* [Bug 109006] Hotplugging DP1.2 monitor(s) causes machine to hang waiting for page flip
@ 2018-12-11 3:34 bugzilla-daemon
2018-12-11 23:14 ` bugzilla-daemon
2019-11-19 9:08 ` bugzilla-daemon
0 siblings, 2 replies; 3+ messages in thread
From: bugzilla-daemon @ 2018-12-11 3:34 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=109006
Bug ID: 109006
Summary: Hotplugging DP1.2 monitor(s) causes machine to hang
waiting for page flip
Product: DRI
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: DRM/AMDgpu
Assignee: dri-devel@lists.freedesktop.org
Reporter: hime@is.fucking.moe
Created attachment 142774
--> https://bugs.freedesktop.org/attachment.cgi?id=142774&action=edit
dmesg: DRM call stack
Greetings,
I am using kernel 4.19.8, I have two 4K panels which have DP1.2 inputs as well
as an AMD RX560 GPU[1]. I am experiencing an issue where my machine softlocks
when they are disconnected & subsequently reconnected. If the monitors are
power-cycled ,or the DP cable is hotplugged, my kernel log slowly accumulates
messages like "*ERROR* [PLANE:36:plane-0] flip_done timed out" meanwhile my
graphical environment hangs, waiting for the pageflip which never successfully
happens. One of my monitors also happens be HDMI2.0 capable, and when connected
via HDMI that monitor *does not* lock up the machine in this way, so I believe
this issue to be DisplayPort specific.
Attached is a dmesg from a recent session exhibiting such a softlock, the
relevant portions are near the end. All my softlocks have `RIP:
0010:prepare_flip_isr+0x5f/0x70 [amdgpu]` in common. I will note that the
driver does seem to at least partially initialize the monitors upon
reconnection, as they do not display "no signal" nor enter sleep mode.
[1]: Advanced Micro Devices, Inc. [AMD/ATI] Baffin [Radeon RX 550 640SP / RX
560/560X] [1002:67ff] (rev cf)
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* [Bug 109006] Hotplugging DP1.2 monitor(s) causes machine to hang waiting for page flip
2018-12-11 3:34 [Bug 109006] Hotplugging DP1.2 monitor(s) causes machine to hang waiting for page flip bugzilla-daemon
@ 2018-12-11 23:14 ` bugzilla-daemon
2019-11-19 9:08 ` bugzilla-daemon
1 sibling, 0 replies; 3+ messages in thread
From: bugzilla-daemon @ 2018-12-11 23:14 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=109006
--- Comment #1 from Robert Straw <hime@is.fucking.moe> ---
I was going to attempt to bisect this tonight: however on a lark I decided to
try 4.20-rc6 as it is nearing completion. I am pleased to report that I am
*not* seeing this issue on 4.20-rc6. I suspect that the kernel commit a81a7c9
which loads polaris11_k_mc.bin (which I got from here[1]) for my particular
card may have fixed the issue.
[1]: https://people.freedesktop.org/~agd5f/radeon_ucode/
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^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug 109006] Hotplugging DP1.2 monitor(s) causes machine to hang waiting for page flip
2018-12-11 3:34 [Bug 109006] Hotplugging DP1.2 monitor(s) causes machine to hang waiting for page flip bugzilla-daemon
2018-12-11 23:14 ` bugzilla-daemon
@ 2019-11-19 9:08 ` bugzilla-daemon
1 sibling, 0 replies; 3+ messages in thread
From: bugzilla-daemon @ 2019-11-19 9:08 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=109006
Martin Peres <martin.peres@free.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |MOVED
--- Comment #2 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.
You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/644.
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