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#1 2016-12-26 22:02:10

decodedplato
Member
Registered: 2016-09-19
Posts: 2

Can't use discrete AMD graphics card R7 M265.

Hello. This is my first post on the Arch Linux forums so please be nice and point out my mistakes, so I can improve.
I can't use my discrete AMD R7 M265 graphics card on my laptop.
I have tried nearly everything, twise, I've found on wiki pages from the Arch Linux wiki and from other sites as well.
I'm willing to try everything again just to be sure.

So let's start from the start.
Before one year or so, I installed Ubuntu 16.04 on my machine. From the start I could not manage to use the discrete graphic card of my laptop while using the AMDGPU driver. So I tried to google the problem and I found that the AMDGPU has a bug with the R7 AMD graphic cards because it was still in the BETA and that I should use the fglrx driver. Therefore I installed Ubuntu 14.04 on my laptop and I switched to the fglrx driver. Using the fglrx driver was clearly an improvement, but sometimes when booting I would get the !!! Unknown header type 7f error when running the lspci -v command at my terminal. Other times when shutting down I would get an error saying something about ring (-1) and then generate a kernel panic and some other times the AMDGPU driver was loader on it's own, even though I chose fglrx from the additional software. It was so confusing. At this point I had some scruples about if it was a hardware problem, so contacted DELL to help me determine if it was a hardware problem. Because I had only Linux installed on my laptop the only thing they could do was to point out to me the diagnostics option when booting the laptop. I ran the diagnostics and it said that there is no hardware errors. At this point I was at a dead end. I did not know enough about how to manage my drivers and how I can edit successfully my xorg.conf file or how to choose one driver over the other. So I installed Arch Linux, hoping that the "do everything yourself" consept will help me to learn how to do it myself. Long story short, even now, having tried everything from the Arch wiki I still can't use my AMD gpu.
Let me help you, so you can help me:

Output of lspci -v while the AMDGPU is blacklisted

$ lspci -v
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
	Subsystem: Dell Device 0640
	Flags: bus master, fast devsel, latency 0
	Capabilities: <access denied>
	Kernel driver in use: hsw_uncore

00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b) (prog-if 00 [VGA controller])
	Subsystem: Dell Device 0640
	Flags: bus master, fast devsel, latency 0, IRQ 45
	Memory at b0400000 (64-bit, non-prefetchable) [size=4M]
	Memory at c0000000 (64-bit, prefetchable) [size=256M]
	I/O ports at 5000 [size=64]
	[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: i915
	Kernel modules: i915

00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
	Subsystem: Dell Device 0640
	Flags: bus master, fast devsel, latency 0, IRQ 46
	Memory at b0c10000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04) (prog-if 30 [XHCI])
	Subsystem: Dell Device 0640
	Flags: bus master, medium devsel, latency 0, IRQ 43
	Memory at b0c00000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd
	Kernel modules: xhci_pci

00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
	Subsystem: Dell Device 0640
	Flags: bus master, fast devsel, latency 0, IRQ 47
	Memory at b0c18000 (64-bit, non-prefetchable) [size=32]
	Capabilities: <access denied>
	Kernel driver in use: mei_me
	Kernel modules: mei_me

00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
	Subsystem: Dell Device 0640
	Flags: bus master, fast devsel, latency 0, IRQ 50
	Memory at b0c14000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 40
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	I/O behind bridge: 00004000-00004fff
	Memory behind bridge: b0b00000-b0bfffff
	Prefetchable memory behind bridge: 00000000b0800000-00000000b08fffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 41
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	Memory behind bridge: b0a00000-b0afffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:1c.4 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 5 (rev e4) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 42
	Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
	I/O behind bridge: 00003000-00003fff
	Memory behind bridge: b0900000-b09fffff
	Prefetchable memory behind bridge: 00000000a0000000-00000000b01fffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04) (prog-if 20 [EHCI])
	Subsystem: Dell Device 0640
	Flags: medium devsel, IRQ 23
	Memory at b0c1c000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci
	Kernel modules: ehci_pci

00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
	Subsystem: Dell Device 0640
	Flags: bus master, medium devsel, latency 0
	Capabilities: <access denied>
	Kernel driver in use: lpc_ich
	Kernel modules: lpc_ich

00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])
	Subsystem: Dell Device 0640
	Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 44
	I/O ports at 5088 [size=8]
	I/O ports at 5094 [size=4]
	I/O ports at 5080 [size=8]
	I/O ports at 5090 [size=4]
	I/O ports at 5060 [size=32]
	Memory at b0c1b000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci
	Kernel modules: ahci

00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
	Subsystem: Dell Device 0640
	Flags: medium devsel, IRQ 18
	Memory at b0c19000 (64-bit, non-prefetchable) [size=256]
	I/O ports at 5040 [size=32]
	Kernel driver in use: i801_smbus
	Kernel modules: i2c_i801

01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 07)
	Subsystem: Dell Device 0640
	Flags: bus master, fast devsel, latency 0, IRQ 49
	I/O ports at 4000 [size=256]
	Memory at b0b00000 (64-bit, non-prefetchable) [size=4K]
	Memory at b0800000 (64-bit, prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: r8169
	Kernel modules: r8169

02:00.0 Network controller: Intel Corporation Wireless 3160 (rev 83)
	Subsystem: Intel Corporation Dual Band Wireless AC 3160
	Flags: bus master, fast devsel, latency 0, IRQ 48
	Memory at b0a00000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi

03:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260/M265 / M340/M360 / M440/M445]
	Subsystem: Dell Radeon R7 M260/M265
	Flags: bus master, fast devsel, latency 0, IRQ 11
	Memory at a0000000 (64-bit, prefetchable) [size=256M]
	Memory at b0000000 (64-bit, prefetchable) [size=2M]
	I/O ports at 3000 [disabled] [size=256]
	Memory at b0900000 (32-bit, non-prefetchable) [size=256K]
	Expansion ROM at b0940000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel modules: amdgpu

My custom xorg.conf is:

$ cat /etc/X11/xorg.conf
Section "ServerLayout"
	Identifier     "X.org Configured"
	Screen 0       "amd_screen"
#	inactive       "intel_gpu"
EndSection

Section "Files"
	ModulePath   "/usr/lib/xorg/modules"
	FontPath     "/usr/share/fonts/misc/"
	FontPath     "/usr/share/fonts/TTF/"
	FontPath     "/usr/share/fonts/OTF/"
	FontPath     "/usr/share/fonts/Type1/"
	FontPath     "/usr/share/fonts/100dpi/"
	FontPath     "/usr/share/fonts/75dpi/"
EndSection

Section "Module"
	Load  "glx"
EndSection

Section "Monitor"
	Identifier   "Monitor0"
	VendorName   "Monitor Vendor"
	ModelName    "Monitor Model"
EndSection

Section "Monitor"
	Identifier   "Monitor1"
	VendorName   "Monitor Vendor"
	ModelName    "Monitor Model"
EndSection

#Section "Device"
#        ### Available Driver options are:-
#        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
#        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz",
#        ### <percent>: "<f>%"
#        ### [arg]: arg optional
#        #Option     "SWcursor"           	# [<bool>]
#        #Option     "kmsdev"             	# <str>
#        #Option     "ShadowFB"           	# [<bool>]
#        #Option     "AccelMethod"        	# <str>
#        #Option     "PageFlip"           	# [<bool>]
#        #Option     "ZaphodHeads"        	# <str>
#	Identifier  "intel_gpu"
#	Driver      "modesetting"
#	BusID       "PCI:00:02.0"
#EndSection

Section "Device"
        ### Available Driver options are:-
        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz",
        ### <percent>: "<f>%"
        ### [arg]: arg optional
        #Option     "SWcursor"           	# [<bool>]
        #Option     "kmsdev"             	# <str>
        #Option     "ShadowFB"           	# [<bool>]
        #Option     "AccelMethod"        	# <str>
        #Option     "PageFlip"           	# [<bool>]
        #Option     "ZaphodHeads"        	# <str>
	Identifier  "amd_gpu"
	Driver      "radeon"
	BusID       "PCI:03:00.0"
EndSection

Section "Screen"
	Identifier "amd_screen"
	Device     "amd_gpu"
	Monitor    "Monitor0"
	SubSection "Display"
		Viewport   0 0
		Depth     1
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     4
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     8
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     15
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     16
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     24
	EndSubSection
EndSection

#Section "Screen"
#	Identifier "intel_screen"
#	Device     "intel_gpu"
#	Monitor    "Monitor1"
#	SubSection "Display"
#		Viewport   0 0
#		Depth     1
#	EndSubSection
#	SubSection "Display"
#		Viewport   0 0
#		Depth     4
#	EndSubSection
#	SubSection "Display"
#		Viewport   0 0
#		Depth     8
#	EndSubSection
#	SubSection "Display"
#		Viewport   0 0
#		Depth     15
#	EndSubSection
#	SubSection "Display"
#		Viewport   0 0
#		Depth     16
#	EndSubSection
#	SubSection "Display"
#		Viewport   0 0
#		Depth     24
#	EndSubSection
#EndSection

NOTE: Please note that this xorg.conf does not work. I run GNOME on wayland.

Here is the error when executing startx:

$ cat /var/log/Xorg.1.log
[   579.579] 
X.Org X Server 1.18.4
Release Date: 2016-07-19
[   579.579] X Protocol Version 11, Revision 0
[   579.579] Build Operating System: Linux 4.5.4-1-ARCH x86_64 
[   579.580] Current Operating System: Linux decoded 4.8.13-1-ARCH #1 SMP PREEMPT Fri Dec 9 07:24:34 CET 2016 x86_64
[   579.580] Kernel command line: BOOT_IMAGE=/vmlinuz-linux root=UUID=daee69f7-21e3-466b-8635-f7a6b8459796 rw
[   579.580] Build Date: 19 July 2016  05:54:24PM
[   579.580]  
[   579.580] Current version of pixman: 0.34.0
[   579.580] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[   579.580] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[   579.580] (==) Log file: "/var/log/Xorg.1.log", Time: Mon Dec 26 23:51:18 2016
[   579.595] (==) Using config file: "/etc/X11/xorg.conf"
[   579.596] (==) Using config directory: "/etc/X11/xorg.conf.d"
[   579.596] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[   579.636] (==) ServerLayout "X.org Configured"
[   579.636] (**) |-->Screen "amd_screen" (0)
[   579.636] (**) |   |-->Monitor "Monitor0"
[   579.636] (**) |   |-->Device "amd_gpu"
[   579.636] (**) |   |-->GPUDevice "amd_gpu"
[   579.636] (==) Automatically adding devices
[   579.636] (==) Automatically enabling devices
[   579.636] (==) Automatically adding GPU devices
[   579.636] (==) Max clients allowed: 256, resource mask: 0x1fffff
[   579.636] (WW) The directory "/usr/share/fonts/Type1/" does not exist.
[   579.636] 	Entry deleted from font path.
[   579.636] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/100dpi/".
[   579.636] 	Entry deleted from font path.
[   579.636] 	(Run 'mkfontdir' on "/usr/share/fonts/100dpi/").
[   579.636] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/75dpi/".
[   579.636] 	Entry deleted from font path.
[   579.636] 	(Run 'mkfontdir' on "/usr/share/fonts/75dpi/").
[   579.636] (WW) The directory "/usr/share/fonts/Type1/" does not exist.
[   579.636] 	Entry deleted from font path.
[   579.636] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/100dpi/".
[   579.636] 	Entry deleted from font path.
[   579.636] 	(Run 'mkfontdir' on "/usr/share/fonts/100dpi/").
[   579.636] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/75dpi/".
[   579.636] 	Entry deleted from font path.
[   579.636] 	(Run 'mkfontdir' on "/usr/share/fonts/75dpi/").
[   579.636] (**) FontPath set to:
	/usr/share/fonts/misc/,
	/usr/share/fonts/TTF/,
	/usr/share/fonts/OTF/,
	/usr/share/fonts/misc/,
	/usr/share/fonts/TTF/,
	/usr/share/fonts/OTF/
[   579.636] (**) ModulePath set to "/usr/lib/xorg/modules"
[   579.636] (II) The server relies on udev to provide the list of input devices.
	If no devices become available, reconfigure udev or disable AutoAddDevices.
[   579.637] (II) Loader magic: 0x821d40
[   579.637] (II) Module ABI versions:
[   579.637] 	X.Org ANSI C Emulation: 0.4
[   579.637] 	X.Org Video Driver: 20.0
[   579.637] 	X.Org XInput driver : 22.1
[   579.637] 	X.Org Server Extension : 9.0
[   579.638] (++) using VT number 3

[   579.638] (--) controlling tty is VT number 3, auto-enabling KeepTty
[   579.641] (II) systemd-logind: took control of session /org/freedesktop/login1/session/c3
[   579.641] (II) xfree86: Adding drm device (/dev/dri/card1)
[   579.641] (II) systemd-logind: got fd for /dev/dri/card1 226:1 fd 8 paused 0
[   579.642] (II) xfree86: Adding drm device (/dev/dri/card0)
[   579.642] (II) systemd-logind: got fd for /dev/dri/card0 226:0 fd 9 paused 0
[   580.091] (--) PCI:*(0:0:2:0) 8086:0a16:1028:0640 rev 11, Mem @ 0xb0400000/4194304, 0xc0000000/268435456, I/O @ 0x00005000/64, BIOS @ 0x????????/131072
[   580.091] (--) PCI: (0:3:0:0) 1002:6900:1028:0640 rev 0, Mem @ 0xa0000000/268435456, 0xb0000000/2097152, 0xb0900000/262144, I/O @ 0x00003000/256, BIOS @ 0x????????/131072
[   580.091] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[   580.095] (II) "glx" will be loaded. This was enabled by default and also specified in the config file.
[   580.095] (II) LoadModule: "glx"
[   580.217] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[   580.232] (II) Module glx: vendor="X.Org Foundation"
[   580.232] 	compiled for 1.18.4, module version = 1.0.0
[   580.232] 	ABI class: X.Org Server Extension, version 9.0
[   580.232] (==) AIGLX enabled
[   580.232] (II) LoadModule: "radeon"
[   580.232] (II) Loading /usr/lib/xorg/modules/drivers/radeon_drv.so
[   580.245] (II) Module radeon: vendor="X.Org Foundation"
[   580.245] 	compiled for 1.18.4, module version = 7.8.0
[   580.245] 	Module class: X.Org Video Driver
[   580.245] 	ABI class: X.Org Video Driver, version 20.0
[   580.245] (II) RADEON: Driver for ATI/AMD Radeon chipsets:
	ATI Radeon Mobility X600 (M24), ATI FireMV 2400,
	ATI Radeon Mobility X300 (M24), ATI FireGL M24 GL,
	ATI Radeon X600 (RV380), ATI FireGL V3200 (RV380),
	ATI Radeon IGP320 (A3), ATI Radeon IGP330/340/350 (A4),
	ATI Radeon 9500, ATI Radeon 9600TX, ATI FireGL Z1, ATI Radeon 9800SE,
	ATI Radeon 9800, ATI FireGL X2, ATI Radeon 9600, ATI Radeon 9600SE,
	ATI Radeon 9600XT, ATI FireGL T2, ATI Radeon 9650, ATI FireGL RV360,
	ATI Radeon 7000 IGP (A4+), ATI Radeon 8500 AIW,
	ATI Radeon IGP320M (U1), ATI Radeon IGP330M/340M/350M (U2),
	ATI Radeon Mobility 7000 IGP, ATI Radeon 9000/PRO, ATI Radeon 9000,
	ATI Radeon X800 (R420), ATI Radeon X800PRO (R420),
	ATI Radeon X800SE (R420), ATI FireGL X3 (R420),
	ATI Radeon Mobility 9800 (M18), ATI Radeon X800 SE (R420),
	ATI Radeon X800XT (R420), ATI Radeon X800 VE (R420),
	ATI Radeon X850 (R480), ATI Radeon X850 XT (R480),
	ATI Radeon X850 SE (R480), ATI Radeon X850 PRO (R480),
	ATI Radeon X850 XT PE (R480), ATI Radeon Mobility M7,
	ATI Mobility FireGL 7800 M7, ATI Radeon Mobility M6,
	ATI FireGL Mobility 9000 (M9), ATI Radeon Mobility 9000 (M9),
	ATI Radeon 9700 Pro, ATI Radeon 9700/9500Pro, ATI FireGL X1,
	ATI Radeon 9800PRO, ATI Radeon 9800XT,
	ATI Radeon Mobility 9600/9700 (M10/M11),
	ATI Radeon Mobility 9600 (M10), ATI Radeon Mobility 9600 (M11),
	ATI FireGL Mobility T2 (M10), ATI FireGL Mobility T2e (M11),
	ATI Radeon, ATI FireGL 8700/8800, ATI Radeon 8500, ATI Radeon 9100,
	ATI Radeon 7500, ATI Radeon VE/7000, ATI ES1000,
	ATI Radeon Mobility X300 (M22), ATI Radeon Mobility X600 SE (M24C),
	ATI FireGL M22 GL, ATI Radeon X800 (R423), ATI Radeon X800PRO (R423),
	ATI Radeon X800LE (R423), ATI Radeon X800SE (R423),
	ATI Radeon X800 XTP (R430), ATI Radeon X800 XL (R430),
	ATI Radeon X800 SE (R430), ATI Radeon X800 (R430),
	ATI FireGL V7100 (R423), ATI FireGL V5100 (R423),
	ATI FireGL unknown (R423), ATI Mobility FireGL V5000 (M26),
	ATI Mobility Radeon X700 XL (M26), ATI Mobility Radeon X700 (M26),
	ATI Radeon X550XTX, ATI Radeon 9100 IGP (A5),
	ATI Radeon Mobility 9100 IGP (U3), ATI Radeon XPRESS 200,
	ATI Radeon XPRESS 200M, ATI Radeon 9250, ATI Radeon 9200,
	ATI Radeon 9200SE, ATI FireMV 2200, ATI Radeon X300 (RV370),
	ATI Radeon X600 (RV370), ATI Radeon X550 (RV370),
	ATI FireGL V3100 (RV370), ATI FireMV 2200 PCIE (RV370),
	ATI Radeon Mobility 9200 (M9+), ATI Mobility Radeon X800 XT (M28),
	ATI Mobility FireGL V5100 (M28), ATI Mobility Radeon X800 (M28),
	ATI Radeon X850, ATI unknown Radeon / FireGL (R480),
	ATI Radeon X800XT (R423), ATI FireGL V5000 (RV410),
	ATI Radeon X700 XT (RV410), ATI Radeon X700 PRO (RV410),
	ATI Radeon X700 SE (RV410), ATI Radeon X700 (RV410),
	ATI Radeon X1800, ATI Mobility Radeon X1800 XT,
	ATI Mobility Radeon X1800, ATI Mobility FireGL V7200,
	ATI FireGL V7200, ATI FireGL V5300, ATI Mobility FireGL V7100,
	ATI FireGL V7300, ATI FireGL V7350, ATI Radeon X1600, ATI RV505,
	ATI Radeon X1300/X1550, ATI Radeon X1550, ATI M54-GL,
	ATI Mobility Radeon X1400, ATI Radeon X1550 64-bit,
	ATI Mobility Radeon X1300, ATI Radeon X1300, ATI FireGL V3300,
	ATI FireGL V3350, ATI Mobility Radeon X1450,
	ATI Mobility Radeon X2300, ATI Mobility Radeon X1350,
	ATI FireMV 2250, ATI Radeon X1650, ATI Mobility FireGL V5200,
	ATI Mobility Radeon X1600, ATI Radeon X1300 XT/X1600 Pro,
	ATI FireGL V3400, ATI Mobility FireGL V5250,
	ATI Mobility Radeon X1700, ATI Mobility Radeon X1700 XT,
	ATI FireGL V5200, ATI Radeon X2300HD, ATI Mobility Radeon HD 2300,
	ATI Radeon X1950, ATI Radeon X1900, ATI AMD Stream Processor,
	ATI RV560, ATI Mobility Radeon X1900, ATI Radeon X1950 GT, ATI RV570,
	ATI FireGL V7400, ATI Radeon 9100 PRO IGP,
	ATI Radeon Mobility 9200 IGP, ATI Radeon X1200, ATI RS740,
	ATI RS740M, ATI Radeon HD 2900 XT, ATI Radeon HD 2900 Pro,
	ATI Radeon HD 2900 GT, ATI FireGL V8650, ATI FireGL V8600,
	ATI FireGL V7600, ATI Radeon 4800 Series, ATI Radeon HD 4870 x2,
	ATI Radeon HD 4850 x2, ATI FirePro V8750 (FireGL),
	ATI FirePro V7760 (FireGL), ATI Mobility RADEON HD 4850,
	ATI Mobility RADEON HD 4850 X2, ATI FirePro RV770,
	AMD FireStream 9270, AMD FireStream 9250, ATI FirePro V8700 (FireGL),
	ATI Mobility RADEON HD 4870, ATI Mobility RADEON M98,
	ATI FirePro M7750, ATI M98, ATI Mobility Radeon HD 4650,
	ATI Radeon RV730 (AGP), ATI Mobility Radeon HD 4670,
	ATI FirePro M5750, ATI RV730XT [Radeon HD 4670], ATI RADEON E4600,
	ATI Radeon HD 4600 Series, ATI RV730 PRO [Radeon HD 4650],
	ATI FirePro V7750 (FireGL), ATI FirePro V5700 (FireGL),
	ATI FirePro V3750 (FireGL), ATI Mobility Radeon HD 4830,
	ATI Mobility Radeon HD 4850, ATI FirePro M7740, ATI RV740,
	ATI Radeon HD 4770, ATI Radeon HD 4700 Series, ATI RV610,
	ATI Radeon HD 2400 XT, ATI Radeon HD 2400 Pro,
	ATI Radeon HD 2400 PRO AGP, ATI FireGL V4000, ATI Radeon HD 2350,
	ATI Mobility Radeon HD 2400 XT, ATI Mobility Radeon HD 2400,
	ATI RADEON E2400, ATI FireMV 2260, ATI RV670, ATI Radeon HD3870,
	ATI Mobility Radeon HD 3850, ATI Radeon HD3850,
	ATI Mobility Radeon HD 3850 X2, ATI Mobility Radeon HD 3870,
	ATI Mobility Radeon HD 3870 X2, ATI Radeon HD3870 X2,
	ATI FireGL V7700, ATI Radeon HD3690, AMD Firestream 9170,
	ATI Radeon HD 4550, ATI Radeon RV710, ATI Radeon HD 4350,
	ATI Mobility Radeon 4300 Series, ATI Mobility Radeon 4500 Series,
	ATI FirePro RG220, ATI Mobility Radeon 4330, ATI RV630,
	ATI Mobility Radeon HD 2600, ATI Mobility Radeon HD 2600 XT,
	ATI Radeon HD 2600 XT AGP, ATI Radeon HD 2600 Pro AGP,
	ATI Radeon HD 2600 XT, ATI Radeon HD 2600 Pro, ATI Gemini RV630,
	ATI Gemini Mobility Radeon HD 2600 XT, ATI FireGL V5600,
	ATI FireGL V3600, ATI Radeon HD 2600 LE,
	ATI Mobility FireGL Graphics Processor, ATI Radeon HD 3470,
	ATI Mobility Radeon HD 3430, ATI Mobility Radeon HD 3400 Series,
	ATI Radeon HD 3450, ATI Radeon HD 3430, ATI FirePro V3700,
	ATI FireMV 2450, ATI Radeon HD 3600 Series, ATI Radeon HD 3650 AGP,
	ATI Radeon HD 3600 PRO, ATI Radeon HD 3600 XT,
	ATI Mobility Radeon HD 3650, ATI Mobility Radeon HD 3670,
	ATI Mobility FireGL V5700, ATI Mobility FireGL V5725,
	ATI Radeon HD 3200 Graphics, ATI Radeon 3100 Graphics,
	ATI Radeon HD 3300 Graphics, ATI Radeon 3000 Graphics, SUMO, SUMO2,
	ATI Radeon HD 4200, ATI Radeon 4100, ATI Mobility Radeon HD 4200,
	ATI Mobility Radeon 4100, ATI Radeon HD 4290, ATI Radeon HD 4250,
	AMD Radeon HD 6310 Graphics, AMD Radeon HD 6250 Graphics,
	AMD Radeon HD 6300 Series Graphics,
	AMD Radeon HD 6200 Series Graphics, PALM, CYPRESS,
	ATI FirePro (FireGL) Graphics Adapter, AMD Firestream 9370,
	AMD Firestream 9350, ATI Radeon HD 5800 Series,
	ATI Radeon HD 5900 Series, ATI Mobility Radeon HD 5800 Series,
	ATI Radeon HD 5700 Series, ATI Radeon HD 6700 Series,
	ATI Mobility Radeon HD 5000 Series, ATI Mobility Radeon HD 5570,
	ATI Radeon HD 5670, ATI Radeon HD 5570, ATI Radeon HD 5500 Series,
	REDWOOD, ATI Mobility Radeon Graphics, CEDAR, ATI FirePro 2270,
	ATI Radeon HD 5450, CAYMAN, AMD Radeon HD 6900 Series,
	AMD Radeon HD 6900M Series, Mobility Radeon HD 6000 Series, BARTS,
	AMD Radeon HD 6800 Series, AMD Radeon HD 6700 Series, TURKS, CAICOS,
	ARUBA, TAHITI, PITCAIRN, VERDE, OLAND, HAINAN, BONAIRE, KABINI,
	MULLINS, KAVERI, HAWAII
[   580.247] (EE) No devices detected.
[   580.247] (EE) 
Fatal server error:
[   580.247] (EE) no screens found(EE) 
[   580.247] (EE) 
Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
[   580.247] (EE) Please also check the log file at "/var/log/Xorg.1.log" for additional information.
[   580.247] (EE)

My blacklisted modules are:

$ cat /etc/modprobe.d/blacklisted_modules.conf
blacklist amdgpu

The lspci -v output while the AMDGPU module isn't blacklisted is:

$ lspci -v
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
	Subsystem: Dell Device 0640
	Flags: bus master, fast devsel, latency 0
	Capabilities: <access denied>
	Kernel driver in use: hsw_uncore

00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b) (prog-if 00 [VGA controller])
	Subsystem: Dell Device 0640
	Flags: bus master, fast devsel, latency 0, IRQ 46
	Memory at b0400000 (64-bit, non-prefetchable) [size=4M]
	Memory at c0000000 (64-bit, prefetchable) [size=256M]
	I/O ports at 5000 [size=64]
	[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: i915
	Kernel modules: i915

00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
	Subsystem: Dell Device 0640
	Flags: bus master, fast devsel, latency 0, IRQ 51
	Memory at b0c10000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04) (prog-if 30 [XHCI])
	Subsystem: Dell Device 0640
	Flags: bus master, medium devsel, latency 0, IRQ 44
	Memory at b0c00000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd
	Kernel modules: xhci_pci

00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
	Subsystem: Dell Device 0640
	Flags: bus master, fast devsel, latency 0, IRQ 47
	Memory at b0c18000 (64-bit, non-prefetchable) [size=32]
	Capabilities: <access denied>
	Kernel driver in use: mei_me
	Kernel modules: mei_me

00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
	Subsystem: Dell Device 0640
	Flags: bus master, fast devsel, latency 0, IRQ 48
	Memory at b0c14000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 40
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	I/O behind bridge: 00004000-00004fff
	Memory behind bridge: b0b00000-b0bfffff
	Prefetchable memory behind bridge: 00000000b0800000-00000000b08fffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 41
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	Memory behind bridge: b0a00000-b0afffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:1c.4 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 5 (rev e4) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 42
	Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
	I/O behind bridge: 00003000-00003fff
	Memory behind bridge: b0900000-b09fffff
	Prefetchable memory behind bridge: 00000000a0000000-00000000b01fffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04) (prog-if 20 [EHCI])
	Subsystem: Dell Device 0640
	Flags: bus master, medium devsel, latency 0, IRQ 23
	Memory at b0c1c000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci
	Kernel modules: ehci_pci

00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
	Subsystem: Dell Device 0640
	Flags: bus master, medium devsel, latency 0
	Capabilities: <access denied>
	Kernel driver in use: lpc_ich
	Kernel modules: lpc_ich

00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])
	Subsystem: Dell Device 0640
	Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 43
	I/O ports at 5088 [size=8]
	I/O ports at 5094 [size=4]
	I/O ports at 5080 [size=8]
	I/O ports at 5090 [size=4]
	I/O ports at 5060 [size=32]
	Memory at b0c1b000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci
	Kernel modules: ahci

00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
	Subsystem: Dell Device 0640
	Flags: medium devsel, IRQ 18
	Memory at b0c19000 (64-bit, non-prefetchable) [size=256]
	I/O ports at 5040 [size=32]
	Kernel driver in use: i801_smbus
	Kernel modules: i2c_i801

01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 07)
	Subsystem: Dell Device 0640
	Flags: bus master, fast devsel, latency 0, IRQ 50
	I/O ports at 4000 [size=256]
	Memory at b0b00000 (64-bit, non-prefetchable) [size=4K]
	Memory at b0800000 (64-bit, prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: r8169
	Kernel modules: r8169

02:00.0 Network controller: Intel Corporation Wireless 3160 (rev 83)
	Subsystem: Intel Corporation Dual Band Wireless AC 3160
	Flags: bus master, fast devsel, latency 0, IRQ 49
	Memory at b0a00000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi

03:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260/M265 / M340/M360 / M440/M445] (rev ff) (prog-if ff)
	!!! Unknown header type 7f
	Kernel driver in use: amdgpu
	Kernel modules: amdgpu

Whatever extra information you need to help me please don't hesitate to request it from me. I've tried to deal with this problem countless times. Asking here for help is my last resort. I'm not a help vampire and I don't want to be one. Thanks for your time!

Last edited by decodedplato (2016-12-27 01:24:17)

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#2 2016-12-26 23:23:42

R00KIE
Forum Fellow
From: Between a computer and a chair
Registered: 2008-09-14
Posts: 4,734

Re: Can't use discrete AMD graphics card R7 M265.

Remove/rename all custom xorg configuration files, remove that amdgpu blacklist, reboot and post output of 'lspci -nnvk'.

R00KIE
Tm90aGluZyB0byBzZWUgaGVyZSwgbW92ZSBhbG9uZy4K

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#3 2016-12-27 01:02:24

decodedplato
Member
Registered: 2016-09-19
Posts: 2

Re: Can't use discrete AMD graphics card R7 M265.

R00KIE wrote:

Remove/rename all custom xorg configuration files, remove that amdgpu blacklist, reboot and post output of 'lspci -nnvk'.

  • I renamed all the custom xorg configuration files from /etc/X11/.

  • I renamed the .xinitrc custom file from my home directory (~/.xinitrc)

  • I also renamed all custom files from /etc/modules-load.d/.

  • I commented out the blacklist amdgpu line from the /etc/modprobe.d/blacklisted_modules.conf.

The output of lspci -nnvk is:

$ lspci -nnvk
00:00.0 Host bridge [0600]: Intel Corporation Haswell-ULT DRAM Controller [8086:0a04] (rev 0b)
	Subsystem: Dell Device [1028:0640]
	Flags: bus master, fast devsel, latency 0
	Capabilities: <access denied>
	Kernel driver in use: hsw_uncore

00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller])
	Subsystem: Dell Device [1028:0640]
	Flags: bus master, fast devsel, latency 0, IRQ 48
	Memory at b0400000 (64-bit, non-prefetchable) [size=4M]
	Memory at c0000000 (64-bit, prefetchable) [size=256M]
	I/O ports at 5000 [size=64]
	[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: i915
	Kernel modules: i915

00:03.0 Audio device [0403]: Intel Corporation Haswell-ULT HD Audio Controller [8086:0a0c] (rev 0b)
	Subsystem: Dell Device [1028:0640]
	Flags: bus master, fast devsel, latency 0, IRQ 50
	Memory at b0c10000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

00:14.0 USB controller [0c03]: Intel Corporation 8 Series USB xHCI HC [8086:9c31] (rev 04) (prog-if 30 [XHCI])
	Subsystem: Dell Device [1028:0640]
	Flags: bus master, medium devsel, latency 0, IRQ 43
	Memory at b0c00000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd
	Kernel modules: xhci_pci

00:16.0 Communication controller [0780]: Intel Corporation 8 Series HECI #0 [8086:9c3a] (rev 04)
	Subsystem: Dell Device [1028:0640]
	Flags: bus master, fast devsel, latency 0, IRQ 46
	Memory at b0c18000 (64-bit, non-prefetchable) [size=32]
	Capabilities: <access denied>
	Kernel driver in use: mei_me
	Kernel modules: mei_me

00:1b.0 Audio device [0403]: Intel Corporation 8 Series HD Audio Controller [8086:9c20] (rev 04)
	Subsystem: Dell Device [1028:0640]
	Flags: bus master, fast devsel, latency 0, IRQ 45
	Memory at b0c14000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

00:1c.0 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 3 [8086:9c14] (rev e4) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 40
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	I/O behind bridge: 00004000-00004fff
	Memory behind bridge: b0b00000-b0bfffff
	Prefetchable memory behind bridge: 00000000b0800000-00000000b08fffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:1c.3 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 4 [8086:9c16] (rev e4) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 41
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	Memory behind bridge: b0a00000-b0afffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:1c.4 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 5 [8086:9c18] (rev e4) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 42
	Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
	I/O behind bridge: 00003000-00003fff
	Memory behind bridge: b0900000-b09fffff
	Prefetchable memory behind bridge: 00000000a0000000-00000000b01fffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:1d.0 USB controller [0c03]: Intel Corporation 8 Series USB EHCI #1 [8086:9c26] (rev 04) (prog-if 20 [EHCI])
	Subsystem: Dell Device [1028:0640]
	Flags: bus master, medium devsel, latency 0, IRQ 23
	Memory at b0c1c000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci
	Kernel modules: ehci_pci

00:1f.0 ISA bridge [0601]: Intel Corporation 8 Series LPC Controller [8086:9c43] (rev 04)
	Subsystem: Dell Device [1028:0640]
	Flags: bus master, medium devsel, latency 0
	Capabilities: <access denied>
	Kernel driver in use: lpc_ich
	Kernel modules: lpc_ich

00:1f.2 SATA controller [0106]: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] [8086:9c03] (rev 04) (prog-if 01 [AHCI 1.0])
	Subsystem: Dell Device [1028:0640]
	Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 44
	I/O ports at 5088 [size=8]
	I/O ports at 5094 [size=4]
	I/O ports at 5080 [size=8]
	I/O ports at 5090 [size=4]
	I/O ports at 5060 [size=32]
	Memory at b0c1b000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci
	Kernel modules: ahci

00:1f.3 SMBus [0c05]: Intel Corporation 8 Series SMBus Controller [8086:9c22] (rev 04)
	Subsystem: Dell Device [1028:0640]
	Flags: medium devsel, IRQ 18
	Memory at b0c19000 (64-bit, non-prefetchable) [size=256]
	I/O ports at 5040 [size=32]
	Kernel driver in use: i801_smbus
	Kernel modules: i2c_i801

01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 07)
	Subsystem: Dell Device [1028:0640]
	Flags: bus master, fast devsel, latency 0, IRQ 47
	I/O ports at 4000 [size=256]
	Memory at b0b00000 (64-bit, non-prefetchable) [size=4K]
	Memory at b0800000 (64-bit, prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: r8169
	Kernel modules: r8169

02:00.0 Network controller [0280]: Intel Corporation Wireless 3160 [8086:08b3] (rev 83)
	Subsystem: Intel Corporation Dual Band Wireless AC 3160 [8086:8470]
	Flags: bus master, fast devsel, latency 0, IRQ 49
	Memory at b0a00000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi

03:00.0 Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260/M265 / M340/M360 / M440/M445] [1002:6900]
	Subsystem: Dell Radeon R7 M260/M265 [1028:0640]
	Flags: bus master, fast devsel, latency 0, IRQ 51
	Memory at a0000000 (64-bit, prefetchable) [size=256M]
	Memory at b0000000 (64-bit, prefetchable) [size=2M]
	I/O ports at 3000 [size=256]
	Memory at b0900000 (32-bit, non-prefetchable) [size=256K]
	Expansion ROM at b0940000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: amdgpu
	Kernel modules: amdgpu

NOTE: This output would happen sometimes before I renamed the custom xorg files as well. In fact it happened just before I renamed the files I listed above.
NOTE: There is not any improvement in performance.

Last edited by decodedplato (2016-12-27 01:15:18)

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#4 2016-12-27 10:49:28

R00KIE
Forum Fellow
From: Between a computer and a chair
Registered: 2008-09-14
Posts: 4,734

Re: Can't use discrete AMD graphics card R7 M265.

I was suspecting that you might have an older card that might also be supported by the radeon module, but the vendor:product id combo says otherwise.

Let me try to answer things point by point:

X doesn't start: your "main" card will be the Intel iGPU, that is most probably where all the outputs are connected. If you don't have any custom xorg conf files that will be what xorg will use by default, and that is most probably the only way it will work.

Performance issues: if you want to use the AMD dGPU for gaming you'll have to look into using dri prime[1] if you are using the open source stack, if you are using the proprietary driver I can't help there. As far as I know there is not automatic switching on linux, you have to manually specify which card to use.

Discrete gpu doesn't work: if open driver driver support is still preliminary then there isn't much you can do but wait until things mature, or find a way to use the proprietary driver until things work.

[1] https://wiki.archlinux.org/index.php/PRIME

R00KIE
Tm90aGluZyB0byBzZWUgaGVyZSwgbW92ZSBhbG9uZy4K

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#5 2016-12-27 11:28:16

Lone_Wolf
Forum Moderator
From: Netherlands, Europe
Registered: 2005-10-04
Posts: 11,922

Re: Can't use discrete AMD graphics card R7 M265.

The PRIME method will only work for X sessions, not for wayland sessions.

Setting up multi-gpu/multi-monitor/hybrid graphics  on wayland depends on the compositor used.
AL wiki has an example for the weston compositor, but afaik gnome has incorporated wayland support in their own custom mutter compositor.
I am not aware of any information that describes how to configure hybrid graphics /multi-gpu /multi-screen setups with gnome-wayland & mutter.

Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.


(A works at time B)  && (time C > time B ) ≠  (A works at time C)

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#6 2016-12-27 21:16:25

Taijian
Member
Registered: 2016-04-10
Posts: 74

Re: Can't use discrete AMD graphics card R7 M265.

Intel/AMD PRIME does work on GNOME/Wayland - at least with a single-head setup. I can confirm that much. No personal experience with multi-head setups here, nor the hardware to try.

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