From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 42654] New: [3.1 regression] hwmon sysfs entry is missing
Date: Mon, 07 Nov 2011 08:49:12 +0000
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https://bugs.freedesktop.org/show_bug.cgi?id=42654
Bug #: 42654
Summary: [3.1 regression] hwmon sysfs entry is missing
Classification: Unclassified
Product: DRI
Version: unspecified
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: DRM/Radeon
AssignedTo: dri-devel@lists.freedesktop.org
ReportedBy: mikhail.vorozhtsov@gmail.com
Created attachment 53233
--> https://bugs.freedesktop.org/attachment.cgi?id=53233
Full dmesg log
After upgrading to kernel 3.1 the following lines have appeared in my dmesg:
[ 0.876923] [drm:radeon_dp_i2c_aux_ch] *ERROR* aux i2c too many retries,
giving up
[ 0.877077] [drm:radeon_dp_i2c_aux_ch] *ERROR* aux i2c too many retries,
giving up
[ 0.877274] [drm:radeon_dp_i2c_aux_ch] *ERROR* aux i2c too many retries,
giving up
[ 0.877426] [drm:radeon_dp_i2c_aux_ch] *ERROR* aux i2c too many retries,
giving up
and the video card hwmon entry has disappeared from /sys/class/hwmon.
The hardware is HD6870:
01:00.0 VGA compatible controller: ATI Technologies Inc Barts XT [ATI Radeon HD
6800 Series] (prog-if 00 [VGA contr
oller])
Subsystem: Micro-Star International Co., Ltd. Device 2510
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR-
Capabilities: [150 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt-
RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Kernel driver in use: radeon
Kernel modules: radeon
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