[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2019-07-24 Thread Brad Figg 
** Tags added: cscc

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Title:
  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2019-03-02 Thread Naheem 
Just as an update, in the Freedesktop issue, I found using a LOWER
specced/older cable to fix the problem.

I do not know how to debug it further but I suspect the bug is in the
support of later version of the HDMI standard.

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  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2019-01-22 Thread Naheem 
I have previously created an upstream bug report for this:

https://bugs.freedesktop.org/show_bug.cgi?id=107668

** Bug watch added: freedesktop.org Bugzilla #107668
   https://bugs.freedesktop.org/show_bug.cgi?id=107668

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Title:
  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2019-01-19 Thread Joseph Salisbury via ubuntu-bugs 
** Changed in: linux (Ubuntu Bionic)
 Assignee: Joseph Salisbury (jsalisbury) => (unassigned)

** Changed in: linux (Ubuntu)
 Assignee: Joseph Salisbury (jsalisbury) => (unassigned)

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Title:
  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-12-12 Thread Kai-Heng Feng 
Seems to be another AMDGPU DC issue...

Please try mainline kernel v4.20-rc6.
If it doesn't solve the issue, please file an upstream bug at
https://bugs.freedesktop.org/
Product: DRI
Component: DRM/amdgpu

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  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-12-11 Thread lprent 
I'm getting exactly this issue. An ATI RX 480 on Kubuntu 18.04 with a
ASUS MG28U on HDMI-1. It is on a 5m cable so using the displayport
wasn't an option. The long HDMI cable is to allow the large system box
to be away from my desk. I mostly use the system as a web and data
server and it is stuffed with hard drives.

Works perfectly on 4.13 kernels. Fails on the 4.15 kernels before the
sddm login screen.

4.15.0-43-generic <-- screen repeats HDMI no signal
4.15.0-42-generic <-- screen repeats HDMI no signal
4.15.0-35-generic <-- screen repeats HDMI no signal
4.13.0-36-generic <-- ok

On 4.13 kernels it runs the screen at 3840x2160 @ 30Hz. On 4.15 kernels
it doesn't.

At a guess looking at the syslog, the 4.13 fell back to 30Hz at the hi-
res while the 4.15 does not. Over the long cable the screen isn't
detecting the screen at 60Hz.

Hope that helps. I may have to look at getting a longer active cable...

** Attachment added: "syslog_fragment_4.15.0.43.txt"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1761751/+attachment/5221404/+files/syslog_fragment_4.15.0.43.txt

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Title:
  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-09-16 Thread edward 
HI guys,

Im trying to use my second Monitor with this videocard, i do not know if
i have the same issue but my HDMI monitor just would not work. it worked
before the update and only with kernels until 4.13... i don't know if i
have to put some info here or somewhere else.

thanks.

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  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-05-24 Thread semreh 
Problem persists in kernel 4.17-rc6 from http://kernel.ubuntu.com
/~kernel-ppa/mainline/v4.17-rc6/

#uname -r
4.17.0-041700rc6-generic

#cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-4.17.0-041700rc6-generic  amdgpu.cik_support=1 
radeon.cik_support=0 amdgpu.dc=1

#ls /sys/class/drm
card0  card0-eDP-1  card0-HDMI-A-1  renderD128  ttm  version  <<--***NOTE no 
VGA***

#dmesg | grep drm
[2.326305] [drm] radeon kernel modesetting enabled.
[2.327644] fb: switching to radeondrmfb from EFI VGA
[2.372539] [drm] amdgpu kernel modesetting enabled.
[2.380846] [drm] initializing kernel modesetting (KAVERI 0x1002:0x130A 
0x17AA:0x3988 0x00).
[2.380878] [drm] register mmio base: 0xF0B0
[2.380880] [drm] register mmio size: 262144
[2.380889] [drm] add ip block number 0 
[2.380892] [drm] add ip block number 1 
[2.380894] [drm] add ip block number 2 
[2.380897] [drm] add ip block number 3 
[2.380900] [drm] add ip block number 4 
[2.380903] [drm] add ip block number 5 
[2.380906] [drm] add ip block number 6 
[2.380909] [drm] add ip block number 7 
[2.380911] [drm] add ip block number 8 
[2.404721] [drm] BIOS signature incorrect 0 0
[2.404832] [drm] vm size is 64 GB, 2 levels, block size is 10-bit, fragment 
size is 9-bit
[2.404855] [drm] Detected VRAM RAM=1024M, BAR=1024M
[2.404858] [drm] RAM width 64bits UNKNOWN
[2.405130] [drm] amdgpu: 1024M of VRAM memory ready
[2.405133] [drm] amdgpu: 3072M of GTT memory ready.
[2.405145] [drm] GART: num cpu pages 262144, num gpu pages 262144
[2.405180] [drm] PCIE GART of 1024M enabled (table at 0x00F40004).
[2.405266] [drm] Internal thermal controller without fan control
[2.405269] [drm] amdgpu: dpm initialized
[2.406296] [drm] Found UVD firmware Version: 1.55 Family ID: 9
[2.406649] [drm] Found VCE firmware Version: 50.10 Binary ID: 2
[2.407995] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector 
ObjectID from Adapter Service for connector index:3! type 0 expected 3
[2.408115] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector 
ObjectID from Adapter Service for connector index:4! type 0 expected 3
[2.408204] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector 
ObjectID from Adapter Service for connector index:5! type 0 expected 3
[2.408324] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector 
ObjectID from Adapter Service for connector index:6! type 0 expected 3
[2.420247] [drm] Display Core initialized with v3.1.38!
[2.426796] [drm] SADs count is: -2, don't need to read it
[2.427373] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[2.427379] [drm] Driver supports precise vblank timestamp query.
[2.446239] [drm] UVD initialized successfully.
[2.561743] [drm] VCE initialized successfully.
[2.569100] [drm] fb mappable at 0xA042A000
[2.569106] [drm] vram apper at 0xA000
[2.569109] [drm] size 8294400
[2.569111] [drm] fb depth is 24
[2.569113] [drm]pitch is 7680
[2.569233] fbcon: amdgpudrmfb (fb0) is primary device
[2.657000] amdgpu :00:01.0: fb0: amdgpudrmfb frame buffer device
[2.678478] [drm] Initialized amdgpu 3.25.0 20150101 for :00:01.0 on 
minor 0

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  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-05-23 Thread semreh 
Problem persists in kernel 4.16.11

#uname -r
4.16.11-041611-generic

#ls /sys/class/drm
card0  card0-eDP-1  card0-HDMI-A-1  renderD128  ttm  version

#dmesg | grep drm
[1.783188] [drm] radeon kernel modesetting enabled.
[1.784832] fb: switching to radeondrmfb from EFI VGA
[1.831813] [drm] amdgpu kernel modesetting enabled.
[1.840215] [drm] initializing kernel modesetting (KAVERI 0x1002:0x130A 
0x17AA:0x3988 0x00).
[1.840237] [drm] register mmio base: 0xF0B0
[1.840239] [drm] register mmio size: 262144
[1.865264] [drm] BIOS signature incorrect 0 0
[1.865367] [drm] vm size is 64 GB, 2 levels, block size is 10-bit, fragment 
size is 9-bit
[1.865387] [drm] Detected VRAM RAM=1024M, BAR=1024M
[1.865390] [drm] RAM width 64bits UNKNOWN
[1.865779] [drm] amdgpu: 1024M of VRAM memory ready
[1.865783] [drm] amdgpu: 3072M of GTT memory ready.
[1.865807] [drm] GART: num cpu pages 262144, num gpu pages 262144
[1.865894] [drm] PCIE GART of 1024M enabled (table at 0x00F40004).
[1.866040] [drm] Internal thermal controller without fan control
[1.866046] [drm] amdgpu: dpm initialized
[1.867349] [drm] Found UVD firmware Version: 1.55 Family ID: 9
[1.867789] [drm] Found VCE firmware Version: 50.10 Binary ID: 2
[1.869984] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector 
ObjectID from Adapter Service for connector index:3! type 0 expected 3
[1.870074] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector 
ObjectID from Adapter Service for connector index:4! type 0 expected 3
[1.870200] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector 
ObjectID from Adapter Service for connector index:5! type 0 expected 3
[1.870309] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector 
ObjectID from Adapter Service for connector index:6! type 0 expected 3
[1.884255] [drm] Display Core initialized with v3.1.27!
[1.891240] [drm] SADs count is: -2, don't need to read it
[1.891668] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[1.891674] [drm] Driver supports precise vblank timestamp query.
[1.910078] [drm] UVD initialized successfully.
[2.02] [drm] VCE initialized successfully.
[2.056074] [drm] fb mappable at 0xA042A000
[2.056083] [drm] vram apper at 0xA000
[2.056087] [drm] size 8294400
[2.056090] [drm] fb depth is 24
[2.056093] [drm]pitch is 7680
[2.056218] fbcon: amdgpudrmfb (fb0) is primary device
[2.113975] amdgpu :00:01.0: fb0: amdgpudrmfb frame buffer device
[2.130285] [drm] Initialized amdgpu 3.23.0 20150101 for :00:01.0 on 
minor 0

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  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-05-22 Thread semreh 
Problem still exists in 4.16.10 kernel from 
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.16.10/
(#uname -r output is 4.16.10-041610-generic )

dmesg output gives same error output as before when amdgpu.dc=1

 [1.866312] [drm] amdgpu: 1024M of VRAM memory ready
 [1.866316] [drm] amdgpu: 3072M of GTT memory ready.
 [1.866332] [drm] GART: num cpu pages 262144, num gpu pages 262144
 [1.866382] [drm] PCIE GART of 1024M enabled (table at 0x00F40004).
 [1.866500] [drm] Internal thermal controller without fan control
 [1.866504] [drm] amdgpu: dpm initialized
 [1.867685] [drm] Found UVD firmware Version: 1.55 Family ID: 9
 [1.868113] [drm] Found VCE firmware Version: 50.10 Binary ID: 2
 [1.870125] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector 
ObjectID from Adapter Service for connector index:3! type 0 expected 3
 [1.870214] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector 
ObjectID from Adapter Service for connector index:4! type 0 expected 3
 [1.870337] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector 
ObjectID from Adapter Service for connector index:5! type 0 expected 3
 [1.870445] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector 
ObjectID from Adapter Service for connector index:6! type 0 expected 3
 [1.880211] [drm] Display Core initialized with v3.1.27!
 [1.887329] [drm] SADs count is: -2, don't need to read it
 [1.887755] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
 [1.887761] [drm] Driver supports precise vblank timestamp query.
 [1.906232] [drm] UVD initialized successfully.

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Title:
  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-05-16 Thread semreh 
Problem still exists in 4.16.9 kernel from 
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.16.9/
(#uname -r output is 4.16.9-041609-generic )

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  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-05-15 Thread semreh 
Some information from me, using 4.16.8 kernel
System is Lenovo Z50-75 laptop with AMD-A10 cpu (Kaveri) and both HDMI and VGA 
ports. I use the VGA port to which is connected an Acer X223HQ display, capable 
of displaying up to 1920x1080. The laptop screen is also 1920x1080

If system is booted with the following kernel options

amdgpu.cik_support=1 radeon.cik_support=0 amdgpu.dc=1

I get a black/blank VGA screen.

If system is booted with

amdgpu.cik_support=1 radeon.cik_support=0 amdgpu.dc=0

I get a working VGA display in addition to the laptop screen.

With amdgpu.dc=1 the contents of /sys/class/drm are:
card0
card0-eDP-1
card0-HDMI-A-1
renderD128
ttm
version

With amdgpu.dc=0 the contents of /sys/class/drm are:
card0
card0-eDP-1
card0-HDMI-A-1
card0-VGA-1
renderD128
ttm
version

With amdgpu.dc=0, dmesg lines containing 'drm' are

[1.749135] [drm] radeon kernel modesetting enabled.
[1.750430] fb: switching to radeondrmfb from EFI VGA
[1.795937] [drm] amdgpu kernel modesetting enabled.
[1.804524] [drm] initializing kernel modesetting (KAVERI 0x1002:0x130A 
0x17AA:0x3988 0x00).
[1.804544] [drm] register mmio base: 0xF0B0
[1.804547] [drm] register mmio size: 262144
[1.828764] [drm] BIOS signature incorrect 0 0
[1.829561] [drm] vm size is 64 GB, 2 levels, block size is 10-bit, fragment 
size is 9-bit
[1.829586] [drm] Detected VRAM RAM=1024M, BAR=1024M
[1.829589] [drm] RAM width 64bits UNKNOWN
[1.829727] [drm] amdgpu: 1024M of VRAM memory ready
[1.829731] [drm] amdgpu: 3072M of GTT memory ready.
[1.829747] [drm] GART: num cpu pages 262144, num gpu pages 262144
[1.829797] [drm] PCIE GART of 1024M enabled (table at 0x00F40004).
[1.829885] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[1.829888] [drm] Driver supports precise vblank timestamp query.
[1.829920] [drm] Internal thermal controller without fan control
[1.829923] [drm] amdgpu: dpm initialized
[1.830640] [drm] amdgpu atom DIG backlight initialized
[1.830644] [drm] AMDGPU Display Connectors
[1.830647] [drm] Connector 0:
[1.830649] [drm]   VGA-1
[1.830651] [drm]   HPD2
[1.830654] [drm]   DDC: 0x1950 0x1950 0x1951 0x1951 0x1952 0x1952 0x1953 
0x1953
[1.830657] [drm]   Encoders:
[1.830659] [drm] CRT1: INTERNAL_UNIPHY2
[1.830661] [drm] CRT1: NUTMEG
[1.830663] [drm] Connector 1:
[1.830665] [drm]   HDMI-A-1
[1.830667] [drm]   HPD3
[1.830670] [drm]   DDC: 0x1954 0x1954 0x1955 0x1955 0x1956 0x1956 0x1957 
0x1957
[1.830673] [drm]   Encoders:
[1.830675] [drm] DFP1: INTERNAL_UNIPHY2
[1.830677] [drm] Connector 2:
[1.830679] [drm]   eDP-1
[1.830681] [drm]   HPD1
[1.830684] [drm]   DDC: 0x194c 0x194c 0x194d 0x194d 0x194e 0x194e 0x194f 
0x194f
[1.830687] [drm]   Encoders:
[1.830690] [drm] LCD1: INTERNAL_UNIPHY
[1.831974] [drm] Found UVD firmware Version: 1.55 Family ID: 9
[1.832424] [drm] Found VCE firmware Version: 50.10 Binary ID: 2
[1.923930] [drm] UVD initialized successfully.
[2.042436] [drm] VCE initialized successfully.
[3.097431] [drm] fb mappable at 0xA0428000
[3.097436] [drm] vram apper at 0xA000
[3.097438] [drm] size 8294400
[3.097440] [drm] fb depth is 24
[3.097442] [drm]pitch is 7680
[3.098563] fbcon: amdgpudrmfb (fb0) is primary device
[6.593703] amdgpu :00:01.0: fb0: amdgpudrmfb frame buffer device
[6.610690] [drm] Initialized amdgpu 3.23.0 20150101 for :00:01.0 on 
minor 0

With amdgpu.dc=1, dmesg lines containing drm are:
[1.768255] [drm] radeon kernel modesetting enabled.
[1.770696] fb: switching to radeondrmfb from EFI VGA
[1.816131] [drm] amdgpu kernel modesetting enabled.
[1.824756] [drm] initializing kernel modesetting (KAVERI 0x1002:0x130A 
0x17AA:0x3988 0x00).
[1.824788] [drm] register mmio base: 0xF0B0
[1.824791] [drm] register mmio size: 262144
[1.849601] [drm] BIOS signature incorrect 0 0
[1.849724] [drm] vm size is 64 GB, 2 levels, block size is 10-bit, fragment 
size is 9-bit
[1.849746] [drm] Detected VRAM RAM=1024M, BAR=1024M
[1.849749] [drm] RAM width 64bits UNKNOWN
[1.850061] [drm] amdgpu: 1024M of VRAM memory ready
[1.850065] [drm] amdgpu: 3072M of GTT memory ready.
[1.850080] [drm] GART: num cpu pages 262144, num gpu pages 262144
[1.850131] [drm] PCIE GART of 1024M enabled (table at 0x00F40004).
[1.850256] [drm] Internal thermal controller without fan control
[1.850260] [drm] amdgpu: dpm initialized
[1.851672] [drm] Found UVD firmware Version: 1.55 Family ID: 9
[1.852176] [drm] Found VCE firmware Version: 50.10 Binary ID: 2
[1.854405] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector 
ObjectID from Adapter Service for connector index:3! type 0 expected 3
[1.854493] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector 
ObjectID from Adapter Service for connector

Re: [Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-05-02 Thread David Henningsson 
I booted the 4.17rc1 kernel.

In order to see output I connected an old TV to the DVI output, and that 
output was successfully detected (through an DVI-HDMI adapter, if that 
matters).

The output of /sys/class/drm/card0-HDMI-A-1 in this case:

dpms: Off

enabled: disabled

modes: (empty)

status: disconnected


I then tried switching which monitor was connected to which port. 
Interestingly, in this case both the Dell U2415 and the old TV could 
show output successfully.

// David

On 2018-05-02 19:50, Harry Wentland wrote:
> Thanks, mind posting the same for the non-working kernel? I'm curious if the 
> problem is
> 1) we don't detect the display
> 2) we don't enable the display
> 3) we enable the display but wrong
>

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  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-05-02 Thread Harry Wentland 
Thanks, mind posting the same for the non-working kernel? I'm curious if the 
problem is
1) we don't detect the display
2) we don't enable the display
3) we enable the display but wrong

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  Black screen on 18.04 + AMD RX460

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Re: [Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-05-02 Thread David Henningsson 
I'm not sure if you asked for the contents of these files from a working 
or non-working kernel, but I'll take the working kernel since that's 
obviously a lot easier.

The monitor, Dell U2415, is connected via its input source "HDMI (MHL) 
2". The monitor name "DELL U2415" shows up in the edid file.

status: connected

enabled: enabled

dpms: On

modes:

1920x1200
1920x1080
1920x1080
1920x1080i
1920x1080i
1920x1080
1920x1080i
1920x1080
1920x1080
1920x1080
1920x1080
1920x1080
1600x1200
1280x1024
1280x1024
1152x864
1280x720
1280x720
1280x720
1024x768
1024x768
800x600
800x600
720x576
720x576i
720x480
720x480
720x480i
720x480i
640x480
640x480
640x480
720x400

// David

On 2018-05-02 16:11, Harry Wentland wrote:
> Is it HDMI from the board to HDMI on the monitor? I'd like to rule out
> any use of an adapter or HDMI-to-DVI cable.
>
> What monitor is this?
>
> Is the monitor detected?
>
> What do you see in the 'status', 'enabled', 'dpms', and 'modes' files in
> /sys/class/drm/card0-HDMI-A-1/ ?
>

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-05-02 Thread Harry Wentland 
Is it HDMI from the board to HDMI on the monitor? I'd like to rule out
any use of an adapter or HDMI-to-DVI cable.

What monitor is this?

Is the monitor detected?

What do you see in the 'status', 'enabled', 'dpms', and 'modes' files in
/sys/class/drm/card0-HDMI-A-1/ ?

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-30 Thread Harry Wentland 
What display connectors are being used?

If this is about displays with VGA or LVDS connections this is the same
bug as upstream bug https://bugs.freedesktop.org/show_bug.cgi?id=105880
mentioned above.

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-27 Thread David Henningsson 
Kernel 4.15.0-15-generic #16~lp1761751v2: Boots normally

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-24 Thread Joseph Salisbury 
I built a Bionic test kernel with the following one config option not
set:

CONFIG_DRM_AMD_DC_PRE_VEGA

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1761751

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-24 Thread David Henningsson 
The test kernel (4.15.0-15-generic #16~lp1761751) boots normally.

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-23 Thread Joseph Salisbury 
Also, with this test kernel both the linux-image and linux-image-extra
.debs need to be installed.

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-23 Thread Joseph Salisbury 
I built a Bionic test kernel with the following two config options not
set:

CONFIG_DRM_AMD_DC_PRE_VEGA 
CONFIG_DRM_AMD_DC_DCN1_0

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1761751

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-23 Thread Joseph Salisbury 
I've also been building all of the bisect testing kernel with Bionic
configs, which may explain why they are all bad.

I'll build a bionic test kernel with these two configs reverted back.

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-21 Thread David Henningsson 
Yeah, so I doubt it's a whitespace fix in the rxrpc driver. However, a
diff between the configs on v415-rc2 and v415-rc3 has lots of
differences, the most interesting being this one:


$ diff -u config-4.15.0-041500rc2-generic config-4.15.0-041500rc3-generic
/* ... snip ... */
@@ -5675,9 +5677,9 @@
 # Display Engine Configuration
 #
 CONFIG_DRM_AMD_DC=y
-# CONFIG_DRM_AMD_DC_PRE_VEGA is not set
+CONFIG_DRM_AMD_DC_PRE_VEGA=y
 # CONFIG_DRM_AMD_DC_FBC is not set
-# CONFIG_DRM_AMD_DC_DCN1_0 is not set
+CONFIG_DRM_AMD_DC_DCN1_0=y
 # CONFIG_DEBUG_KERNEL_DC is not set

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-21 Thread David Henningsson 
Kernel 3d7682af228fd78dc46bc: Black screen.

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-20 Thread Joseph Salisbury 
I built the next test kernel, up to the following commit:
3d7682af228fd78dc46bc6bf40e0268ad04521ec

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1761751

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-20 Thread David Henningsson 
Kernel 5fc62f6a139a7b06b027bf442cd4205619506f59: Black screen.

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-20 Thread Joseph Salisbury 
I built the next test kernel, up to the following commit:
5fc62f6a139a7b06b027bf442cd4205619506f59

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1761751

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-19 Thread David Henningsson 
Kernel 282ef4729195c8503f7101d574acfb5e7c8a8209: Black screen.

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-19 Thread Joseph Salisbury 
I built the next test kernel, up to the following commit:
282ef4729195c8503f7101d574acfb5e7c8a8209

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1761751

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-18 Thread David Henningsson 
Linux version 4.15.0-041500rc1-generic (jsalisbury@kathleen) (gcc
version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #201804181224: Black screen

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-18 Thread Joseph Salisbury 
There are only 3 kernels left to test, so I hope we hit a good results
soon.

I built the next test kernel, up to the following commit:
3016dad75b48279e579117ee3ed566ba90a3b023

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1761751

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-18 Thread David Henningsson 
There's nothing graphics related here:

$ git log v4.15-rc2..a0da456bbf95d2a9294799bb --oneline
a0da456 net: phy-micrel: check return code in flp center function
c7799c0 tipc: call tipc_rcv() only if bearer is up in tipc_udp_recv()
cfac7f8 tcp/dccp: block bh before arming time_wait timer
b484d8a Merge branch 'sctp-prsctp-chunk-fixes'
779edd7 sctp: do not abandon the other frags in unsent outq if one msg has 
outstanding frags
e5f6129 sctp: abandon the whole msg if one part of a fragmented message is 
abandoned
d30fc51 sctp: only update outstanding_bytes for transmitted queue when doing 
prsctp_prune
6fef90c net: dsa: bcm_sf2: Set correct CHAIN_ID and slice number mask
f859b4a sit: update frag_off info
3016dad tcp: remove buggy call to tcp_v6_restore_cb()
90a6ec8 act_sample: get rid of tcf_sample_cleanup_rcu()
6c9257a Merge tag 'rxrpc-fixes-20171129' of 
git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
1c08ac0 net: stmmac: dwmac-sun8i: fix allwinner,leds-active-low handling
f8821f9 skbuff: Grammar s/are can/can/, s/change/changes/
a154f8e net: mvpp2: allocate zeroed tx descriptors
282ef47 rxrpc: Fix variable overwrite
5fc62f6 rxrpc: Fix ACK generation from the connection event processor
3d7682a rxrpc: Clean up whitespace

Yet I have double checked that, according /var/log/kern.log,

 - I booted this kernel:

Apr 18 13:18:29 david-desktop kernel: [0.00] Linux version
4.15.0-041500rc1-generic (jsalisbury@kathleen) (gcc version 7.3.0
(Ubuntu 7.3.0-16ubuntu3)) #20180417120

 - I got black screen and the following message:

Apr 18 13:18:29 david-desktop kernel: [1.667490] [drm] Cannot find
any crtc or sizes


And when I last booted this kernel:

Apr 17 06:17:34 david-desktop kernel: [0.00] Linux version
4.15.0-041500rc2-generic (kernel@gloin) (gcc version 7.2.0 (Ubuntu
7.2.0-8ubuntu3)) #201712031230 SMP Sun Dec 3 17:32:03 UTC 2017

...it works just fine.

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-18 Thread David Henningsson 
Kernel a0da456bbf95d2a9294799bb05c61bfb24736bb7: Black screen.

This is starting to feel a bit fishy but maybe git knows what it's
doing. :-)

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-17 Thread Joseph Salisbury 
I built the next test kernel, up to the following commit:
a0da456bbf95d2a9294799bb05c61bfb24736bb7

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1761751

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-16 Thread David Henningsson 
Kernel af57b7fffaf74ff337e479abb19026d72065673b: Black screen.

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-16 Thread Joseph Salisbury 
I built the next test kernel, up to the following commit:
af57b7fffaf74ff337e479abb19026d72065673b

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1761751

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-16 Thread David Henningsson 
Kernel 2391f0b4808e3d5af348324d69f5f45c56a26836: Black screen.

Kernel 4.17-rc1: Black screen.

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-13 Thread Joseph Salisbury 
Whoops, yes, the last kernel was the second.

I built the next test kernel, up to the following commit:
2391f0b4808e3d5af348324d69f5f45c56a26836

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1761751

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-13 Thread David Henningsson 
> I built the first test kernel, up to the following commit:

You mean the second test kernel, I presume?

Kernel 6a5e05a47b6cb8e59bfad351444322b1e4012326: Black screen.

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-12 Thread Joseph Salisbury 
I built the first test kernel, up to the following commit:
6a5e05a47b6cb8e59bfad351444322b1e4012326

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1761751

Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on your test results.

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-11 Thread David Henningsson 
Possibly upstream bug found:
https://bugs.freedesktop.org/show_bug.cgi?id=105880

** Bug watch added: freedesktop.org Bugzilla #105880
   https://bugs.freedesktop.org/show_bug.cgi?id=105880

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-11 Thread David Henningsson 
Kernel 4.15rc2+78d9b048446c3c0a83313444fb706f8f3bccdae7: Black screen.

Note: I installed the linux-image-...-generic deb only as the header
ones seemed to require libssl1.1...?

Anyway, I did some research on my own as well.

First, I had a look at the commits between 4.15rc2 and 4.15rc3. The only
one I could see being relevant is this one:

commit a703c55004e1c5076d57e43771b3e7796ea0
Author: Daniel Vetter 
Date:   Mon Dec 4 21:48:18 2017 +0100

drm: safely free connectors from connector_iter

...it seems relevant because the error I get is "Cannot find any crtc or
sizes", and the code emitting this error message (in
drivers/gpu/drm/drm_fb_helper.c) deals with connectors.

This commit is then referenced in other commits later on as being
required to fix, but since 4.16 is "black screen" too those fixes seems
not have helped here.

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-10 Thread Joseph Salisbury 
I started a kernel bisect between v4.15-rc2 and v4.15-rc3. The kernel
bisect will require testing of about 7-10 test kernels.

I built the first test kernel, up to the following commit:
78d9b048446c3c0a83313444fb706f8f3bccdae7

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1761751

Can you test that kernel and report back if it has the bug or not?  I
will build the next test kernel based on your test results.


Thanks in advance

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-10 Thread Joseph Salisbury 
** Changed in: linux (Ubuntu Bionic)
 Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

** Changed in: linux (Ubuntu Bionic)
   Status: Triaged => In Progress

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Title:
  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-06 Thread David Henningsson 
4.15.0-041500rc2-generic - Boots normally
4.15.0-041500rc3-generic - Black screen
4.15.0-041500rc4-generic - Not tested

So something between rc2 and rc3 it is then...

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Title:
  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-06 Thread David Henningsson 
v4.14 Final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14/ - Boots 
normally
v4.15-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc1/ - Boots 
normally
v4.15-rc5: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc5/ - Black 
screen
v4.15-rc9: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc9/ - Black 
screen
v4.15 Final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15/ - Black screen
v4.16-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.16-rc1/ - Not tested

I'll try rc2, rc3 and rc4 next.

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Title:
  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-06 Thread Joseph Salisbury 
I'd like to perform a bisect to figure out what commit caused this
regression. We need to identify the earliest kernel where the issue
started happening as well as the latest kernel that did not have this
issue.

Can you test the following kernels and report back? We are looking for
the first kernel version that exhibits this bug:

v4.14 Final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14/
v4.15-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc1/
v4.15-rc5: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc5/
v4.15-rc9: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc9/
v4.15 Final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15/
v4.16-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.16-rc1/


You don't have to test every kernel, just up until the kernel that first has 
this bug.

Thanks in advance!


** Changed in: linux (Ubuntu)
   Importance: Undecided => High

** Changed in: linux (Ubuntu)
   Status: Incomplete => Triaged

** Tags added: kernel-da-key

** Also affects: linux (Ubuntu Bionic)
   Importance: High
   Status: Triaged

** Tags added: performing-bisect

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Title:
  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-06 Thread David Henningsson 
Ok, so I found this message when trying to boot a faulty kernel without
workaround, if it helps:

[1.797127] [drm] Cannot find any crtc or sizes
[1.799000] [drm] Initialized amdgpu 3.23.0 20150101 for :23:00.0 on 
minor 0

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Title:
  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-06 Thread David Henningsson 
** Description changed:

  I've been running 16.04 + hwe kernel 4.15 for a while now and recently
  I'm now having a black screen instead. I've also tried an 18.04 daily
  live USB stick, which has the same issue.
  
  It probably started during an upgrade this week or last week. As a start
  I'm blaming the Linux kernel since booting a 4.13 kernel works just
  fine.
  
  Known faulty kernel versions are:
   * linux-image-4.15.0-041500-generic (mainline kernel),
-  * linux-image-4.16.0-041600-generic (mainline kernel),
+  * linux-image-4.16.0-041600-generic (mainline kernel),
   * linux-image-4.15.0-13-generic (Ubuntu kernel),
   * whatever comes with 18.04 daily live USB stick as of 20180404.
  
  Not sure how to best collect logs and system information for you since
  I'm not used to debugging black screens, so I'm just attaching lspci as
  a start.
+ 
+ EDIT: Workaround found by adding "amdgpu.dc=0" to kernel boot
+ parameters.

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Title:
  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-06 Thread David Henningsson 
** Description changed:

  I've been running 16.04 + hwe kernel 4.15 for a while now and recently
  I'm now having a black screen instead. I've also tried an 18.04 daily
  live USB stick, which has the same issue.
  
  It probably started during an upgrade this week or last week. As a start
  I'm blaming the Linux kernel since booting a 4.13 kernel works just
  fine.
  
- Known faulty kernel versions are: 
-  * linux-image-4.15.0-041500-generic (mainline kernel),
-  * linux-image-4.15.0-13-generic (Ubuntu kernel), 
-  * whatever comes with 18.04 daily live USB stick as of 20180404.
+ Known faulty kernel versions are:
+  * linux-image-4.15.0-041500-generic (mainline kernel),
+  * linux-image-4.16.0-041600-generic (mainline kernel),
+  * linux-image-4.15.0-13-generic (Ubuntu kernel),
+  * whatever comes with 18.04 daily live USB stick as of 20180404.
  
  Not sure how to best collect logs and system information for you since
  I'm not used to debugging black screens, so I'm just attaching lspci as
  a start.

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Title:
  Black screen on 18.04 + AMD RX460

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[Bug 1761751] Re: Black screen on 18.04 + AMD RX460

2018-04-06 Thread David Henningsson 
** Attachment added: "lspci.txt"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1761751/+attachment/5104013/+files/lspci.txt

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Title:
  Black screen on 18.04 + AMD RX460

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