#8457: Blank screen after boot on Radeon Mobility 4670 HD ------------------------------------------+---------------------------- Reporter: kvark | Owner: kallisti5 Type: bug | Status: new Priority: normal | Milestone: R1 Component: Drivers/Graphics/radeon_hd | Version: R1/Development Resolution: | Keywords: blank radeon Blocked By: | Blocking: 7662 Has a Patch: 0 | Platform: x86 ------------------------------------------+---------------------------- Comment (by kallisti5): Ha.. this confirms i'm not crazy. If we disassemble (http://cgit.freedesktop.org/~mhopf/AtomDis/) the atombios you provided... {{{ kallisti5@houvonglucka01 AtomDis :( $ ./atomdis ~/radeon_hd_bios_1002_9488_0.bin d 0006 Read 20000 bytes of data from /home/kallisti5/radeon_hd_bios_1002_9488_0.bin data_table 0000acf0 #06 (LVDS_Info): Size 0036 Format Rev. 01 Param Rev. 00 Content Rev. 02 00000000: 302a 7805 1c01 1a04 1000 2c00 0*x.......,. 00000010: 7000 0100 0300 0000 0000 0000 0600 0000 p............... 00000020: 0000 2000 f401 0324 4d3c 0101 0000 0000 .. ....$M<...... 00000030: 0030 0000 0000 .0.... 0000: ATOM_COMMON_TABLE_HEADER sHeader : 0000: USHORT usStructureSize = 0x0036 (54) 0002: UCHAR ucTableFormatRevision = 0x01 (1) 0003: UCHAR ucTableContentRevision = 0x02 (2) 0004: ATOM_DTD_FORMAT sLCDTiming : 0004: USHORT usPixClk = 0x2a30 (10800) 0006: USHORT usHActive = 0x0578 (1400) 0008: USHORT usHBlanking_Time = 0x011c (284) 000a: USHORT usVActive = 0x041a (1050) 000c: USHORT usVBlanking_Time = 0x0010 (16) 000e: USHORT usHSyncOffset = 0x002c (44) 0010: USHORT usHSyncWidth = 0x0070 (112) 0012: USHORT usVSyncOffset = 0x0001 (1) 0014: USHORT usVSyncWidth = 0x0003 (3) 0016: USHORT usImageHSize = 0x0000 (0) 0018: USHORT usImageVSize = 0x0000 (0) 001a: UCHAR ucHBorder = 0x00 (0) 001b: UCHAR ucVBorder = 0x00 (0) 001c: ATOM_MODE_MISC_INFO_ACCESS susModeMiscInfo : 001c: (union) ATOM_MODE_MISC_INFO sbfAccess : USHORT HorizontalCutOff:1 = 0x0000 (0) USHORT HSyncPolarity:1 = 0x0001 (1) USHORT VSyncPolarity:1 = 0x0001 (1) USHORT VerticalCutOff:1 = 0x0000 (0) USHORT H_ReplicationBy2:1 = 0x0000 (0) USHORT V_ReplicationBy2:1 = 0x0000 (0) USHORT CompositeSync:1 = 0x0000 (0) USHORT Interlace:1 = 0x0000 (0) USHORT DoubleClock:1 = 0x0000 (0) USHORT RGB888:1 = 0x0000 (0) USHORT Reserved:6 = 0x0000 (0) 001c: (union) USHORT usAccess = 0x0006 (6) 001e: UCHAR ucInternalModeNumber = 0x00 (0) 001f: UCHAR ucRefreshRate = 0x00 (0) 0020: USHORT usExtInfoTableOffset = 0x0000 (0) 0022: USHORT usSupportedRefreshRate = 0x0020 (32) 0024: USHORT usOffDelayInMs = 0x01f4 (500) 0026: UCHAR ucPowerSequenceDigOntoDEin10Ms = 0x03 (3) 0027: UCHAR ucPowerSequenceDEtoBLOnin10Ms = 0x24 (36) 0028: UCHAR ucLVDS_Misc = 0x4d (77) 0029: UCHAR ucPanelDefaultRefreshRate = 0x3c (60) 002a: UCHAR ucPanelIdentification = 0x01 (1) 002b: UCHAR ucSS_Id = 0x01 (1) 002c: USHORT usLCDVenderID = 0x0000 (0) 002e: USHORT usLCDProductID = 0x0000 (0) 0030: UCHAR ucLCDPanel_SpecialHandlingCap = 0x00 (0) 0031: UCHAR ucPanelInfoSize = 0x30 (48) 0032: UCHAR ucReserved [0] = 0x00 (0) 0033: UCHAR ucReserved [1] = 0x00 (0) Total data structure size: 0034 }}} it definitely tells us: usHActive = 0x0578 (1400) usVActive = 0x041a (1050) Your LVDS_Info table is 1.2: 0006: acf0 Len 0036 Rev 01:02 (LVDS_Info) (struct size 0034) Which means it shouldn't (and doesn't) contain a usModePatchTableOffset. -- Ticket URL: <http://dev.haiku-os.org/ticket/8457#comment:27> Haiku <http://dev.haiku-os.org> Haiku - the operating system.