From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 211807] [drm:drm_dp_mst_dpcd_read] *ERROR* mstb 000000004e6288dd port 3: DPCD read on addr 0x60 for 1 bytes NAKed
Date: Tue, 20 Jul 2021 12:19:21 +0000 [thread overview]
Message-ID: <bug-211807-2300-BzddJGSJWD@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-211807-2300@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=211807
pavol.harar@gmail.com changed:
What |Removed |Added
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CC| |pavol.harar@gmail.com
--- Comment #2 from pavol.harar@gmail.com ---
I am experiencing the aforementioned error as well.
[drm:drm_dp_mst_dpcd_read [drm_kms_helper]] *ERROR* mstb 00000000f00db6df port
0: DPCD read on addr 0x4b0 for 1 bytes NAKed
I have problems connecting my ThinkPad X1 Carbon 7gen to two external DP
monitors via a ThinkPad USB-C gen2 docking station. Linux is not officially
supported for this dock unfortunately. The problem is that the monitors work,
but seemingly randomly they stop working, either I try to go to Ubuntu settings
or try to open some program with a keyboard shortcut. The monitors flicker,
then die and I have to reboot. Sometimes just reconnecting the cable works, but
usually not. Sometimes when I connect my phone to the dock the monitors start
working again, but most often not. There is a lot of people having these
problems but I have not found any solution. In dmseg only this error appears. I
am to the best of my knowledge up to date with everything, kernel, bios,
firmware etc.
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next prev parent reply other threads:[~2021-07-20 12:19 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-16 20:53 [Bug 211807] New: [drm:drm_dp_mst_dpcd_read] *ERROR* mstb 000000004e6288dd port 3: DPCD read on addr 0x60 for 1 bytes NAKed bugzilla-daemon
2021-04-25 2:50 ` [Bug 211807] " bugzilla-daemon
2021-07-20 12:19 ` bugzilla-daemon [this message]
2021-08-27 22:02 ` bugzilla-daemon
2021-09-16 21:48 ` bugzilla-daemon
2021-09-16 21:49 ` bugzilla-daemon
2021-09-17 19:09 ` bugzilla-daemon
2021-09-17 19:13 ` bugzilla-daemon
2021-09-17 20:55 ` bugzilla-daemon
2021-09-18 11:59 ` bugzilla-daemon
2021-09-18 12:56 ` bugzilla-daemon
2021-10-23 21:03 ` bugzilla-daemon
2021-10-26 9:27 ` bugzilla-daemon
2021-10-26 13:09 ` bugzilla-daemon
2021-11-19 12:25 ` bugzilla-daemon
2021-11-19 14:35 ` bugzilla-daemon
2021-11-23 15:48 ` bugzilla-daemon
2021-11-24 13:22 ` bugzilla-daemon
2021-12-13 11:22 ` bugzilla-daemon
2021-12-13 11:23 ` bugzilla-daemon
2022-03-13 8:08 ` bugzilla-daemon
2022-04-07 15:48 ` bugzilla-daemon
2022-07-30 16:29 ` bugzilla-daemon
2022-08-03 15:31 ` bugzilla-daemon
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