Re: dix/dispatch.c:4049: AttachOffloadGPU: Assertion `new->current_master == pScreen' failed.

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Dear Michel,


On 2017-08-15 03:19, Michel Dänzer wrote:
On 15/08/17 02:48 AM, Paul Menzel wrote:
On 08/14/17 03:15, Michel Dänzer wrote:
On 11/08/17 01:02 AM, Paul Menzel wrote:
On 08/10/17 15:14, Paul Menzel wrote:

Xorg:
/dev/shm/bee-root/xorg-server/xorg-server-1.19.3-0/source/dix/dispatch.c:4049:

AttachOffloadGPU: Assertion `new->current_master == pScreen' failed.
```

The USB keyboard does not work, and the system has to be controlled
remotely over SSH. Plugging in the DisplayPort cable into the internal Intel graphics ports the Linux messages can be seen, but nothing else works. Stopping GDM does not bring back the TTY screen. The keyboard still does work. Plugging the USB cable out and back in doesn’t fix it
either.

Trying to disable the internal Intel graphics card, did not fix the
problem either.

Blacklisting the module *i915* works around the problem.

Please tell me if you want me to create a bug report for this issue,
and, if yes, what part in the graphics stack this problem belongs to.

It's hard to be sure without seeing a backtrace of the assertion
failure, but I'd say start at
https://bugs.freedesktop.org/enter_bug.cgi?product=xorg&component=Server/Ext/RandR.


Do you know why the stack trace is not present in the X server log?

Because your xserver build doesn't have
https://cgit.freedesktop.org/xorg/xserver/commit/?id=27a6b9f7c84c914d0f5909ec1069d72f5035bc04
(it's only in Git master yet).

With this patch the stack trace is indeed in the log.

```
[…]
Xorg: /dev/shm/bee-root/xorg-server/xorg-server-1.19.3-1/source/dix/dispatch.c:4049: AttachOffloadGPU: Assertion `new->current_master == pScreen' failed.
(EE)
(EE) Backtrace:
(EE) 0: /usr/libexec/Xorg (xorg_backtrace+0x41) [0x580461]
(EE) 1: /usr/libexec/Xorg (0x400000+0x183e09) [0x583e09]
(EE) 2: /lib/libpthread.so.0 (0x7f6f957d3000+0x11a50) [0x7f6f957e4a50]
(EE) 3: /lib/libc.so.6 (gsignal+0x104) [0x7f6f954682f4]
(EE) 4: /lib/libc.so.6 (abort+0x16a) [0x7f6f9546975a]
(EE) 5: /lib/libc.so.6 (0x7f6f95435000+0x2c027) [0x7f6f95461027]
(EE) 6: /lib/libc.so.6 (0x7f6f95435000+0x2c0d2) [0x7f6f954610d2]
(EE) 7: /usr/libexec/Xorg (AttachOffloadGPU+0x6e) [0x4357fe]
(EE) 8: /usr/libexec/Xorg (0x400000+0xa8b76) [0x4a8b76]
(EE) 9: /usr/libexec/Xorg (InitOutput+0x5b3) [0x4775b3]
(EE) 10: /usr/libexec/Xorg (0x400000+0x38cb6) [0x438cb6]
(EE) 11: /lib/libc.so.6 (__libc_start_main+0xf0) [0x7f6f95455520]
(EE) 12: /usr/libexec/Xorg (_start+0x2a) [0x42421a]
(EE)
(EE)
Fatal server error:
(EE) Caught signal 6 (Aborted). Server aborting
(EE)
(EE)
[…]
```

I was able to get a stack trace as root and with GDB. Issue #102222
(dix/dispatch.c:4049: AttachOffloadGPU: Assertion `new->current_master
== pScreen' failed.) tracks this problem now, and the stack traces are
attached there.

Thanks, though it looks like it might actually be a downstream issue.

I don’t have my login credentials handy right now, so I attach the X server
here, and go looking for the credentials.


Kind regards,

Paul
[388062.443] 
X.Org X Server 1.19.3
Release Date: 2017-03-15
[388062.443] X Protocol Version 11, Revision 0
[388062.443] Build Operating System: Linux 4.9.38.mx64.164 x86_64 
[388062.443] Current Operating System: Linux curie.molgen.mpg.de 4.12.5.mx64.169 #1 SMP Tue Aug 8 11:22:02 CEST 2017 x86_64
[388062.443] Kernel command line: init=/bin/systemd BOOT_IMAGE=/boot/bzImage-4.12.5.mx64.169 crashkernel=256M root=LABEL=root ro console=ttyS1,115200n8 console=tty0
[388062.443] Build Date: 15 August 2017  05:40:26AM
[388062.443]  
[388062.443] Current version of pixman: 0.34.0
[388062.443] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[388062.443] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[388062.443] (==) Log file: "/var/log/Xorg.5.log", Time: Tue Aug 15 05:44:59 2017
[388062.444] (==) Using config file: "/etc/X11/xorg.conf"
[388062.444] (==) Using config directory: "/etc/X11/xorg.conf.d"
[388062.444] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[388062.444] (==) No Layout section.  Using the first Screen section.
[388062.444] (==) No screen section available. Using defaults.
[388062.444] (**) |-->Screen "Default Screen Section" (0)
[388062.444] (**) |   |-->Monitor "<default monitor>"
[388062.444] (==) No monitor specified for screen "Default Screen Section".
	Using a default monitor configuration.
[388062.444] (==) Automatically adding devices
[388062.444] (==) Automatically enabling devices
[388062.444] (==) Automatically adding GPU devices
[388062.444] (==) Max clients allowed: 256, resource mask: 0x1fffff
[388062.444] (==) FontPath set to:
	/usr/share/fonts/X11/misc/,
	/usr/share/fonts/X11/TTF/,
	/usr/share/fonts/X11/OTF/,
	/usr/share/fonts/X11/Type1/,
	/usr/share/fonts/X11/100dpi/,
	/usr/share/fonts/X11/75dpi/
[388062.444] (==) ModulePath set to "/usr/lib/xorg/modules"
[388062.444] (II) The server relies on udev to provide the list of input devices.
	If no devices become available, reconfigure udev or disable AutoAddDevices.
[388062.444] (II) Loader magic: 0x809a40
[388062.444] (II) Module ABI versions:
[388062.444] 	X.Org ANSI C Emulation: 0.4
[388062.444] 	X.Org Video Driver: 23.0
[388062.444] 	X.Org XInput driver : 24.1
[388062.444] 	X.Org Server Extension : 10.0
[388062.444] (II) xfree86: Adding drm device (/dev/dri/card0)
[388062.445] (II) xfree86: Adding drm device (/dev/dri/card1)
[388062.446] (--) PCI: (0:0:2:0) 8086:1912:1028:06b7 rev 6, Mem @ 0xf6000000/16777216, 0xd0000000/268435456, I/O @ 0x0000f000/64
[388062.446] (--) PCI:*(0:1:0:0) 1002:6649:1028:230c rev 0, Mem @ 0xe0000000/268435456, 0xf0000000/8388608, 0xf7000000/262144, I/O @ 0x0000e000/256, BIOS @ 0x????????/131072
[388062.446] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[388062.446] (II) LoadModule: "glx"
[388062.446] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[388062.447] (II) Module glx: vendor="X.Org Foundation"
[388062.447] 	compiled for 1.19.3, module version = 1.0.0
[388062.447] 	ABI class: X.Org Server Extension, version 10.0
[388062.447] (II) Applying OutputClass "AMDgpu" to /dev/dri/card0
[388062.447] 	loading driver: amdgpu
[388062.447] (==) Matched amdgpu as autoconfigured driver 0
[388062.447] (==) Matched ati as autoconfigured driver 1
[388062.447] (==) Matched intel as autoconfigured driver 2
[388062.447] (==) Matched ati as autoconfigured driver 3
[388062.447] (==) Matched modesetting as autoconfigured driver 4
[388062.447] (==) Matched fbdev as autoconfigured driver 5
[388062.447] (==) Matched vesa as autoconfigured driver 6
[388062.447] (==) Assigned the driver to the xf86ConfigLayout
[388062.447] (II) LoadModule: "amdgpu"
[388062.447] (II) Loading /usr/lib/xorg/modules/drivers/amdgpu_drv.so
[388062.447] (II) Module amdgpu: vendor="X.Org Foundation"
[388062.447] 	compiled for 1.19.3, module version = 1.3.0
[388062.447] 	Module class: X.Org Video Driver
[388062.447] 	ABI class: X.Org Video Driver, version 23.0
[388062.447] (II) LoadModule: "ati"
[388062.447] (WW) Warning, couldn't open module ati
[388062.447] (II) UnloadModule: "ati"
[388062.447] (II) Unloading ati
[388062.447] (EE) Failed to load module "ati" (module does not exist, 0)
[388062.447] (II) LoadModule: "intel"
[388062.447] (WW) Warning, couldn't open module intel
[388062.447] (II) UnloadModule: "intel"
[388062.447] (II) Unloading intel
[388062.447] (EE) Failed to load module "intel" (module does not exist, 0)
[388062.447] (II) LoadModule: "modesetting"
[388062.447] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[388062.447] (II) Module modesetting: vendor="X.Org Foundation"
[388062.447] 	compiled for 1.19.3, module version = 1.19.3
[388062.447] 	Module class: X.Org Video Driver
[388062.447] 	ABI class: X.Org Video Driver, version 23.0
[388062.447] (II) LoadModule: "fbdev"
[388062.447] (WW) Warning, couldn't open module fbdev
[388062.447] (II) UnloadModule: "fbdev"
[388062.447] (II) Unloading fbdev
[388062.447] (EE) Failed to load module "fbdev" (module does not exist, 0)
[388062.447] (II) LoadModule: "vesa"
[388062.447] (WW) Warning, couldn't open module vesa
[388062.447] (II) UnloadModule: "vesa"
[388062.447] (II) Unloading vesa
[388062.447] (EE) Failed to load module "vesa" (module does not exist, 0)
[388062.447] (II) AMDGPU: Driver for AMD Radeon:
	All GPUs supported by the amdgpu kernel driver
[388062.447] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[388062.447] (--) using VT number 8

[388062.450] (II) [KMS] Kernel modesetting enabled.
[388062.451] (II) modeset(G0): using drv /dev/dri/card1
[388062.451] (II) AMDGPU(0): Creating default Display subsection in Screen section
	"Default Screen Section" for depth/fbbpp 24/32
[388062.451] (==) AMDGPU(0): Depth 24, (--) framebuffer bpp 32
[388062.451] (II) AMDGPU(0): Pixel depth = 24 bits stored in 4 bytes (32 bpp pixmaps)
[388062.451] (==) AMDGPU(0): Default visual is TrueColor
[388062.451] (==) AMDGPU(0): RGB weight 888
[388062.451] (II) AMDGPU(0): Using 8 bits per RGB (8 bit DAC)
[388062.451] (--) AMDGPU(0): Chipset: "AMD FirePro W5100" (ChipID = 0x6649)
[388062.451] (II) Loading sub module "fb"
[388062.451] (II) LoadModule: "fb"
[388062.451] (II) Loading /usr/lib/xorg/modules/libfb.so
[388062.451] (II) Module fb: vendor="X.Org Foundation"
[388062.451] 	compiled for 1.19.3, module version = 1.0.0
[388062.451] 	ABI class: X.Org ANSI C Emulation, version 0.4
[388062.451] (II) Loading sub module "dri2"
[388062.451] (II) LoadModule: "dri2"
[388062.451] (II) Module "dri2" already built-in
[388062.509] (II) Loading sub module "glamoregl"
[388062.509] (II) LoadModule: "glamoregl"
[388062.509] (II) Loading /usr/lib/xorg/modules/libglamoregl.so
[388062.520] (II) Module glamoregl: vendor="X.Org Foundation"
[388062.520] 	compiled for 1.19.3, module version = 1.0.0
[388062.520] 	ABI class: X.Org ANSI C Emulation, version 0.4
[388062.520] (II) glamor: OpenGL accelerated X.org driver based.
[388062.521] (II) glamor: EGL version 1.4 (DRI2):
[388062.522] (II) AMDGPU(0): glamor detected, initialising EGL layer.
[388062.522] (==) AMDGPU(0): TearFree property default: auto
[388062.522] (II) AMDGPU(0): KMS Pageflipping: enabled
[388062.548] (II) AMDGPU(0): Output DisplayPort-0 has no monitor section
[388062.574] (II) AMDGPU(0): Output DisplayPort-1 has no monitor section
[388062.600] (II) AMDGPU(0): Output DisplayPort-2 has no monitor section
[388062.633] (II) AMDGPU(0): Output DisplayPort-3 has no monitor section
[388062.659] (II) AMDGPU(0): EDID for output DisplayPort-0
[388062.685] (II) AMDGPU(0): EDID for output DisplayPort-1
[388062.711] (II) AMDGPU(0): EDID for output DisplayPort-2
[388062.744] (II) AMDGPU(0): EDID for output DisplayPort-3
[388062.744] (II) AMDGPU(0): Manufacturer: GSM  Model: 4e7f  Serial#: 206397
[388062.744] (II) AMDGPU(0): Year: 2008  Week: 5
[388062.744] (II) AMDGPU(0): EDID Version: 1.3
[388062.744] (II) AMDGPU(0): Digital Display Input
[388062.744] (II) AMDGPU(0): Max Image Size [cm]: horiz.: 43  vert.: 27
[388062.744] (II) AMDGPU(0): Gamma: 2.20
[388062.744] (II) AMDGPU(0): DPMS capabilities: StandBy Suspend Off
[388062.744] (II) AMDGPU(0): Supported color encodings: RGB 4:4:4 YCrCb 4:4:4 
[388062.744] (II) AMDGPU(0): First detailed timing is preferred mode
[388062.744] (II) AMDGPU(0): redX: 0.649 redY: 0.338   greenX: 0.289 greenY: 0.609
[388062.744] (II) AMDGPU(0): blueX: 0.146 blueY: 0.070   whiteX: 0.313 whiteY: 0.329
[388062.744] (II) AMDGPU(0): Supported established timings:
[388062.744] (II) AMDGPU(0): 720x400@70Hz
[388062.744] (II) AMDGPU(0): 640x480@60Hz
[388062.744] (II) AMDGPU(0): 640x480@75Hz
[388062.744] (II) AMDGPU(0): 800x600@56Hz
[388062.744] (II) AMDGPU(0): 800x600@60Hz
[388062.744] (II) AMDGPU(0): 800x600@75Hz
[388062.744] (II) AMDGPU(0): 832x624@75Hz
[388062.744] (II) AMDGPU(0): 1024x768@60Hz
[388062.744] (II) AMDGPU(0): 1024x768@75Hz
[388062.744] (II) AMDGPU(0): 1280x1024@75Hz
[388062.744] (II) AMDGPU(0): 1152x864@75Hz
[388062.744] (II) AMDGPU(0): Manufacturer's mask: 0
[388062.744] (II) AMDGPU(0): Supported standard timings:
[388062.744] (II) AMDGPU(0): #0: hsize: 1440  vsize 900  refresh: 60  vid: 149
[388062.744] (II) AMDGPU(0): #1: hsize: 1280  vsize 1024  refresh: 60  vid: 32897
[388062.744] (II) AMDGPU(0): #2: hsize: 1280  vsize 960  refresh: 60  vid: 16513
[388062.744] (II) AMDGPU(0): #3: hsize: 1152  vsize 864  refresh: 75  vid: 20337
[388062.744] (II) AMDGPU(0): Supported detailed timing:
[388062.744] (II) AMDGPU(0): clock: 119.0 MHz   Image Size:  434 x 270 mm
[388062.744] (II) AMDGPU(0): h_active: 1680  h_sync: 1728  h_sync_end 1760 h_blank_end 1840 h_border: 0
[388062.744] (II) AMDGPU(0): v_active: 1050  v_sync: 1053  v_sync_end 1059 v_blanking: 1080 v_border: 0
[388062.744] (II) AMDGPU(0): Supported detailed timing:
[388062.744] (II) AMDGPU(0): clock: 146.2 MHz   Image Size:  434 x 270 mm
[388062.744] (II) AMDGPU(0): h_active: 1680  h_sync: 1784  h_sync_end 1960 h_blank_end 2240 h_border: 0
[388062.744] (II) AMDGPU(0): v_active: 1050  v_sync: 1053  v_sync_end 1059 v_blanking: 1089 v_border: 0
[388062.744] (II) AMDGPU(0): Ranges: V min: 56 V max: 75 Hz, H min: 30 H max: 83 kHz, PixClock max 155 MHz
[388062.744] (II) AMDGPU(0): Monitor name: W2042
[388062.744] (II) AMDGPU(0): EDID (in hex):
[388062.744] (II) AMDGPU(0): 	00ffffffffffff001e6d7f4e3d260300
[388062.744] (II) AMDGPU(0): 	05120103ea2b1b78ea6085a6564a9c25
[388062.744] (II) AMDGPU(0): 	125054a76b80950081808140714f0101
[388062.744] (II) AMDGPU(0): 	0101010101017c2e90a0601a1e403020
[388062.744] (II) AMDGPU(0): 	3600b20e1100001a21399030621a2740
[388062.744] (II) AMDGPU(0): 	68b03600b20e1100001c000000fd0038
[388062.744] (II) AMDGPU(0): 	4b1e530f000a202020202020000000fc
[388062.744] (II) AMDGPU(0): 	0057323034320a20202020202020001e
[388062.744] (II) AMDGPU(0): Printing probed modes for output DisplayPort-3
[388062.744] (II) AMDGPU(0): Modeline "1680x1050"x59.9  119.00  1680 1728 1760 1840  1050 1053 1059 1080 +hsync -vsync (64.7 kHz eP)
[388062.744] (II) AMDGPU(0): Modeline "1680x1050"x60.0  146.25  1680 1784 1960 2240  1050 1053 1059 1089 -hsync +vsync (65.3 kHz e)
[388062.744] (II) AMDGPU(0): Modeline "1280x1024"x75.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
[388062.744] (II) AMDGPU(0): Modeline "1280x1024"x60.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)
[388062.744] (II) AMDGPU(0): Modeline "1440x900"x59.9   88.75  1440 1488 1520 1600  900 903 909 926 +hsync -vsync (55.5 kHz e)
[388062.744] (II) AMDGPU(0): Modeline "1280x960"x60.0  108.00  1280 1376 1488 1800  960 961 964 1000 +hsync +vsync (60.0 kHz e)
[388062.744] (II) AMDGPU(0): Modeline "1152x864"x75.0  108.00  1152 1216 1344 1600  864 865 868 900 +hsync +vsync (67.5 kHz e)
[388062.744] (II) AMDGPU(0): Modeline "1024x768"x75.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
[388062.744] (II) AMDGPU(0): Modeline "1024x768"x60.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
[388062.744] (II) AMDGPU(0): Modeline "832x624"x74.6   57.28  832 864 928 1152  624 625 628 667 -hsync -vsync (49.7 kHz e)
[388062.744] (II) AMDGPU(0): Modeline "800x600"x75.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
[388062.744] (II) AMDGPU(0): Modeline "800x600"x60.3   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
[388062.744] (II) AMDGPU(0): Modeline "800x600"x56.2   36.00  800 824 896 1024  600 601 603 625 +hsync +vsync (35.2 kHz e)
[388062.744] (II) AMDGPU(0): Modeline "640x480"x75.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
[388062.744] (II) AMDGPU(0): Modeline "640x480"x59.9   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
[388062.744] (II) AMDGPU(0): Modeline "720x400"x70.1   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)
[388062.744] (II) AMDGPU(0): Output DisplayPort-0 disconnected
[388062.744] (II) AMDGPU(0): Output DisplayPort-1 disconnected
[388062.744] (II) AMDGPU(0): Output DisplayPort-2 disconnected
[388062.744] (II) AMDGPU(0): Output DisplayPort-3 connected
[388062.744] (II) AMDGPU(0): Using exact sizes for initial modes
[388062.744] (II) AMDGPU(0): Output DisplayPort-3 using initial mode 1680x1050 +0+0
[388062.744] (II) AMDGPU(0): mem size init: gart size :ffecd000 vram size: s:feee3000 visible:eee3000
[388062.744] (==) AMDGPU(0): DPI set to (96, 96)
[388062.744] (==) AMDGPU(0): Using gamma correction (1.0, 1.0, 1.0)
[388062.745] (II) Loading sub module "ramdac"
[388062.745] (II) LoadModule: "ramdac"
[388062.745] (II) Module "ramdac" already built-in
[388062.745] (==) modeset(G0): Depth 24, (==) framebuffer bpp 32
[388062.745] (==) modeset(G0): RGB weight 888
[388062.745] (==) modeset(G0): Default visual is TrueColor
[388062.745] (II) Loading sub module "glamoregl"
[388062.745] (II) LoadModule: "glamoregl"
[388062.745] (II) Loading /usr/lib/xorg/modules/libglamoregl.so
[388062.745] (II) Module glamoregl: vendor="X.Org Foundation"
[388062.745] 	compiled for 1.19.3, module version = 1.0.0
[388062.745] 	ABI class: X.Org ANSI C Emulation, version 0.4
[388062.745] (II) glamor: OpenGL accelerated X.org driver based.
[388062.748] (II) glamor: EGL version 1.4 (DRI2):
[388062.749] (II) modeset(G0): glamor initialized
[388062.757] (II) modeset(G0): Output HDMI-1-1 has no monitor section
[388062.759] (II) modeset(G0): Output DP-1-5 has no monitor section
[388062.767] (II) modeset(G0): Output HDMI-1-2 has no monitor section
[388062.769] (II) modeset(G0): Output DP-1-6 has no monitor section
[388062.777] (II) modeset(G0): Output HDMI-1-3 has no monitor section
[388062.779] (II) modeset(G0): Output DP-1-7 has no monitor section
[388062.787] (II) modeset(G0): EDID for output HDMI-1-1
[388062.789] (II) modeset(G0): EDID for output DP-1-5
[388062.797] (II) modeset(G0): EDID for output HDMI-1-2
[388062.799] (II) modeset(G0): EDID for output DP-1-6
[388062.807] (II) modeset(G0): EDID for output HDMI-1-3
[388062.809] (II) modeset(G0): EDID for output DP-1-7
[388062.809] (==) modeset(G0): Using gamma correction (1.0, 1.0, 1.0)
[388062.809] (==) modeset(G0): DPI set to (96, 96)
[388062.809] (II) Loading sub module "fb"
[388062.809] (II) LoadModule: "fb"
[388062.809] (II) Loading /usr/lib/xorg/modules/libfb.so
[388062.809] (II) Module fb: vendor="X.Org Foundation"
[388062.809] 	compiled for 1.19.3, module version = 1.0.0
[388062.809] 	ABI class: X.Org ANSI C Emulation, version 0.4
[388062.809] (--) Depth 24 pixmap format is 32 bpp
[388062.855] (==) modeset(G0): Backing store enabled
[388062.855] (==) modeset(G0): Silken mouse enabled
[388062.855] (II) modeset(G0): RandR 1.2 enabled, ignore the following RandR disabled message.
[388062.855] (==) modeset(G0): DPMS enabled
[388062.855] (II) modeset(G0): [DRI2] Setup complete
[388062.855] (II) modeset(G0): [DRI2]   DRI driver: i965
[388062.855] (II) modeset(G0): [DRI2]   VDPAU driver: i965
[388062.855] (II) AMDGPU(0): [DRI2] Setup complete
[388062.855] (II) AMDGPU(0): [DRI2]   DRI driver: radeonsi
[388062.855] (II) AMDGPU(0): [DRI2]   VDPAU driver: radeonsi
[388062.855] (II) AMDGPU(0): Front buffer pitch: 6912 bytes
[388062.855] (II) AMDGPU(0): SYNC extension fences enabled
[388062.855] (II) AMDGPU(0): Present extension enabled
[388062.856] (==) AMDGPU(0): DRI3 enabled
[388062.856] (==) AMDGPU(0): Backing store enabled
[388062.856] (II) AMDGPU(0): Direct rendering enabled
[388062.857] (II) AMDGPU(0): Use GLAMOR acceleration.
[388062.857] (II) AMDGPU(0): Acceleration enabled
[388062.857] (==) AMDGPU(0): DPMS enabled
[388062.857] (==) AMDGPU(0): Silken mouse enabled
[388062.857] (II) AMDGPU(0): Set up textured video (glamor)
[388062.857] (II) AMDGPU(0): RandR 1.2 enabled, ignore the following RandR disabled message.
[388062.857] (--) RandR disabled
[388062.857] (EE) 
[388062.857] (EE) Backtrace:
[388062.857] (EE) 0: /usr/libexec/Xorg (xorg_backtrace+0x41) [0x580461]
[388062.857] (EE) 1: /usr/libexec/Xorg (0x400000+0x183e09) [0x583e09]
[388062.857] (EE) 2: /lib/libpthread.so.0 (0x7f6f957d3000+0x11a50) [0x7f6f957e4a50]
[388062.857] (EE) 3: /lib/libc.so.6 (gsignal+0x104) [0x7f6f954682f4]
[388062.857] (EE) 4: /lib/libc.so.6 (abort+0x16a) [0x7f6f9546975a]
[388062.857] (EE) 5: /lib/libc.so.6 (0x7f6f95435000+0x2c027) [0x7f6f95461027]
[388062.857] (EE) 6: /lib/libc.so.6 (0x7f6f95435000+0x2c0d2) [0x7f6f954610d2]
[388062.857] (EE) 7: /usr/libexec/Xorg (AttachOffloadGPU+0x6e) [0x4357fe]
[388062.857] (EE) 8: /usr/libexec/Xorg (0x400000+0xa8b76) [0x4a8b76]
[388062.857] (EE) 9: /usr/libexec/Xorg (InitOutput+0x5b3) [0x4775b3]
[388062.857] (EE) 10: /usr/libexec/Xorg (0x400000+0x38cb6) [0x438cb6]
[388062.857] (EE) 11: /lib/libc.so.6 (__libc_start_main+0xf0) [0x7f6f95455520]
[388062.857] (EE) 12: /usr/libexec/Xorg (_start+0x2a) [0x42421a]
[388062.857] (EE) 
[388062.857] (EE) 
Fatal server error:
[388062.857] (EE) Caught signal 6 (Aborted). Server aborting
[388062.857] (EE) 
[388062.857] (EE) 
Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
[388062.857] (EE) Please also check the log file at "/var/log/Xorg.5.log" for additional information.
[388062.857] (EE) 
[388062.863] (EE) Server terminated with error (1). Closing log file.
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