[Bug 212959] New: [drm:dm_helpers_dp_write_dpcd [amdgpu]] *ERROR* Failed to find connector for link!
https://bugzilla.kernel.org/show_bug.cgi?id=212959
Bug ID: 212959 Summary: [drm:dm_helpers_dp_write_dpcd [amdgpu]] *ERROR* Failed to find connector for link! Product: Drivers Version: 2.5 Kernel Version: 5.4, 5.8 Hardware: Other OS: Linux Tree: Mainline Status: NEW Severity: blocking Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: tob88570@gmail.com Regression: No
This error occurs on all distros based on Ubuntu 20.04 with Linux Kernel 5.4 as well as Kernel 5.8, that attempt to load a GUI, upon booting from a mounted iso into said Operating Systems installations.
This error occurs at least for AMD RYZEN 7 4700U Apus with AMD VEGA 7 RENOIR graphics.
https://bugzilla.kernel.org/show_bug.cgi?id=212959
tob88570@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |tob88570@gmail.com
--- Comment #1 from tob88570@gmail.com --- Little correction *as well as Linux Distros with Kernel 5.8 not necessarily based on Ubuntu 20.04.
https://bugzilla.kernel.org/show_bug.cgi?id=212959
Alex Deucher (alexdeucher@gmail.com) changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |alexdeucher@gmail.com
--- Comment #2 from Alex Deucher (alexdeucher@gmail.com) --- Please attach the dmesg output for your system. Other than the error, is the GPU otherwise working correctly?
https://bugzilla.kernel.org/show_bug.cgi?id=212959
--- Comment #3 from tob88570@gmail.com --- Created attachment 296713 --> https://bugzilla.kernel.org/attachment.cgi?id=296713&action=edit Dmesg output
https://bugzilla.kernel.org/show_bug.cgi?id=212959
--- Comment #4 from tob88570@gmail.com --- (In reply to Alex Deucher from comment #2)
Please attach the dmesg output for your system. Other than the error, is the GPU otherwise working correctly?
The GPU otherwise is working correctly. On other Operating Systems.
Also this issue is exclusive to attempting to boot the live systems or installations from a mounted version of the respective downloaded ISO file.
If you flash it to USB, the installation works fine, despite somewhat the same errors. I am writing this currently from a working PopOS installation.
https://bugzilla.kernel.org/show_bug.cgi?id=212959
tob88570@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Summary|[drm:dm_helpers_dp_write_dp |[drm:dm_helpers_dp_write_dp |cd [amdgpu]] *ERROR* Failed |cd [amdgpu]] *ERROR* Failed |to find connector for link! |to find connector for link! | |- Exclusively an issue by | |booting from mounted ISOs | |of respective OS.
https://bugzilla.kernel.org/show_bug.cgi?id=212959
tob88570@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Severity|blocking |normal
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