francescophp Posted November 9, 2014 Share Posted November 9, 2014 Hi! I have just installed yosemite and i have white screen when i bootIt boots only with -xI Know that is a gpu problem, but i saw that my gpu may have work oob, why not?I have to modify framebuffer? I don't have a displayport so use hdmiAnyone know how i can do? Yosemite recognise my gpu as amd radeon 8xxx (1024mb) Link to comment Share on other sites More sharing options...
kvonlinee Posted November 9, 2014 Share Posted November 9, 2014 Try AtiConfig=Bonaire Link to comment Share on other sites More sharing options...
francescophp Posted November 10, 2014 Author Share Posted November 10, 2014 Try AtiConfig=BonaireI don't think that is this the problem but i'm going to try In baladi framebuffer there are only framebuffer for DisplayPort.. If i buy it (dp to hdmi) may could change something? I don't want spent 30 € uselessly Link to comment Share on other sites More sharing options...
kvonlinee Posted November 10, 2014 Share Posted November 10, 2014 It is hard to tell about adapter. I have 7950, tried few frame buffer, 1. HDMI, 1 DVI, and result some time just one monitor, some time no monitor but on share screen it show 2 monitor all the time. Until I got the working one it show both monitor connect to have picture. Link to comment Share on other sites More sharing options...
francescophp Posted November 10, 2014 Author Share Posted November 10, 2014 It is hard to tell about adapter. I have 7950, tried few frame buffer, 1. HDMI, 1 DVI, and result some time just one monitor, some time no monitor but on share screen it show 2 monitor all the time. Until I got the working one it show both monitor connect to have picture. If i edit frame buffer maybe can solve problem? Link to comment Share on other sites More sharing options...
kvonlinee Posted November 10, 2014 Share Posted November 10, 2014 If i edit frame buffer maybe can solve problem?I don't know much about edit the frame buffer, but I read they edit connector, some works. I try to edit the frame buffer, I got lost.So if you have time, give it a try. Link to comment Share on other sites More sharing options...
francescophp Posted November 10, 2014 Author Share Posted November 10, 2014 My gpu bios (Use 2 different bios decoder) ATOM BIOS Rom: SubsystemVendorID: 0x174b SubsystemID: 0xe253 IOBaseAddress: 0x0000 Filename: 253X03H0.S47 BIOS Bootup Message: C58203 Bonaire XT A1 GDDR5 1GB 64Mx32 300e/150m PCI ID: 1002:665c Connector at index 0 Type [@offset 43606]: DisplayPort (10) Encoder [@offset 43610]: INTERNAL_UNIPHY2 (0x21) i2cid [@offset 43716]: 0x90, OSX senseid: 0x1 Connector at index 1 Type [@offset 43616]: HDMI-A (11) Encoder [@offset 43620]: INTERNAL_UNIPHY2 (0x21) i2cid [@offset 43743]: 0x92, OSX senseid: 0x3 Connector at index 2 Type [@offset 43626]: DVI-D (3) Encoder [@offset 43630]: INTERNAL_UNIPHY1 (0x20) i2cid [@offset 43770]: 0x93, OSX senseid: 0x4 Connector at index 3 Type [@offset 43636]: DVI-I (2) Encoder [@offset 43640]: INTERNAL_UNIPHY (0x1e) i2cid [@offset 43807]: 0x95, OSX senseid: 0x6 Connector at index 4 Type [@offset 43646]: DVI-I (2) Encoder [@offset 43650]: INTERNAL_KLDSCP_DAC1 (0x15) i2cid [@offset 43807]: 0x95, OSX senseid: 0x6 —— C58203 Bonaire XT A1 GDDR5 1GB 64Mx32 300e/150m Subsystem Vendor ID: 174b Subsystem ID: e253 Object Header Structure Size: 355 Connector Object Table Offset: 48 Router Object Table Offset: 0 Encoder Object Table Offset: fd Display Path Table Offset: 12 Connector Object Id [19] which is [DISPLAY_PORT] encoder obj id [0x21] which is [INTERNAL_UNIPHY2 (osx txmit 0x12 [duallink 0x2] enc 0x4)] linkb: false Connector Object Id [12] which is [HDMI_TYPE_A] encoder obj id [0x21] which is [INTERNAL_UNIPHY2 (osx txmit 0x22 [duallink 0x2] enc 0x5)] linkb: true Connector Object Id [4] which is [DVI_D] encoder obj id [0x20] which is [INTERNAL_UNIPHY1 (osx txmit 0x11 [duallink 0x1] enc 0x2)] linkb: false Connector Object Id [2] which is [DVI_I] encoder obj id [0x1e] which is [INTERNAL_UNIPHY (osx txmit 0x10 [duallink 0x0] enc 0x0)] linkb: false Connector Object Id [2] which is [DVI_I] encoder obj id [0x15] which is [INTERNAL_KLDSCP_DAC1 (osx txmit 0x00 enc 0x10?)] linkb: false It boots only in safe mode Link to comment Share on other sites More sharing options...
francescophp Posted November 11, 2014 Author Share Posted November 11, 2014 My question is.. If i buy display port to hdmi converter.. For yosemite is the same as use a displayport to displayport? Ps: i tried use dsdt using rampagedev guide but when i boot i see black screen.. Link to comment Share on other sites More sharing options...
kvonlinee Posted November 11, 2014 Share Posted November 11, 2014 My question is.. If i buy display port to hdmi converter.. For yosemite is the same as use a displayport to displayport? Ps: i tried use dsdt using rampagedev guide but when i boot i see black screen.. Not sure. Link to comment Share on other sites More sharing options...
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