Created attachment 139575 [details]
Xorg crash log
I have a Razer Blade 14" (2016), which has an integrated Intel graphics and a dedicated NVIDIA GTX 1060M GPU to which the HDMI port is physically routed.
I am using the Intel and Nouveau driver to drive 3 screens: the integrated 3200x1800 panel on eDP1, an AOC 25" 2560x1600 screen through a USB-C to HDMI adapter on DP1, and another AOC 25" 2560x1600 screen through the dedicated HDMI port on HDMI-1-2.
I manage to randomly get them to work: most of the time, as soon as I plug in the HDMI cable, the X server crashes in loop. I attached the log, I suspect the total resolution is bigger than what is accepted by the Intel GPU or something, even though in Ubuntu I forced the integrated panel resolution to 2560x1600 to get below 8192x8192, it tries to assign a total surface of 8320x1800.
Is there some way to force the integrated panel to a lower resolution? I am using my laptop primarily at work, and attached to external screens, so I couldn't care less if it was running at 3200x1800 or 2560x1600.
Regardless, there's a crash that needs to be fixed I guess :)
Here's my Xorg.conf (required so that xrandr lists the Nvidia adapter and detects the HDMI screen):
Option "IgnoreABI" "1"
Identifier "Nvidia card"
I attached the Xorg.0.log of the crash.
Running Ubuntu 18.04 LTS. Here are the packages versions:
ii xserver-xorg 1:7.7+19ubuntu7 amd64 X.Org X server
ii xserver-xorg-core 2:1.19.6-1ubuntu4 amd64 Xorg X server - core server
ii xserver-xorg-input-all 1:7.7+19ubuntu7 amd64 X.Org X server -- input driver metapackage
ii xserver-xorg-input-evdev 1:2.10.5-1ubuntu1 amd64 X.Org X server -- evdev input driver
ii xserver-xorg-input-libinput 0.27.1-1 amd64 X.Org X server -- libinput input driver
ii xserver-xorg-input-synaptics 1.9.0-1ubuntu1 amd64 Synaptics TouchPad driver for X.Org server
ii xserver-xorg-input-void 1:1.4.1-1build3 amd64 X.Org X server -- void input driver
ii xserver-xorg-input-wacom 1:0.36.1-0ubuntu1 amd64 X.Org X server -- Wacom input driver
ii xserver-xorg-legacy 2:1.19.6-1ubuntu4 amd64 setuid root Xorg server wrapper
ii xserver-xorg-video-all 1:7.7+19ubuntu7 amd64 X.Org X server -- output driver metapackage
ii xserver-xorg-video-amdgpu 18.0.1-1 amd64 X.Org X server -- AMDGPU display driver
ii xserver-xorg-video-ati 1:18.0.1-1 amd64 X.Org X server -- AMD/ATI display driver wrapper
ii xserver-xorg-video-dummy 1:0.3.8-1build1 amd64 X.Org X server -- dummy display driver
ii xserver-xorg-video-fbdev 1:0.4.4-1build6 amd64 X.Org X server -- fbdev display driver
ii xserver-xorg-video-intel 2:2.99.917+git20171229-1 amd64 X.Org X server -- Intel i8xx, i9xx display driver
ii xserver-xorg-video-nouveau 1:1.0.15-2 amd64 X.Org X server -- Nouveau display driver
ii xserver-xorg-video-qxl 0.1.5-2build1 amd64 X.Org X server -- QXL display driver
ii xserver-xorg-video-radeon 1:18.0.1-1 amd64 X.Org X server -- AMD/ATI Radeon display driver
ii xserver-xorg-video-vesa 1:2.3.4-1build3 amd64 X.Org X server -- VESA display driver
ii xserver-xorg-video-vmware 1:13.2.1-1build1 amd64 X.Org X server -- VMware display driver
Hmm, that stack trace is very unhelpful (NULL pointer dereference from nowhere, so I presume a NULL function pointer). Could you compile https://cgit.freedesktop.org/xorg/driver/xf86-video-intel/ with --enable-debug=full and attach the rather verbose output? That should help pinpoint whereabouts it went into neverneverland.
I did a few other quick tests: it seems to work a bit more reliably if I boot the machine with just the dedicated HDMI plugged in, then only plugging in the USB-C adapter once the machine is booted.
It however seems unrelated to the resolution change, as it crashed with a lower resolution as well:
[ 35.946] (II) intel(0): Modeline "3200x1800"x0.0 248.90 3200 3248 3280 3360 1800 1803 1808 1852 -hsync -vsync (74.1 kHz e)
[ 36.112] (II) intel(0): resizing framebuffer to 5760x1800
[ 36.216] (EE)
[ 36.216] (EE) Backtrace:
[ 36.216] (EE) 0: /usr/lib/xorg/Xorg (xorg_backtrace+0x4d) [0x5588839918ad]
[ 36.216] (EE) 1: /usr/lib/xorg/Xorg (0x5588837d9000+0x1bc649) [0x558883995649]
[ 36.216] (EE) 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f5e78286000+0x12890) [0x7f5e78298890]
[ 36.217] (EE)
[ 36.217] (EE) Segmentation fault at address 0x0
Our comments crossed each other :) I'll build that and get back to you asap.
Created attachment 139607 [details]
Xorg log with full debug of the Intel driver
Here's the log with the full debug on the Intel driver
-- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.
You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/xorg/driver/xf86-video-intel/issues/155.