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** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1583888
Title:
Laptop crashes when trying to run discrete AMD GPUs commands with
Xenial
Status in linux package in Ubuntu:
Incomplete
Bug description:
I'm trying to get an A+A (AMD integrated GPU and AMD deiscrete GPU)
device [1] to work with the open source drivers on Xenial.
lspci reports the following regarding the GPUs:
00:01.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Kaveri [Radeon R5 Graphics] [1002:1318] (prog-if 00 [VGA controller])
Subsystem: Dell Kaveri [Radeon R5 Graphics] [1028:067f]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 44
Region 0: Memory at e0000000 (64-bit, prefetchable) [size=256M]
Region 2: Memory at d0800000 (64-bit, prefetchable) [size=8M]
Region 4: I/O ports at 4000 [size=256]
Region 5: Memory at d1400000 (32-bit, non-prefetchable) [size=256K]
Expansion ROM at d0200000 [disabled] [size=128K]
Capabilities: [48] Vendor Specific Information: Len=08 <?>
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1+,D2+,D3hot+,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Express (v2) Root Complex Integrated Endpoint, MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0
ExtTag+ RBE+
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr-
TransPend-
DevCap2: Completion Timeout: Not Supported, TimeoutDis-, LTR-,
OBFF Not Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0800c Data: 41a3
Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1
Len=010 <?>
Capabilities: [270 v1] #19
Capabilities: [2b0 v1] Address Translation Service (ATS)
ATSCap: Invalidate Queue Depth: 00
ATSCtl: Enable+, Smallest Translation Unit: 00
Capabilities: [2c0 v1] #13
Capabilities: [2d0 v1] #1b
Kernel driver in use: radeon
Kernel modules: radeon
01:00.0 Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI]
Topaz XT [Radeon R7 M260/M265] [1002:6900] (rev ff) (prog-if ff)
!!! Unknown header type 7f
Kernel driver in use: amdgpu
Kernel modules: amdgpu
In order to use the discrete GPU, in Xenial you can prefix any command with
`DRI_PRIME=1`. However, with this device, doing this crashes the device.
I tried installing a backported kernel that Alberto provided [2] and
even though the computer does not crash anymore, it still won't show
anything (but the process launched will take 100% of the CPU and
cannot be stopped nor killed, it looks...).
I tried with the following commands:
glxinfo
glxgears
DRI_PRIME=1 glxinfo
DRI_PRIME=1 glxgears
Once, I managed to get some output from the `glxinfo` command, with
and without `DRI_PRIME=1` prefix:
$ glxinfo | grep -i "opengl"
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD KAVERI (DRM 2.43.0, LLVM 3.8.0)
OpenGL core profile version string: 4.1 (Core Profile) Mesa 11.2.0
OpenGL core profile shading language version string: 4.10
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 11.2.0
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 11.2.0
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
OpenGL ES profile extensions:
$ DRI_PRIME=1 glxinfo | grep -i "opengl"
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD ICELAND (DRM 3.1.0, LLVM 3.8.0)
OpenGL core profile version string: 4.1 (Core Profile) Mesa 11.2.0
OpenGL core profile shading language version string: 4.10
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 11.2.0
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 11.2.0
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
OpenGL ES profile extensions:
So it looks like the discrete GPU is used, but so far I couldn't
really use it to run anything 3D-demanding.
Attached is a Zip with a lot of logs, hope this will help!
[1] https://certification.canonical.com/hardware/201405-15050/
[2] http://people.canonical.com/~amilone/amdgpu-4.5/
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