occasional distorted/flickering draw or redraw with AMD Thames [Radeon HD 7550M/7570M/7650M]

[grahamperrin]

Describe the bug

Sometimes when using an application (such as Thunderbird) on a display to the left (DisplayPort, HP dock with an HP EliteBook 8570p), there's what seems to be a rendering issue (not necessarily on the same display).

FreeBSD version

% uname -aKU
FreeBSD mowa219-gjp4-8570p-freebsd 14.0-CURRENT FreeBSD 14.0-CURRENT #21 main-n258027-c9baa974717a: Fri Sep 16 15:41:27 BST 2022     grahamperrin@mowa219-gjp4-8570p-freebsd:/usr/obj/usr/src/amd64.amd64/sys/GENERIC-NODEBUG amd64 1400067 1400067
% 

PCI Info

pciconf -lv

hostb0@pci0:0:0:0: class=0x060000 rev=0x09 hdr=0x00 vendor=0x8086 device=0x0154 subvendor=0x103c subdevice=0x17a7 vendor = 'Intel Corporation' device = '3rd Gen Core processor DRAM Controller' class = bridge subclass = HOST-PCI pcib1@pci0:0:1:0: class=0x060400 rev=0x09 hdr=0x01 vendor=0x8086 device=0x0151 subvendor=0x8086 subdevice=0x2010 vendor = 'Intel Corporation' device = 'Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port' class = bridge subclass = PCI-PCI xhci0@pci0:0:20:0: class=0x0c0330 rev=0x04 hdr=0x00 vendor=0x8086 device=0x1e31 subvendor=0x103c subdevice=0x17a7 vendor = 'Intel Corporation' device = '7 Series/C210 Series Chipset Family USB xHCI Host Controller' class = serial bus subclass = USB none0@pci0:0:22:0: class=0x078000 rev=0x04 hdr=0x00 vendor=0x8086 device=0x1e3a subvendor=0x103c subdevice=0x17a7 vendor = 'Intel Corporation' device = '7 Series/C216 Chipset Family MEI Controller' class = simple comms uart2@pci0:0:22:3: class=0x070002 rev=0x04 hdr=0x00 vendor=0x8086 device=0x1e3d subvendor=0x103c subdevice=0x17a7 vendor = 'Intel Corporation' device = '7 Series/C210 Series Chipset Family KT Controller' class = simple comms subclass = UART em0@pci0:0:25:0: class=0x020000 rev=0x04 hdr=0x00 vendor=0x8086 device=0x1502 subvendor=0x103c subdevice=0x17a7 vendor = 'Intel Corporation' device = '82579LM Gigabit Network Connection (Lewisville)' class = network subclass = ethernet ehci0@pci0:0:26:0: class=0x0c0320 rev=0x04 hdr=0x00 vendor=0x8086 device=0x1e2d subvendor=0x103c subdevice=0x17a7 vendor = 'Intel Corporation' device = '7 Series/C216 Chipset Family USB Enhanced Host Controller' class = serial bus subclass = USB hdac1@pci0:0:27:0: class=0x040300 rev=0x04 hdr=0x00 vendor=0x8086 device=0x1e20 subvendor=0x103c subdevice=0x17a7 vendor = 'Intel Corporation' device = '7 Series/C216 Chipset Family High Definition Audio Controller' class = multimedia subclass = HDA pcib2@pci0:0:28:0: class=0x060400 rev=0xc4 hdr=0x01 vendor=0x8086 device=0x1e10 subvendor=0x103c subdevice=0x17a7 vendor = 'Intel Corporation' device = '7 Series/C216 Chipset Family PCI Express Root Port 1' class = bridge subclass = PCI-PCI pcib3@pci0:0:28:2: class=0x060400 rev=0xc4 hdr=0x01 vendor=0x8086 device=0x1e14 subvendor=0x103c subdevice=0x17a7 vendor = 'Intel Corporation' device = '7 Series/C210 Series Chipset Family PCI Express Root Port 3' class = bridge subclass = PCI-PCI pcib4@pci0:0:28:3: class=0x060400 rev=0xc4 hdr=0x01 vendor=0x8086 device=0x1e16 subvendor=0x103c subdevice=0x17a7 vendor = 'Intel Corporation' device = '7 Series/C216 Chipset Family PCI Express Root Port 4' class = bridge subclass = PCI-PCI ehci1@pci0:0:29:0: class=0x0c0320 rev=0x04 hdr=0x00 vendor=0x8086 device=0x1e26 subvendor=0x103c subdevice=0x17a7 vendor = 'Intel Corporation' device = '7 Series/C216 Chipset Family USB Enhanced Host Controller' class = serial bus subclass = USB isab0@pci0:0:31:0: class=0x060100 rev=0x04 hdr=0x00 vendor=0x8086 device=0x1e55 subvendor=0x103c subdevice=0x17a7 vendor = 'Intel Corporation' device = 'QM77 Express Chipset LPC Controller' class = bridge subclass = PCI-ISA ahci0@pci0:0:31:2: class=0x010601 rev=0x04 hdr=0x00 vendor=0x8086 device=0x1e03 subvendor=0x103c subdevice=0x17a7 vendor = 'Intel Corporation' device = '7 Series Chipset Family 6-port SATA Controller [AHCI mode]' class = mass storage subclass = SATA vgapci0@pci0:1:0:0: class=0x030000 rev=0x00 hdr=0x00 vendor=0x1002 device=0x6841 subvendor=0x103c subdevice=0x17a9 vendor = 'Advanced Micro Devices, Inc. [AMD/ATI]' device = 'Thames [Radeon HD 7550M/7570M/7650M]' class = display subclass = VGA hdac0@pci0:1:0:1: class=0x040300 rev=0x00 hdr=0x00 vendor=0x1002 device=0xaa90 subvendor=0x103c subdevice=0x17a9 vendor = 'Advanced Micro Devices, Inc. [AMD/ATI]' device = 'Turks HDMI Audio [Radeon HD 6500/6600 / 6700M Series]' class = multimedia subclass = HDA iwn0@pci0:4:0:0: class=0x028000 rev=0x34 hdr=0x00 vendor=0x8086 device=0x0082 subvendor=0x8086 subdevice=0x1301 vendor = 'Intel Corporation' device = 'Centrino Advanced-N 6205 [Taylor Peak]' class = network %

DRM KMOD version

drm-510-kmod 5.10.113_6

To Reproduce

Not consistently reproducible, but the issue seems most likely to occur when a click on a web link in an e-mail in Thunderbird causes the web page to open in a new tab.

Pictured below: the distortion on the display to the right flickers rapidly until, for example, I click anywhere in the screen on that display.

Alternative workarounds probably include (KWin) Alt-Tab task switching.

Screenshots

Pictured after working around the issue (whilst drafting this report):

Additional context

From https://gitter.im/FreeBSDDesktop/Lobby/archives/2022/09/14?at=63212977cf6cfd27af897267 (2022-09-14):

The next day:

Sep 15 09:11:48 mowa219-gjp4-8570p-freebsd pkg[55889]: thunderbird upgraded: 91.13.0_1 -> 102.2.2

With the significantly different appearance of Thunderbird, I have not yet seen distortion of content of the Confirm Deletion window.

In the first screenshot above, there is distortion of part of the GKrellM window. If I recall correctly: with the preceding occurrence of the issue, the GKrellM window was entirely free from distortion. All three windows on this screen are set to Keep Above Others.

[grahamperrin]

When the issue occurs: nothing relevant in dmesg or /var/log/messages ...

[grahamperrin]

... seems most likely to occur when a click on a web link in an e-mail in Thunderbird causes the web page to open in a new tab. ...

Symptoms recurred when I used Oracle VM VirtualBox Manager (display to the left) to start a guest from its powered off state. The display to the right was bugged, IIRC immediately after the window for the guest appeared.

[grahamperrin]

The same symptoms, occasionally, with drm-515-kmod.