https://bugzilla.kernel.org/show_bug.cgi?id=210739
Bug ID: 210739
Summary: Regression in 5.10, Oops at
amdgpu_connector_dp_detect()
Product: Drivers
Version: 2.5
Kernel Version: 5.10
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - non Intel)
Assignee: [email protected]
Reporter: [email protected]
Regression: Yes
Created attachment 294169
--> https://bugzilla.kernel.org/attachment.cgi?id=294169&action=edit
dmesg from where X11 initializes
Booting into mainline 5.10.1 oopses in the amdgpu module in the routine
amdgpu_connector_dp_detect(). Kernels 5.9.15 and below are not affected.
Full dmesg attached. Brief snippet of oops:
BUG: kernel NULL pointer dereference, address: 0000000000000060
Call Trace:
amdgpu_connector_dp_detect+0x159/0x320 [amdgpu]
drm_helper_probe_detect+0x93/0xd0
drm_helper_probe_single_connector_modes+0x60c/0x7e0
drm_client_modeset_probe+0x25c/0x13c0
[etc]
The GPU is inbuilt within the AMD A10-7870K (Radeon R7).
At system start:
modprobe amdgpu clk_support=1
modprobe radeon clk_support=0
Console output seems to be OK during system initialization. But as soon as
Xorg starts, the oops occurs, and video output ceases. System is still
responsive via the network.
The oops locks the video hardware spectacularly. Neither the BIOS nor pressing
the motherboard <reset> button has any effect. Only a power-cycle will get
things back to normal.
--
You are receiving this mail because:
You are watching the assignee of the bug.
_______________________________________________
dri-devel mailing list
[email protected]
https://lists.freedesktop.org/mailman/listinfo/dri-devel
