<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [sna gen4 w/a] corrupt rendering (including wrong rendering of characters and flickering on redraw)" href="https://bugs.freedesktop.org/show_bug.cgi?id=55500#c157">Comment # 157</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [sna gen4 w/a] corrupt rendering (including wrong rendering of characters and flickering on redraw)" href="https://bugs.freedesktop.org/show_bug.cgi?id=55500">bug 55500</a> from <a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> Chris Wilson</a> <pre>Something worth experimenting with is detuning the GPU, e.g.: diff --git a/src/sna/gen4_render.c b/src/sna/gen4_render.c index e239c21..bc6af68 100644 --- a/src/sna/gen4_render.c +++ b/src/sna/gen4_render.c @@ -52,7 +52,7 @@ */ #define FORCE_SPANS 0 #define FORCE_NONRECTILINEAR_SPANS -1 -#define FORCE_FLUSH 1 /* <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [sna gen4 w/a] corrupt rendering (including wrong rendering of characters and flickering on redraw)" href="show_bug.cgi?id=55500">https://bugs.freedesktop.org/show_bug.cgi?id=55500</a> */ +#define FORCE_FLUSH 0 /* <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [sna gen4 w/a] corrupt rendering (including wrong rendering of characters and flickering on redraw)" href="show_bug.cgi?id=55500">https://bugs.freedesktop.org/show_bug.cgi?id=55500</a> */ #define NO_COMPOSITE 0 #define NO_COMPOSITE_SPANS 0 @@ -74,7 +74,7 @@ #define URB_CS_ENTRIES 0 #define URB_VS_ENTRY_SIZE 1 -#define URB_VS_ENTRIES 32 +#define URB_VS_ENTRIES 16 #define URB_GS_ENTRY_SIZE 0 #define URB_GS_ENTRIES 0 @@ -83,7 +83,7 @@ #define URB_CL_ENTRIES 0 #define URB_SF_ENTRY_SIZE 2 -#define URB_SF_ENTRIES 64 +#define URB_SF_ENTRIES 1 /* * this program computes dA/dx and dA/dy for the texture coordinates along @@ -93,9 +93,9 @@ #define SF_KERNEL_NUM_GRF 16 #define PS_KERNEL_NUM_GRF 32 -#define GEN4_MAX_SF_THREADS 24 -#define GEN4_MAX_WM_THREADS 32 -#define G4X_MAX_WM_THREADS 50 +#define GEN4_MAX_SF_THREADS 8 +#define GEN4_MAX_WM_THREADS 16 +#define G4X_MAX_WM_THREADS 16 static const uint32_t ps_kernel_packed_static[][4] = { #include "exa_wm_xy.g4b"</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>