Hi,
Machine is amd ryzen 5 3400G Radeon Vega Graphics
Updated kaos to kernel 5.10.7-1 next with 5.10.6-1 linux
Both kernels boot but hang.
Entering console and exploring shows
Sddm failed to read display number from pipe
Sddm could not start display server on vt 1

File system is up. Network is up. NFS mounts OK.

Please can you help restore the graphical display.
Thanks, JJ

Xorg.0.log looks like

[     2.794] (--) Log file renamed from "/var/log/Xorg.pid-552.log" to "/var/log/Xorg.0.log"
[     2.794] 
X.Org X Server 1.20.10
X Protocol Version 11, Revision 0
[     2.794] Build Operating System: Linux 5.9.11-1-next x86_64 
[     2.794] Current Operating System: Linux john-picasso 5.10.7-1-next #1 SMP PREEMPT Tue Jan 12 21:31:24 UTC 2021 x86_64
[     2.794] Kernel command line: initrd=\initramfs-linux-next.img quiet systemd.show_status=0 root=UUID=3737dae5-fd25-4abb-bfcb-f5f22c5200f6 rw
[     2.794] Build Date: 01 December 2020  09:07:23PM
[     2.794]  
[     2.794] Current version of pixman: 0.40.0
[     2.794] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[     2.794] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[     2.794] (==) Log file: "/var/log/Xorg.0.log", Time: Fri Jan 15 19:09:17 2021
[     2.795] (==) Using config directory: "/etc/X11/xorg.conf.d"
[     2.795] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[     2.795] (==) No Layout section.  Using the first Screen section.
[     2.795] (==) No screen section available. Using defaults.
[     2.795] (**) |-->Screen "Default Screen Section" (0)
[     2.795] (**) |   |-->Monitor "<default monitor>"
[     2.795] (==) No monitor specified for screen "Default Screen Section".
	Using a default monitor configuration.
[     2.795] (==) Automatically adding devices
[     2.795] (==) Automatically enabling devices
[     2.795] (==) Automatically adding GPU devices
[     2.795] (==) Max clients allowed: 256, resource mask: 0x1fffff
[     2.796] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/OTF/".
[     2.796] 	Entry deleted from font path.
[     2.796] 	(Run 'mkfontdir' on "/usr/share/fonts/OTF/").
[     2.796] (WW) The directory "/usr/share/fonts/Type1/" does not exist.
[     2.796] 	Entry deleted from font path.
[     2.797] (==) FontPath set to:
	/usr/share/fonts/misc/,
	/usr/share/fonts/TTF/,
	/usr/share/fonts/100dpi/,
	/usr/share/fonts/75dpi/
[     2.797] (==) ModulePath set to "/usr/lib/xorg/modules"
[     2.797] (II) The server relies on udev to provide the list of input devices.
	If no devices become available, reconfigure udev or disable AutoAddDevices.
[     2.797] (II) Loader magic: 0x61dd40
[     2.797] (II) Module ABI versions:
[     2.797] 	X.Org ANSI C Emulation: 0.4
[     2.797] 	X.Org Video Driver: 24.1
[     2.797] 	X.Org XInput driver : 24.1
[     2.797] 	X.Org Server Extension : 10.0
[     2.798] (++) using VT number 1

[     2.798] (II) systemd-logind: logind integration requires -keeptty and -keeptty was not provided, disabling logind integration
[     2.798] (II) xfree86: Adding drm device (/dev/dri/card0)
[     2.802] (--) PCI:*(9@0:0:0) 1002:15d8:1043:876b rev 200, Mem @ 0xe0000000/268435456, 0xf0000000/2097152, 0xfca00000/524288, I/O @ 0x0000e000/256, BIOS @ 0x????????/131072
[     2.802] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[     2.802] (II) LoadModule: "glx"
[     2.803] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[     2.806] (II) Module glx: vendor="X.Org Foundation"
[     2.806] 	compiled for 1.20.10, module version = 1.0.0
[     2.806] 	ABI class: X.Org Server Extension, version 10.0
[     2.806] (II) Applying OutputClass "AMDgpu" to /dev/dri/card0
[     2.806] 	loading driver: amdgpu
[     2.806] (==) Matched amdgpu as autoconfigured driver 0
[     2.806] (==) Matched ati as autoconfigured driver 1
[     2.806] (==) Matched modesetting as autoconfigured driver 2
[     2.806] (==) Matched fbdev as autoconfigured driver 3
[     2.806] (==) Matched vesa as autoconfigured driver 4
[     2.806] (==) Assigned the driver to the xf86ConfigLayout
[     2.806] (II) LoadModule: "amdgpu"
[     2.806] (II) Loading /usr/lib/xorg/modules/drivers/amdgpu_drv.so
[     2.808] (II) Module amdgpu: vendor="X.Org Foundation"
[     2.808] 	compiled for 1.20.5, module version = 19.1.0
[     2.808] 	Module class: X.Org Video Driver
[     2.808] 	ABI class: X.Org Video Driver, version 24.0
[     2.808] (II) LoadModule: "ati"
[     2.809] (WW) Warning, couldn't open module ati
[     2.809] (EE) Failed to load module "ati" (module does not exist, 0)
[     2.809] (II) LoadModule: "modesetting"
[     2.809] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[     2.809] (II) Module modesetting: vendor="X.Org Foundation"
[     2.809] 	compiled for 1.20.10, module version = 1.20.10
[     2.809] 	Module class: X.Org Video Driver
[     2.809] 	ABI class: X.Org Video Driver, version 24.1
[     2.809] (II) LoadModule: "fbdev"
[     2.809] (WW) Warning, couldn't open module fbdev
[     2.809] (EE) Failed to load module "fbdev" (module does not exist, 0)
[     2.809] (II) LoadModule: "vesa"
[     2.809] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[     2.810] (II) Module vesa: vendor="X.Org Foundation"
[     2.810] 	compiled for 1.20.9, module version = 2.5.0
[     2.810] 	Module class: X.Org Video Driver
[     2.810] 	ABI class: X.Org Video Driver, version 24.1
[     2.810] (II) AMDGPU: Driver for AMD Radeon:
	All GPUs supported by the amdgpu kernel driver
[     2.810] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[     2.810] (II) VESA: driver for VESA chipsets: vesa
[     2.810] (II) AMDGPU(0): [KMS] Kernel modesetting enabled.
[     2.810] (WW) Falling back to old probe method for modesetting
[     2.810] (II) AMDGPU(0): Creating default Display subsection in Screen section
	"Default Screen Section" for depth/fbbpp 24/32
[     2.810] (==) AMDGPU(0): Depth 24, (--) framebuffer bpp 32
[     2.810] (II) AMDGPU(0): Pixel depth = 24 bits stored in 4 bytes (32 bpp pixmaps)
[     2.810] (==) AMDGPU(0): Default visual is TrueColor
[     2.810] (==) AMDGPU(0): RGB weight 888
[     2.810] (II) AMDGPU(0): Using 8 bits per RGB (8 bit DAC)
[     2.810] (--) AMDGPU(0): Chipset: "AMD Radeon(TM) Vega 11 Graphics" (ChipID = 0x15d8)
[     2.810] (II) Loading sub module "fb"
[     2.810] (II) LoadModule: "fb"
[     2.810] (II) Loading /usr/lib/xorg/modules/libfb.so
[     2.811] (II) Module fb: vendor="X.Org Foundation"
[     2.811] 	compiled for 1.20.10, module version = 1.0.0
[     2.811] 	ABI class: X.Org ANSI C Emulation, version 0.4
[     2.811] (II) Loading sub module "dri2"
[     2.811] (II) LoadModule: "dri2"
[     2.811] (II) Module "dri2" already built-in
[     2.813] (WW) AMDGPU(0): gbm_create_device returned NULL, using ShadowFB
[     2.813] (II) Loading sub module "shadow"
[     2.813] (II) LoadModule: "shadow"
[     2.813] (II) Loading /usr/lib/xorg/modules/libshadow.so
[     2.814] (II) Module shadow: vendor="X.Org Foundation"
[     2.814] 	compiled for 1.20.10, module version = 1.1.0
[     2.814] 	ABI class: X.Org ANSI C Emulation, version 0.4
[     2.814] (II) AMDGPU(0): KMS Pageflipping: enabled
[     2.814] (II) AMDGPU(0): Output HDMI-A-0 has no monitor section
[     2.814] (II) AMDGPU(0): Output DisplayPort-0 has no monitor section
[     2.817] (II) AMDGPU(0): EDID for output HDMI-A-0
[     2.817] (II) AMDGPU(0): Manufacturer: DEL  Model: 40e8  Serial#: 909127756
[     2.817] (II) AMDGPU(0): Year: 2017  Week: 22
[     2.817] (II) AMDGPU(0): EDID Version: 1.3
[     2.817] (II) AMDGPU(0): Digital Display Input
[     2.817] (II) AMDGPU(0): Max Image Size [cm]: horiz.: 53  vert.: 30
[     2.817] (II) AMDGPU(0): Gamma: 2.20
[     2.817] (II) AMDGPU(0): DPMS capabilities: StandBy Suspend Off
[     2.817] (II) AMDGPU(0): Supported color encodings: RGB 4:4:4 YCrCb 4:4:4 
[     2.817] (II) AMDGPU(0): First detailed timing is preferred mode
[     2.817] (II) AMDGPU(0): redX: 0.640 redY: 0.330   greenX: 0.300 greenY: 0.600
[     2.817] (II) AMDGPU(0): blueX: 0.150 blueY: 0.060   whiteX: 0.313 whiteY: 0.329
[     2.817] (II) AMDGPU(0): Supported established timings:
[     2.817] (II) AMDGPU(0): 720x400@70Hz
[     2.817] (II) AMDGPU(0): 640x480@60Hz
[     2.817] (II) AMDGPU(0): 640x480@75Hz
[     2.817] (II) AMDGPU(0): 800x600@60Hz
[     2.817] (II) AMDGPU(0): 800x600@75Hz
[     2.817] (II) AMDGPU(0): 1024x768@60Hz
[     2.817] (II) AMDGPU(0): 1024x768@75Hz
[     2.817] (II) AMDGPU(0): 1280x1024@75Hz
[     2.817] (II) AMDGPU(0): Manufacturer's mask: 0
[     2.817] (II) AMDGPU(0): Supported standard timings:
[     2.817] (II) AMDGPU(0): #0: hsize: 1152  vsize 864  refresh: 75  vid: 20337
[     2.817] (II) AMDGPU(0): #1: hsize: 1280  vsize 1024  refresh: 60  vid: 32897
[     2.817] (II) AMDGPU(0): #2: hsize: 1600  vsize 1200  refresh: 60  vid: 16553
[     2.817] (II) AMDGPU(0): #3: hsize: 1920  vsize 1080  refresh: 60  vid: 49361
[     2.817] (II) AMDGPU(0): Supported detailed timing:
[     2.817] (II) AMDGPU(0): clock: 148.5 MHz   Image Size:  527 x 296 mm
[     2.817] (II) AMDGPU(0): h_active: 1920  h_sync: 2008  h_sync_end 2052 h_blank_end 2200 h_border: 0
[     2.817] (II) AMDGPU(0): v_active: 1080  v_sync: 1084  v_sync_end 1089 v_blanking: 1125 v_border: 0
[     2.817] (II) AMDGPU(0): Serial No: GY9P2763600L
[     2.817] (II) AMDGPU(0): Monitor name: DELL U2417H
[     2.817] (II) AMDGPU(0): Ranges: V min: 50 V max: 75 Hz, H min: 30 H max: 83 kHz, PixClock max 175 MHz
[     2.817] (II) AMDGPU(0): Supported detailed timing:
[     2.817] (II) AMDGPU(0): clock: 148.5 MHz   Image Size:  527 x 296 mm
[     2.817] (II) AMDGPU(0): h_active: 1920  h_sync: 2008  h_sync_end 2052 h_blank_end 2200 h_border: 0
[     2.817] (II) AMDGPU(0): v_active: 1080  v_sync: 1084  v_sync_end 1089 v_blanking: 1125 v_border: 0
[     2.817] (II) AMDGPU(0): Supported detailed timing:
[     2.817] (II) AMDGPU(0): clock: 74.2 MHz   Image Size:  527 x 296 mm
[     2.817] (II) AMDGPU(0): h_active: 1920  h_sync: 2008  h_sync_end 2052 h_blank_end 2200 h_border: 0
[     2.817] (II) AMDGPU(0): v_active: 540  v_sync: 542  v_sync_end 547 v_blanking: 562 v_border: 0
[     2.817] (II) AMDGPU(0): Supported detailed timing:
[     2.817] (II) AMDGPU(0): clock: 74.2 MHz   Image Size:  527 x 296 mm
[     2.817] (II) AMDGPU(0): h_active: 1280  h_sync: 1390  h_sync_end 1430 h_blank_end 1650 h_border: 0
[     2.817] (II) AMDGPU(0): v_active: 720  v_sync: 725  v_sync_end 730 v_blanking: 750 v_border: 0
[     2.817] (II) AMDGPU(0): Supported detailed timing:
[     2.817] (II) AMDGPU(0): clock: 27.0 MHz   Image Size:  527 x 296 mm
[     2.817] (II) AMDGPU(0): h_active: 720  h_sync: 736  h_sync_end 798 h_blank_end 858 h_border: 0
[     2.817] (II) AMDGPU(0): v_active: 480  v_sync: 489  v_sync_end 495 v_blanking: 525 v_border: 0
[     2.817] (II) AMDGPU(0): Number of EDID sections to follow: 1
[     2.817] (II) AMDGPU(0): EDID (in hex):
[     2.817] (II) AMDGPU(0): 	00ffffffffffff0010ace8404c303036
[     2.817] (II) AMDGPU(0): 	161b010380351e78eaee95a3544c9926
[     2.817] (II) AMDGPU(0): 	0f5054a54b00714f8180a940d1c00101
[     2.817] (II) AMDGPU(0): 	010101010101023a801871382d40582c
[     2.817] (II) AMDGPU(0): 	45000f282100001e000000ff00475939
[     2.817] (II) AMDGPU(0): 	50323736333630304c0a000000fc0044
[     2.817] (II) AMDGPU(0): 	454c4c205532343137480a20000000fd
[     2.817] (II) AMDGPU(0): 	00324b1e5311000a20202020202001c3
[     2.817] (II) AMDGPU(0): 	020326f14f9005040302071601061112
[     2.817] (II) AMDGPU(0): 	1513141f2309070765030c0010008301
[     2.817] (II) AMDGPU(0): 	0000e3050000023a801871382d40582c
[     2.817] (II) AMDGPU(0): 	45000f282100001e011d8018711c1620
[     2.817] (II) AMDGPU(0): 	582c25000f282100009e011d007251d0
[     2.817] (II) AMDGPU(0): 	1e206e2855000f282100001e8c0ad08a
[     2.817] (II) AMDGPU(0): 	20e02d10103e96000f28210000180000
[     2.817] (II) AMDGPU(0): 	00000000000000000000000000000019
[     2.817] (II) AMDGPU(0): Printing probed modes for output HDMI-A-0
[     2.817] (II) AMDGPU(0): Modeline "1920x1080"x60.0  148.50  1920 2008 2052 2200  1080 1084 1089 1125 +hsync +vsync (67.5 kHz eP)
[     2.817] (II) AMDGPU(0): Modeline "1920x1080"x50.0  148.50  1920 2448 2492 2640  1080 1084 1089 1125 +hsync +vsync (56.2 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "1920x1080"x59.9  148.35  1920 2008 2052 2200  1080 1084 1089 1125 +hsync +vsync (67.4 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "1600x1200"x60.0  162.00  1600 1664 1856 2160  1200 1201 1204 1250 +hsync +vsync (75.0 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "1680x1050"x60.0  148.50  1680 2008 2052 2200  1050 1084 1089 1125 +hsync +vsync (67.5 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "1280x1024"x75.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "1280x1024"x60.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "1440x900"x60.0  148.50  1440 2008 2052 2200  900 1084 1089 1125 +hsync +vsync (67.5 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "1280x800"x60.0  148.50  1280 2008 2052 2200  800 1084 1089 1125 +hsync +vsync (67.5 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "1152x864"x75.0  108.00  1152 1216 1344 1600  864 865 868 900 +hsync +vsync (67.5 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "1280x720"x60.0   74.25  1280 1390 1430 1650  720 725 730 750 +hsync +vsync (45.0 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "1280x720"x50.0   74.25  1280 1720 1760 1980  720 725 730 750 +hsync +vsync (37.5 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "1280x720"x59.9   74.18  1280 1390 1430 1650  720 725 730 750 +hsync +vsync (45.0 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "1024x768"x75.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "1024x768"x60.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "800x600"x75.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "800x600"x60.3   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "720x576"x50.0   27.00  720 732 796 864  576 581 586 625 -hsync -vsync (31.2 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "720x480"x60.0   27.03  720 736 798 858  480 489 495 525 -hsync -vsync (31.5 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "720x480"x59.9   27.00  720 736 798 858  480 489 495 525 -hsync -vsync (31.5 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "640x480"x75.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "640x480"x60.0   25.20  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "640x480"x59.9   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
[     2.817] (II) AMDGPU(0): Modeline "720x400"x70.1   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)
[     2.817] (II) AMDGPU(0): EDID for output DisplayPort-0
[     2.817] (II) AMDGPU(0): Output HDMI-A-0 connected
[     2.817] (II) AMDGPU(0): Output DisplayPort-0 disconnected
[     2.817] (II) AMDGPU(0): Using exact sizes for initial modes
[     2.817] (II) AMDGPU(0): Output HDMI-A-0 using initial mode 1920x1080 +0+0
[     2.817] (II) AMDGPU(0): mem size init: gart size :bf6ca000 vram size: s:7e40b000 visible:7e40b000
[     2.817] (==) AMDGPU(0): DPI set to (96, 96)
[     2.817] (==) AMDGPU(0): Using gamma correction (1.0, 1.0, 1.0)
[     2.817] (II) Loading sub module "ramdac"
[     2.817] (II) LoadModule: "ramdac"
[     2.817] (II) Module "ramdac" already built-in
[     2.817] (II) UnloadModule: "modesetting"
[     2.817] (II) Unloading modesetting
[     2.817] (II) UnloadModule: "vesa"
[     2.817] (II) Unloading vesa
[     2.818] (II) AMDGPU(0): Front buffer pitch: 8192 bytes
[     2.818] (==) AMDGPU(0): DRI3 disabled
[     2.818] (==) AMDGPU(0): Backing store enabled
[     2.818] (WW) AMDGPU(0): Direct rendering disabled
[     2.818] (II) AMDGPU(0): 2D and 3D acceleration disabled
[     2.818] (==) AMDGPU(0): DPMS enabled
[     2.818] (==) AMDGPU(0): Silken mouse enabled
[     2.834] (II) Initializing extension Generic Event Extension
[     2.834] (II) Initializing extension SHAPE
[     2.834] (II) Initializing extension MIT-SHM
[     2.834] (II) Initializing extension XInputExtension
[     2.835] (II) Initializing extension XTEST
[     2.835] (II) Initializing extension BIG-REQUESTS
[     2.835] (II) Initializing extension SYNC
[     2.835] (II) Initializing extension XKEYBOARD
[     2.835] (II) Initializing extension XC-MISC
[     2.835] (II) Initializing extension SECURITY
[     2.835] (II) Initializing extension XFIXES
[     2.835] (II) Initializing extension RENDER
[     2.836] (II) Initializing extension RANDR
[     2.836] (II) Initializing extension COMPOSITE
[     2.836] (II) Initializing extension DAMAGE
[     2.836] (II) Initializing extension MIT-SCREEN-SAVER
[     2.836] (II) Initializing extension DOUBLE-BUFFER
[     2.837] (II) Initializing extension RECORD
[     2.837] (II) Initializing extension DPMS
[     2.837] (II) Initializing extension Present
[     2.837] (II) Initializing extension DRI3
[     2.837] (II) Initializing extension X-Resource
[     2.837] (II) Initializing extension XVideo
[     2.837] (II) Initializing extension XVideo-MotionCompensation
[     2.837] (II) Initializing extension GLX
[     2.838] (II) AIGLX: Screen 0 is not DRI2 capable
[     2.838] (EE) AIGLX error: dlopen of /usr/lib/dri/swrast_dri.so failed (libLLVM-10.so: cannot open shared object file: No such file or directory)
[     2.838] (EE) AIGLX error: unable to load driver swrast
[     2.838] (EE) GLX: could not load software renderer
[     2.838] (II) GLX: no usable GL providers found for screen 0
[     2.838] (II) Initializing extension XFree86-VidModeExtension
[     2.838] (II) Initializing extension XFree86-DGA
[     2.838] (II) Initializing extension XFree86-DRI
[     2.839] (II) Initializing extension DRI2
[     2.839] (II) AMDGPU(0): Setting screen physical size to 508 x 285
[     2.903] (EE) 
[     2.903] (EE) Backtrace:
[     2.904] (EE) 0: /usr/lib/xorg-server/Xorg (OsLookupColor+0x135) [0x592415]
[     2.904] (EE) 1: /lib/libpthread.so.0 (funlockfile+0x50) [0x7f0ea12874a0]
[     2.904] (EE) 2: /lib/libc.so.6 (gsignal+0x100) [0x7f0ea10f16f0]
[     2.904] (EE) 3: /lib/libc.so.6 (abort+0x102) [0x7f0ea10db526]
[     2.905] (EE) 4: /lib/libc.so.6 (__assert_fail_base.cold+0xf) [0x7f0ea10db41f]
[     2.905] (EE) 5: /lib/libc.so.6 (__assert_fail+0x42) [0x7f0ea10ea112]
[     2.905] (EE) unw_get_proc_name failed: no unwind info found [-10]
[     2.905] (EE) 6: /usr/lib/xorg/modules/drivers/amdgpu_drv.so (?+0x0) [0x7f0e9f523703]
[     2.905] (EE) unw_get_proc_name failed: no unwind info found [-10]
[     2.905] (EE) 7: /usr/lib/xorg/modules/drivers/amdgpu_drv.so (?+0x0) [0x7f0e9f5239aa]
[     2.905] (EE) unw_get_proc_name failed: no unwind info found [-10]
[     2.905] (EE) 8: /usr/lib/xorg/modules/drivers/amdgpu_drv.so (?+0x0) [0x7f0e9f5323a5]
[     2.905] (EE) unw_get_proc_name failed: no unwind info found [-10]
[     2.905] (EE) 9: /usr/lib/xorg/modules/drivers/amdgpu_drv.so (?+0x0) [0x7f0e9f5341d7]
[     2.905] (EE) 10: /usr/lib/xorg-server/Xorg (MapWindow+0x214) [0x468534]
[     2.905] (EE) 11: /usr/lib/xorg-server/Xorg (InitFonts+0x345) [0x440c05]
[     2.905] (EE) 12: /lib/libc.so.6 (__libc_start_main+0xea) [0x7f0ea10dcdca]
[     2.905] (EE) 13: /usr/lib/xorg-server/Xorg (_start+0x2a) [0x42b44a]
[     2.905] (EE) 
[     2.905] (EE) 
Fatal server error:
[     2.905] (EE) Caught signal 6 (Aborted). Server aborting
[     2.905] (EE) 
[     2.905] (EE) 
Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
[     2.905] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[     2.905] (EE) 
[     2.954] (EE) Server terminated with error (1). Closing log file.

swrast_dri.so should be recompiled against llvm 11, to @demm

Please install mesa from the build repo, recompiled mesa (against new LLVM) wss not moved properly. Mesa 20.3.3 will move as soon as I am at my workstation.

sudo pacman -U https://repo.kaosx.us/build/mesa-20.3.3-1-x86_64.pkg.tar.zst

EDIT:
Mesa has moved, a regular pacman -Syu (after your mirror has synced) will get you the correct version.

Problem Solved - Many thanks.

Just like to say. I have used KaOs as my main distro for over 7 years. And for most of that time I have used the linux-next option.
As a so-called bleeding edge distro, I have had wonderful experiences.

It is great using the latest and greatest packages which show just how good a linux desktop can be.
And for those occasional times when things go a bit awry (like above) the support and speed to solve the issues are FIRST RATE.

Many thanks for all your support, and for providing such a special Desktop Experience.

JJ

  • demm replied to this.

    johnjark And for those occasional times when things go a bit awry (like above)

    This was really a dumb error on my part, too rushed yesterday with moving all needed packages after the ISO release. There were two mesa versions in the [build] repo, one a rebuild for new LLVM ( Mesa 20.3.2-2) and a new version, 20.3.3-1, instead of just moving the rebuild I removed and did not move the new version....