https://bugzilla.kernel.org/show_bug.cgi?id=204241 --- Comment #53 from Alexander Jones (acjones8@xxxxxxxxxx) --- (In reply to dimitris from comment #52) > This is a shot in the dark/cargo culting it, but in case it helps: > > I had a very similar problem on a T495 (Ryzen 3700U), running Fedora 31, > which resolved itself when the 5.4 series was available in Fedora. > > Before 5.4 was available, I came across reports linking this to a USB > controller of all things, like > https://www.mail-archive.com/debian-kernel@xxxxxxxxxxxxxxxx/msg116563.html. > > In my case the cuprit was: > > 06:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Raven USB 3.1 > > so I started removing the device from the PCI tree before suspend using > /sys/bus/pci/devices/0000:06:00.4/remove and rescanning the PCI bus on > resume. First manually and later though a systemd hook. That worked around > the problem until 5.4 "fixed" this. Thank you for the suggestion! I tried that out on my ThinkPad, disabling all of my USB devices just in case. They are: 00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 20) 00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 49) 01:00.4 USB controller: Realtek Semiconductor Co., Ltd. Device 816d (rev 0e) Unfortunately, this didn't fix the suspend issue, I still get the glitchy screen. On a whim, I tried to disable Bluetooth in the BIOS, as well as the Fingerprint Scanner and TPM chip, but that also didn't have any affect. Coincidentally, I DID hear Kmail pop a notification after resuming, so it seems it's not as dead as I thought, the kernel and even the userland seem to still work then. Must be AMDGPU or something else in the graphics stack that dies, since I can't switch to a VT and suspending while in a VT doesn't work either, and results in the same glitched out mess. -- You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
