On 21/01/2020 14:11, Thomas Preston wrote: > We're actually debugging this to close-in on *another* ZaphodHead+TearFree > issue which appears on a 4.14 kernel (among other userland upgrades). At > some point :0.0 head gets stuck between two buffers (current + shadow) and > switches between the two causing a flicker or ghosting effect. It's > possibly got something to do with these patches: > > 8bfac0f2 sna/dri2: Only force the TearFree/swcursor hack when using TearFree > 26f8ab54 sna: Restore local damage processing for TearFree/DRI2/swcursor early > 7cf67022 sna/dri2: Prevent the sw cursor from copyig to a buffer as we discard it > > and it goes away when `-Dasync-swap=true` (APPLY_DAMAGE is 0) or we set: > > sna->ignore_copy_area = false; //sna->flags & SNA_TEAR_FREE; > fyi the following patch fixes the flickering issue, so we just moved to upstream + our struct sna fixup in sna_mode_wakeup 95ea0564 sna: Rebalance prefer_blt to weight I915_TILING_Y higher _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
