forum/showpos...98&postcount=1 attenuates the issue. Currently I've connected the external monitor and it seems to work, even if it is not super smooth. Even if the "hot swap" connection of the monitor makes the session crash and disconnect, coming back to the greeter page.

fotografo · 05-04-2017, 05:37 PM

jerrinot's method worked for me! For anyone confused, my xorg.conf file in /usr/share/doc/xserver-xorg-video-intel-hwe-16.04/xorg.conf looks exactly the same as giuliocoluccia's. I did not edit that. I navigated to /etc/X11/ and ran the command "sudo gedit xorg.conf" to create a new file and then copied and pasted jerrinot's file (this file ) and saved it. Restarted my computer and now there is no more lag on either of my two monitors. I had to go to System Settings > Displays and fix some issues cause for some reason it had my built-in display inside the HDMI monitor and the Display Port monitor was turned off.

HOWEVER, sometimes Chrome does some strange flashing. It's not often but it is happening. But no lag, scrolling is super smooth, no problems other than the occasional flashes.

My setup: Ubuntu 16.04.2 on a Dell XPS 9350 using a StarTech USB3DOCKHDPC. I have one monitor connected to my USB-C port via HDMI, and one monitor connected to the docking station via Display Port. I could try the HDMI cable in the docking station, too...but I'm kind of scared to after spending so much time trying to get my dual-monitor setup working. XD

UPDATE: Finally plugged in both Display Port and HDMI to docking station. Both monitors working fine. Ocassional flashing still there though. My PC is getting hot now and the fan is pretty loud.

galeon · 05-05-2017, 07:11 AM

So, I started with the problems all the other people her have with Ubuntu 16.04 on the current XPS 13 version with a D3100 dock.
After multiple steps of debugging and upgrading with all variants of states from having no monitors, not being able to type (that was a bummer) I'm now at the state fotografo described with the xorg.conf on 17.04 and everything seems to work, more or less smoothly.

This should be fixed in any way, I've spent up to two full working days just running around my notebook trying to get a ready to work environment back again...

i2000s · 06-12-2017, 04:14 AM

How do you guys get your audio work? Mine doesn't, neither the suspension operation closing the computer lid.

05-04-2017, 05:37 PM	#2
fotografo Banned Join Date: May 2017 Location: Usa Posts: 1	Got it working jerrinot's method worked for me! For anyone confused, my xorg.conf file in /usr/share/doc/xserver-xorg-video-intel-hwe-16.04/xorg.conf looks exactly the same as giuliocoluccia's. I did not edit that. I navigated to /etc/X11/ and ran the command "sudo gedit xorg.conf" to create a new file and then copied and pasted jerrinot's file (this file ) and saved it. Restarted my computer and now there is no more lag on either of my two monitors. I had to go to System Settings > Displays and fix some issues cause for some reason it had my built-in display inside the HDMI monitor and the Display Port monitor was turned off. HOWEVER, sometimes Chrome does some strange flashing. It's not often but it is happening. But no lag, scrolling is super smooth, no problems other than the occasional flashes. My setup: Ubuntu 16.04.2 on a Dell XPS 9350 using a StarTech USB3DOCKHDPC. I have one monitor connected to my USB-C port via HDMI, and one monitor connected to the docking station via Display Port. I could try the HDMI cable in the docking station, too...but I'm kind of scared to after spending so much time trying to get my dual-monitor setup working. XD UPDATE: Finally plugged in both Display Port and HDMI to docking station. Both monitors working fine. Ocassional flashing still there though. My PC is getting hot now and the fan is pretty loud. Last edited by fotografo; 05-04-2017 at 05:48 PM.

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03-30-2017, 08:02 AM	#1
giuliocoluccia Junior Member Join Date: Dec 2015 Posts: 21	It seems that the workaround described here http://displaylink.org/forum/showpos...98&postcount=1 attenuates the issue. Currently I've connected the external monitor and it seems to work, even if it is not super smooth. Even if the "hot swap" connection of the monitor makes the session crash and disconnect, coming back to the greeter page.

05-05-2017, 07:11 AM	#3
galeon Junior Member Join Date: May 2017 Posts: 5	So, I started with the problems all the other people her have with Ubuntu 16.04 on the current XPS 13 version with a D3100 dock. After multiple steps of debugging and upgrading with all variants of states from having no monitors, not being able to type (that was a bummer) I'm now at the state fotografo described with the xorg.conf on 17.04 and everything seems to work, more or less smoothly. This should be fixed in any way, I've spent up to two full working days just running around my notebook trying to get a ready to work environment back again...

06-12-2017, 04:14 AM	#4
i2000s Junior Member Join Date: Jun 2017 Posts: 20	How do you guys get your audio work? Mine doesn't, neither the suspension operation closing the computer lid.