> -----Original Message----- > From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf > Of Martin Babutzka > Sent: Friday, September 29, 2017 2:00 PM > To: amd-gfx at lists.freedesktop.org > Subject: Regressions in amd-staging-4.12 and amd-staging-drm-next > > Hello, > > At first congrats for submitting the pull request. I hope the dc code > is accepted and included in the 4.15 kernel. > > Me and some other users of my kernel builds (https://github.com/M-Bab/l > inux-kernel-amdgpu-binaries) found further regressions in builds based > on amd-staging-4.12 and amd-staging-drm-next. I can confirm these > regressions affecting my PC with R9 380 GPU, running on Xubuntu 17.04 > with mesa 17.2 stable: > > amd-staging-4.12: When the GPU needs to wake up there is a significant > chance that the display freezes (black screen, login screen or crazy > pattern). Can't tell if the whole system is frozen as well. This can > happen either after wake-up from standby or after resuming from > lockscreen (where the GPU seams to be shut off as well). > > amd-staging-drm-next: Considering it is the latest codebase the > performance is a bit underwhelming: It starts with trace messages in > dmesg during boot (attached). Later on running anything graphical > results in full-screen flicker and flickering black lines. > > Are these issues known already? I can try to git bisect any of them if > you are interested. > How should dc-kernel users proceed? Is the amd-staging-drm-next the > recommended branch until the dc-code is merged? drm-next-4.15-dc has the latest dc code for upstream. It has some additional fixes for dc against the latest core drm changes in drm-next that are not in amd-staging-drm-next yet. Alex
