<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [KBL] Black screen with I915_FORMAT_MOD_Y_TILED_CCS (Requested display configuration exceeds system DDB limitations)" href="https://bugs.freedesktop.org/show_bug.cgi?id=111995#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [KBL] Black screen with I915_FORMAT_MOD_Y_TILED_CCS (Requested display configuration exceeds system DDB limitations)" href="https://bugs.freedesktop.org/show_bug.cgi?id=111995">bug 111995</a> from <a class="email" href="mailto:marius.vlad@collabora.com" title="Marius Vlad <marius.vlad@collabora.com>"> Marius Vlad</a> <pre>Hmm, I always get that when trying to use both planes, but when using AR24. XR24 works just fine on scan-out (primary) [51903.929518] [drm:skl_allocate_pipe_ddb [i915]] Requested display configuration exceeds system DDB limitations [51903.929551] [drm:skl_allocate_pipe_ddb [i915]] minimum required 964/847 [51903.929584] [drm:drm_atomic_check_only [drm]] atomic driver check for 000000004889d62d failed: -22 [51903.929615] [drm:drm_atomic_state_default_clear [drm]] Clearing atomic state 000000004889d62d but even so, weston is able to continue just fine switching to mixed mode of compositing [atomic] drmModeAtomicCommit [view] failing state generation: atomic test not OK [repaint] could not build planes-only state, trying mixed For reference this seems to happen when using AR24 on scan-out not XR24 (which I tested many times before). Here's the current state of both planes, before doing the TEST_ONLY bit. [CRTC:47] 22 (MODE_ID) -> 120 (0x78) [CRTC:47] 21 (ACTIVE) -> 1 (0x1) [CONN:85] 19 (CRTC_ID) -> 47 (0x2f) [PLANE:37] 16 (FB_ID) -> 122 (0x7a) [PLANE:37] 19 (CRTC_ID) -> 47 (0x2f) [PLANE:37] 8 (SRC_X) -> 0 (0x0) [PLANE:37] 9 (SRC_Y) -> 0 (0x0) [PLANE:37] 10 (SRC_W) -> 251658240 (0xf000000) [PLANE:37] 11 (SRC_H) -> 141557760 (0x8700000) [PLANE:37] 12 (CRTC_X) -> 0 (0x0) [PLANE:37] 13 (CRTC_Y) -> 0 (0x0) [PLANE:37] 14 (CRTC_W) -> 3840 (0xf00) [PLANE:37] 15 (CRTC_H) -> 2160 (0x870) [PLANE:37] FORMAT: XRGB8888 [PLANE:30] 16 (FB_ID) -> 121 (0x79) [PLANE:30] 19 (CRTC_ID) -> 47 (0x2f) [PLANE:30] 8 (SRC_X) -> 0 (0x0) [PLANE:30] 9 (SRC_Y) -> 0 (0x0) [PLANE:30] 10 (SRC_W) -> 251658240 (0xf000000) [PLANE:30] 11 (SRC_H) -> 141557760 (0x8700000) [PLANE:30] 12 (CRTC_X) -> 0 (0x0) [PLANE:30] 13 (CRTC_Y) -> 0 (0x0) [PLANE:30] 14 (CRTC_W) -> 3840 (0xf00) [PLANE:30] 15 (CRTC_H) -> 2160 (0x870) [PLANE:30] FORMAT: ARGB8888 Do note, this is with e-DP as connector (it's previous gen xps 13'' laptop w/ i7-8550U).</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>