https://bugzilla.kernel.org/show_bug.cgi?id=211807
Renaud R. (kernelorg@iopsthecloud.com) changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |kernelorg@iopsthecloud.com
--- Comment #18 from Renaud R. (kernelorg@iopsthecloud.com) --- My setup: * Latitude E5570 via dock DisplayPort * Kernel: https://bugzilla.kernel.org
I randomly have blackscreen and I see in my logs (dmesg): * i915 0000:00:02.0: [drm] *ERROR* mstb 00000000adcef9b1 port 1: DPCD read on addr 0x4b0 for 1 bytes NAKed * [38971.851918] i915 0000:00:02.0: [drm] *ERROR* mstb 00000000adcef9b1 port 1: DPCD read on addr 0x4b0 for 1 bytes NAKed
My laptop was reinstall from and old ubuntu 18.04 to 20.04. I can't remember the kernel used in Unbuntu 18.04 but I didn't have this issue.