https://bugzilla.kernel.org/show_bug.cgi?id=201439

--- Comment #2 from fin4478@hotmail.com --- I can not bisect, because I delete the linux directory before the git clone command and then I apply my patches. Then the git is broken. It should be easy to AMD developers to find this bug with dmesg functions traces.

https://bugzilla.kernel.org/show_bug.cgi?id=201439

--- Comment #4 from fin4478@hotmail.com --- Monitor blanking works with the mainline kernel 4.19.0 that was released yesterday.

https://bugzilla.kernel.org/show_bug.cgi?id=201439

fin4478@hotmail.com changed:

What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Resolution|CODE_FIX |---

--- Comment #6 from fin4478@hotmail.com --- I tested more latest wip kernel. Monitor blanking works in one minute but not after 30 minutes. System freezes and no errors in the logs when waking up.

Monitor sleeping after 30 minutes and waking up causes system freeze and amdgpu dmesg errors, attached.

https://bugzilla.kernel.org/show_bug.cgi?id=201439

--- Comment #8 from fin4478@hotmail.com --- Created attachment 279235 --> https://bugzilla.kernel.org/attachment.cgi?id=279235&action=edit 4.19.0 kernel dmesg errors when waking up after monitor blanking

The mainline kernel 4.19.0 from kernel.org works, but after blanking the monitor for 4 hours and waking up there is familiar amdgpu errors in dmesg. However the system works fine.

https://bugzilla.kernel.org/show_bug.cgi?id=201439

fin4478@hotmail.com changed:

What |Removed |Added ---------------------------------------------------------------------------- Kernel Version|drm-next-4.21-wip |4.20-rc1, | |drm-next-4.21-wip, Regression|No |Yes Summary|Amdgpu: general protection |Amdgpu: system freeze when |fault at dce110_vblank_set |waking up from monitor |in display resume |sleep

--- Comment #10 from fin4478@hotmail.com --- The mainline kernel 4.19.0 from kernel.org is the best, no system freeze when waking up from monitor sleep.

Latest mainline kernel 4.20-rc1 from kernel.org and AMD drm-next-4.21-wip compiled at Saturday do freeze the system when waking up from monitor sleep after 10 minutes and more.

There is ^@^@^@ garbage strings in the /var/log/messages file when the system freezes.

My computer is always on, only my Samsung 24" S24F350H hdmi monitor sleeps.

I have ASUS Radeon RX 570 4GB Expedition OC now.

System: Host: ryzenpc Kernel: 4.19.0 x86_64 bits: 64 Desktop: Xfce 4.12.4 Distro: Debian GNU/Linux buster/sid Machine: Type: Desktop Mobo: ASUSTeK model: PRIME B350M-K v: Rev X.0x serial: <root required> UEFI: American Megatrends v: 4023 date: 08/20/2018 CPU: 6-Core: AMD Ryzen 5 1600 type: MT MCP speed: 2807 MHz Graphics: Device-1: AMD Ellesmere [Radeon RX 470/480] driver: amdgpu v: kernel Display: x11 server: X.Org 1.20.3 driver: amdgpu,ati unloaded: fbdev,modesetting,vesa resolution: 1920x1080~60Hz OpenGL: renderer: Radeon RX 570 Series (POLARIS10 DRM 3.27.0 4.19.0 LLVM 7.0.0) v: 4.5 Mesa 18.3.0-devel (git-9007c0e 2018-10-29 bionic-oibaf-ppa) Network: Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet driver: r8169 Device-2: Huawei type: USB driver: cdc_ether,usb-storage Drives: Local Storage: total: 476.95 GiB used: 250.43 GiB (52.5%) Info: Processes: 242 Uptime: 9m Memory: 7.79 GiB used: 637.4 MiB (8.0%) Shell: bash inxi: 3.0.27

https://bugzilla.kernel.org/show_bug.cgi?id=201439

--- Comment #11 from fin4478@hotmail.com --- Maybe it is the vsync option in the Xfce Compositor settings that causes the desktop and system to freeze when the monitor is waking up from standby after an hour. This seems to work with the latest AMD wip kernel when vsync is disabled: sudo xset dpms 300 0 0