From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 41561] New: Hotplug detect does not work for HDMI monitor on Fusion E-350 board
Date: Fri, 7 Oct 2011 08:44:41 -0700 (PDT) [thread overview]
Message-ID: <bug-41561-502@http.bugs.freedesktop.org/> (raw)
https://bugs.freedesktop.org/show_bug.cgi?id=41561
Summary: Hotplug detect does not work for HDMI monitor on
Fusion E-350 board
Product: DRI
Version: unspecified
Platform: x86 (IA32)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: DRM/Radeon
AssignedTo: dri-devel@lists.freedesktop.org
ReportedBy: simon.farnsworth@onelan.co.uk
Using airlied-drm-fixes kernel as of commit
6777a4f6898a53974ef7fe7ce09ec41fae0f32db with Alex Deucher's patch
"drm/radeon/kms: use hardcoded dig encoder to transmitter mapping for DCE4.1"
on top, I'm not seeing uevents from the kernel when I plug and unplug a HDMI
monitor.
dmesg with drm.debug=0xf shows me the following when I connect a monitor:
# dmesg -c
[15202.939581] [drm:evergreen_irq_process], r600_irq_process start: rptr 5872,
wptr 5888
[15202.939609] [drm:evergreen_irq_process], IH: HPD2
[15203.050597] [drm:radeon_atombios_connected_scratch_regs], DFP1 connected
[15203.050605] [drm:output_poll_execute], [CONNECTOR:15:HDMI-A-1] status
updated from 1 to 1
[15203.052661] [drm:output_poll_execute], [CONNECTOR:17:VGA-1] status updated
from 2 to 2
radeonreg suggests that the HPD sense bit is correctly set
# ./radeonreg regs all | grep 00006028 # DC_HPD2_INT_STATUS
00006028 ff0ff012 (-15732718)
When I remove the monitor, I get the following from dmesg and radeonreg:
# dmesg -c
[15307.075271] [drm:evergreen_irq_process], r600_irq_process start: rptr 5888,
wptr 5904
[15307.075300] [drm:evergreen_irq_process], IH: HPD2
[15307.131727] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 192
[15307.131733] Raw EDID:
[15307.131738] 3f ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[15307.131742] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[15307.131745] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[15307.131749] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[15307.131752] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[15307.131756] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[15307.131759] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[15307.131763] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[15307.141965] [drm:radeon_dvi_detect] *ERROR* HDMI-A-1: probed a monitor but
no|invalid EDID
[15307.141975] [drm:radeon_atombios_connected_scratch_regs], DFP1 connected
[15307.141981] [drm:output_poll_execute], [CONNECTOR:15:HDMI-A-1] status
updated from 1 to 1
[15307.144028] [drm:output_poll_execute], [CONNECTOR:17:VGA-1] status updated
from 2 to 2
# ./radeonreg regs all | grep 00006028 # DC_HPD2_INT_STATUS
00006028 ff0ff000 (-15732736)
suggesting that HPD sense bits are being updated correctly by the hardware, but
that this isn't resulting in uevents following through.
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next reply other threads:[~2011-10-07 15:44 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-07 15:44 bugzilla-daemon [this message]
2011-10-07 15:51 ` [Bug 41561] [r600 KMS] Hotplug detect does not work for HDMI monitor on Fusion E-350 board bugzilla-daemon
2011-10-07 15:59 ` bugzilla-daemon
2011-10-07 16:07 ` bugzilla-daemon
2011-10-07 16:26 ` bugzilla-daemon
2011-10-07 17:35 ` bugzilla-daemon
2011-10-07 17:35 ` bugzilla-daemon
2011-10-07 17:53 ` bugzilla-daemon
2011-10-07 18:14 ` bugzilla-daemon
2011-10-07 18:16 ` bugzilla-daemon
2012-01-12 22:19 ` bugzilla-daemon
2012-01-21 16:46 ` bugzilla-daemon
2012-01-21 21:23 ` bugzilla-daemon
2019-11-19 8:21 ` bugzilla-daemon
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