#5722: Radeon HD driver enhancement [Sapphire 2600 Pro] -------------------------------+---------------------------------------- Reporter: michaelvoliveira | Owner: czeidler Type: enhancement | Status: assigned Priority: normal | Milestone: R1 Component: Drivers/Graphics | Version: R1/Development Resolution: | Keywords: radeonhd sapphire driver Blocked By: | Has a Patch: 0 Platform: All | Blocking: -------------------------------+---------------------------------------- Comment (by michaelvoliveira): Ok! I copy from my /var/log/Xorg.0.log in Ubuntu: {{{ gDisplayMode.timing.pixel_clock = 14850; /* 148.5 mhz gDisplayMode.timing.h_display = 1920; /* in pixels (not character clocks) */ gDisplayMode.timing.h_sync_start = 2008; gDisplayMode.timing.h_sync_end = 2052; gDisplayMode.timing.h_total = 2200; /* h_blank_end gDisplayMode.timing.v_display = 1080; /* in lines */ gDisplayMode.timing.v_sync_start = 1084; gDisplayMode.timing.v_sync_end = 1089; gDisplayMode.timing.v_total = 1125; /* v_blanking gDisplayMode.timing.flags = 0; /* sync polarity, etc. */ gDisplayMode.space = B_RGB32_LITTLE; /* pixel configuration */ gDisplayMode.virtual_width = 1920; /* in pixels */ gDisplayMode.virtual_height = 1080; /* in lines */ gDisplayMode.h_display_start = 0; /* first displayed pixel in line */ gDisplayMode.v_display_start = 0; /* first displayed line */ gDisplayMode.flags = 0; }}} But when Haiku boots, the frequency of 48hrz that you are using is not supported for my monitor, only 60hrz. {{{ *_low = 60L; *_high = 100 * 1000000L; return B_OK; }}} I changed there, but without success. There's another place to set 60hrz? -- Ticket URL: <http://dev.haiku-os.org/ticket/5722#comment:11> Haiku <http://dev.haiku-os.org> Haiku - the operating system.