On Sun, 2018-02-04 at 21:50 +0000, Andy Lutomirski wrote: > On Sat, Feb 3, 2018 at 5:08 PM, Andy Lutomirski <luto@xxxxxxxxxx> wrote: > > On Sat, Feb 3, 2018 at 5:20 AM, Pandiyan, Dhinakaran > > <dhinakaran.pandiyan@xxxxxxxxx> wrote: > >> > >> On Fri, 2018-02-02 at 19:18 +0000, Andy Lutomirski wrote: > >>> I updated to 4.15, and the situation is much worse. With > >>> enable_psr=1, the system survives for several seconds and then the > >>> screen stops updating entirely. If I boot with i915.enable_psr=1, I > >>> get to the Fedora login screen and then the system dies. If I set > >>> enable_psr=1 using sysfs, it does a bit after the next resume. It > >>> seems like it also sometimes hangs even worse a bit after the screen > >>> stops updating, but it's hard to tell. > >> > >> The login screen freeze sounds like what I have. Does this system have > >> DMC firmware? If yes, can you try this series > >> https://patchwork.freedesktop.org/series/37598/. You'll only need > >> patches 1,8,9 and 10. > > > > That fixes the hang. Feel free to add: > > > > Tested-by: Andy Lutomirski <luto@xxxxxxxxxx> > > > > to the i915 parts. Also, any chance of getting it into the 4.15 stable kernels? > > Correction: I'm still getting a second or two of complete screen > freezing every now and then. The kernel says: Thanks a lot for testing. How do you trigger this freeze? Moving the cursor? Did you apply these patches on top of drm-tip or was it mainline? I also have another patch here that addresses screen freezes in console mode with PSR - https://patchwork.freedesktop.org/patch/201144/ in case that is what you are interested in. > > [69400.016524] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic > update failure on pipe A (start=19 end=20) time 198 us, min 1073, max > 1079, scanline start 1068, end 1082 > > So something might still be a bit buggy. This series fixes only the long freezes due to frame counter resets, I am sure there are still other issues with PSR. BTW does your patch on top of these patches help with the cursor lag? -DK _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
