Chao_bee

Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: 4c 83 48 4c 00 00 00 00 17 17 version: 01 04 basic params: 85 18 0d 78 0a chroma info: 3a 75 a2 56 4d 9b 27 0e 50 54 established: 00 00 00 standard: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 descriptor 1: 52 35 80 80 70 38 1f 40 20 20 23 00 ef 86 00 00 00 1a descriptor 2: a8 2a 80 80 70 38 1f 40 20 20 23 00 ef 86 00 00 00 1a descriptor 3: 00 00 00 fe 00 46 56 30 30 44 80 31 30 38 48 4c 0a 20 descriptor 4: 00 00 00 00 00 03 41 15 28 01 00 00 00 0b 01 0a 20 20 extensions: 00 checksum: 94 Manufacturer: SDC Model 4c48 Serial Number 0 Made week 23 of 2013 EDID version: 1.4 Digital display Color depth is undefined DisplayPort interface Maximum image size: 24 cm x 13 cm Gamma: 2.20 Supported color formats: RGB 4:4:4, YCrCb 4:2:2 First detailed timing is preferred timing Chroma Info: Red X: 0.632812 Y: 0.338867 Green X: 0.302734 Y: 0.607422 Blue X: 0.153320 Y: 0.057617 White X: 0.313477 Y: 0.329102 Established timings supported: Standard timings supported: Detailed mode: Clock 136.500 MHz, 239 mm x 134 mm 1920 1952 1984 2048 hborder 0 1080 1082 1085 1111 vborder 0 +hsync -vsync Detailed mode: Clock 109.200 MHz, 239 mm x 134 mm 1920 1952 1984 2048 hborder 0 1080 1082 1085 1111 vborder 0 +hsync -vsync ASCII string: FV00D Manufacturer-specified data, tag 0 Checksum: 0x94 (valid) EDID block does NOT conform to EDID 1.3! Missing name descriptor Missing monitor ranges Detailed block string not properly terminated

Yes sir, I've tried to inject EDID by dsdt or even not, but both black screens. The only way to make the screen working so far, is injecting EDID through clover.

Yes sir, I think u r quite right. But for the moment, I cannot use any laptop Framebuffer to make the screen working. Shall I modify the AppleIntelFramebufferAzul.kext ? Thanks a lot and wish u a happy day!

Dear sir, if I just wanna turn my screen to be recognized as internal, (because it looks like an external one with AppleDisplay), what should I do then? It's very very appreciated for ur help. Thx & best wishes.

Dear sir, sorry for my uncleared description. I didn't change 0x0d220003 to 0x0a260006, I use everything vinilla now. The only working ig-platform-id is 0x0d220003. It's a desktop one. How to make the internal display to be recognized as Applebacklightdisplay instead of Appledisplay? Thanks in advance, sir. In the former post, I just want to tell u something I did a few days before. I changed the data under 0x0a260006, but not the layout id itself. I know it's wrong and meaningless. Just sorry for that.

Thanks for your help, sir. Best wishes. I did as you told me, and encountered a system reboot. I used -v to see what happened, everything seemed fine but when it should change to the white process bar, it didn't, the screen dimmed, then the system restarted. I think there must be something wrong with the frame buffer. I can use 0x0d220003 to enter the system, but no way to control backlight. At before, I modified Appleintelframebufferazul.kext, to use 0x0a260006. I just copied the data below 0x0d220003 to 0x0a260006. Of course it's meaningless. I tried to modify the port number, such as below, 03 00 22 0D 00 03 03 03 00 00 00 02 00 00 30 01 00 00 00 00 00 00 00 60 99 14 00 00 99 14 00 00 00 00 00 00 00 00 00 00 01 05 09 00 00 04 00 00 87 00 00 00 02 04 0A 00 00 04 00 00 It's the vanilla version. I changed 0D 22 00 03 to 0A 26 00 06. I tried to change 01 05 09 00 00 04 00 00 87 00 00 00, which means framebuffer1@port5, to framebuffer0@port0, 00 00 09 00 00 04 00 00 87 00 00 00, then the type of connector from DP to lvds (Mine is eDP), it looked like this then, 00 00 09 00 02 00 00 00 30 00 00 00. The screen got blank. It seemed to output on another port, because I could still hear the key stroking sound. I'm puzzled...

How to read information about connectors from a vgabios.dmp file? Thx

ioreg.zip It's not working, I've tried that already. Rehabman said that the internal screen must be recognized as Applebacklightdisplay instead of Appledisplay, in order to make backlight control method working. But I've tried several ways, nothing useful. I use ig-platform-id 0x0d220003, it's a desktop one, for only this one, my graphic card seems working right. I thought it might be an intel-framebuffer parameter's issue. I injected Appleinterlframebufferazul, replaced parameters under 0x0a260006 to make it working. Now I use 0x0a260006 instead. But there must be some error for the type of Appledisplay. I cannot change it.

Thank you sir, really appreciate for your help! Anything I can do for you, just let me know. Best wishes. CLOVER.zip orig_dsdt.zip

Yes already, but I think my dsdt is a little weird. They all have devices like DD01 DD02 under Device(GFX0), but I dont. I dont have them in any ssdts, either.DSDT_meng.zip Btw, which kext do I need to be modified? Thanks in advance, sir.

I have installed el capitan on my dell venue 11 pro recently, and the injected ig-platform-id is 0x0d220003, the gpu is HD4200 while the CPU is i5-4300y. The graphic card works fine, but I cant control the brightness level. So if there anyone can do me a favor, I'll be very very appreciated for that. The internal screen is recognized as Appledisplay, I know Applebacklightdisplay is right but don'n know how to change it. Any ideas? 0x0d220003 is a destop one, but others like 0x0a260006 are not working. I modified Appleintelfamebufferazul.kext, and copied the data under 220003 to 260006, then I injected ig-id with 0x0a260006, it became as same as 220003 with no backlight sliders. Thanks in advance.