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Sony SZ770NC internal display not working. Clover EDID Injection hasn't helped

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mrmacdi

Guest
Hi!

My internal display in Sony SZ770NC laptop is not working, so I've extracted EDID in Windows and have tried Clover Legacy (v3773) InjectEDID, but no luck.
Clover GUI loads, I start Mavericks - internal display works: I see Apple logo on grey, native resolution, everything is fine, but when before welcome screen appears, macOS switches output to my external display.
10/13/16 01:00:10.159 WindowServer[101]: Found 78 modes for display 0x00000000 [78, 0]
10/13/16 01:00:10.196 WindowServer[101]: Display 0x003f003c: GL mask 0x1; bounds (0, 0)[0 x 0], 1 modes available
off-line, enabled, boot, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 0, Rotation 0 UUID 0xffffffffffffffffffffffffffffffff
10/13/16 01:00:10.200 WindowServer[101]: Display 0x003f003c: GL mask 0x1; bounds (2704, 0)[1 x 1], 1 modes available
off-line, enabled, boot, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 0, Rotation 0 UUID 0xffffffffffffffffffffffffffffffff
10/13/16 01:00:10.201 WindowServer[101]: Display 0x003f003c: Unit 0; Vendor 0xffffffff Model 0xffffffff S/N -1 Dimensions 0.00 x 0.00; offline enabled, Bounds (2704,0)[1 x 1], Rotation 0, Resolution 1

So it's not injected - vendor, model and s/n are not from my config.

When I put my laptop to sleep and wake it up - internal display switches on, I see backlight and some smooth vertical lines which then transform to just white colour...
10/14/16 00:59:59.407 WindowServer[97]: CGXDisplayDidWakeNotification [273248475042]: posting kCGSDisplayDidWake
10/14/16 00:59:59.874 WindowServer[97]: Received display connect changed for display 0x3f003c
10/14/16 00:59:59.877 WindowServer[97]: Found 24 modes for display 0x003f003c [24, 0]
10/14/16 00:59:59.934 WindowServer[97]: Display 0x1e844690: GL mask 0x1; bounds (1680, 0)[1280 x 800], 24 modes available Active, on-line, enabled, built-in, boot, Vendor 4e7a, Model 1111, S/N 499602d2, Unit 0, Rotation 0
UUID 0x0054dbea84064e61438b551f5009eaf6
10/14/16 01:00:00.438 WindowServer[97]: Display 0x1e844690: Unit 0: Startup Mode 1280 x 800, CGSThirtytwoBitColor, Resolution 1, ioModeID 0x80005000, ioModeDepth 0x2, IOReturn 0x0
10/14/16 01:00:00.440 WindowServer[97]: Display 0x1e844690: GL mask 0x1; bounds (1680, 0)[1280 x 800], 24 modes available Active, on-line, enabled, built-in, boot, Vendor 4e7a, Model 1111, S/N 499602d2, Unit 0, Rotation 0
UUID 0x0054dbea84064e61438b551f5009eaf6
10/14/16 01:00:01.965 WindowServer[97]: Display 0x1e844690: Unit 0; ColorProfile { 3, "SZ770NC"}

So, after spleep macOS identifies my internal display as I see in logs (my fake vendor, S/N, custom name) but it refuses to work :/

Details:
00 FF FF FF FF FF FF 00 3A C4 00 01 00 00 00 00 2D 0C 01 03 80 20 14 00 EA A8 E0 99 57 4B 92 25 1C 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 94 1B 00 AD 50 20 0A 30 40 40 42 00 42 C9 10 00 0A 30 40 40 42 00 42 C9 10 00 64 69 61 20 44 65 66 61 75 6C 00 00 00 FC 00 74 20 46 6C 61 74 20 50 61 6E 65 6C 00 00 00 00 FD 00 00 3D 1D 31 08 00 00 20 20 20 20 20 00 00 C8
00 FF FF FF FF FF FF 00 4E 7A 11 11 D2 02 96 49 2D 0C 01 03 80 20 14 00 EA A8 E0 99 57 4B 92 25 1C 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 94 1B 00 AD 50 20 0A 30 40 40 42 00 42 C9 10 00 0A 30 40 40 42 00 42 C9 10 00 64 69 61 20 44 65 66 61 75 6C 00 00 00 FC 00 53 5A 37 37 30 4E 43 0A 20 20 20 20 20 00 00 00 FD 00 00 3D 1D 31 08 00 00 20 20 20 20 20 00 00 F9
Code:
<key>Graphics</key>
    <dict>
        <key>EDID</key>
        <dict>
            <key>Custom</key>
            <data>
            AP///////wBOehER0gKWSS0MAQOAIBQA6qjgmVdLkiUcUFQAAAAB
            AQEBAQEBAQEBAQEBAQEBlBsArVAgCjBAQEIAQskQAAowQEBCAELJ
            EABkaWEgRGVmYXVsAAAA/ABTWjc3ME5DCiAgICAgAAAA/QAAPR0x
            CAAAICAgICAAAPk=
            </data>
            <key>Inject</key>
            < true/>
        </dict>
        <key>Inject</key>
        <dict>
            <key>ATI</key>
            <false/>
            <key>Intel</key>
            <false/>
            <key>NVidia</key>
            <true/>
        </dict>
        <key>NvidiaSingle</key>
        <false/>
    </dict>
Code:
                            Time:  12:00:08
                        Date:  Thu 13, 2016
______________________________________________________________________
______________________________________________________________________
                        VIEWSONIC CORPORATION
                    EDID Version # ,  Revision #
                            DDCTest For:
______________________________________________________________________
______________________________________________________________________
EDID Block 0, Bytes 0-127
128 BYTES OF EDID CODE:
         0   1   2   3   4   5   6   7   8   9
      ________________________________________
  0  |  00  FF  FF  FF  FF  FF  FF  00  3A  C4
10  |  00  01  00  00  00  00  2D  0C  01  03
20  |  80  20  14  00  EA  A8  E0  99  57  4B
30  |  92  25  1C  50  54  00  00  00  01  01
40  |  01  01  01  01  01  01  01  01  01  01
50  |  01  01  01  01  94  1B  00  AD  50  20
60  |  0A  30  40  40  42  00  42  C9  10  00
70  |  0A  30  40  40  42  00  42  C9  10  00
80  |  64  69  61  20  44  65  66  61  75  6C
90  |  00  00  00  FC  00  74  20  46  6C  61
100  |  74  20  50  61  6E  65  6C  00  00  00
110  |  00  FD  00  00  3D  1D  31  08  00  00
120  |  20  20  20  20  20  00  00  C8
______________________________________________________________________
(08-09)  ID Manufacturer Name ________________  =
(11-10)  Product ID Code _____________________  =
(12-15)  Last 5 Digits of Serial Number ______  =
(16)     Week of Manufacture _________________  =
(17)     Year of Manufacture _________________  =
(10-17)  Complete Serial Number ______________  =
(18)     EDID Version Number _________________  =
(19)     EDID Revision Number ________________  =
(20)     VIDEO INPUT DEFINITION:
          
(21)     Maximum Horizontal Image Size ________________    =
(22)     Maximum Vertical Image Size __________________    =
(23)     Display Gamma ________________________________    =
(24)     Power Management and Supported Feature(s):
 
         Display Type =
(25-34)  CHROMA INFO:
 
 
(35)     ESTABLISHED TIMING I:
(36)     ESTABLISHED TIMING II:
(37)     Manufacturer's Reserved Timing:
           None Specified
(38-53)  Standard Timing Identification:
Code:
                            Time:  12:22:48
                        Date:  Thu 13, 2016
______________________________________________________________________
______________________________________________________________________
                        VIEWSONIC CORPORATION
                    EDID Version # 1,  Revision # 3
                       DDCTest For: SSZ SZ770NC
______________________________________________________________________
______________________________________________________________________
EDID Block 0, Bytes 0-127
128 BYTES OF EDID CODE:
         0   1   2   3   4   5   6   7   8   9
      ________________________________________
  0  |  00  FF  FF  FF  FF  FF  FF  00  4E  7A
10  |  11  11  D2  02  96  49  2D  0C  01  03
20  |  80  20  14  00  EA  A8  E0  99  57  4B
30  |  92  25  1C  50  54  00  00  00  01  01
40  |  01  01  01  01  01  01  01  01  01  01
50  |  01  01  01  01  94  1B  00  AD  50  20
60  |  0A  30  40  40  42  00  42  C9  10  00
70  |  0A  30  40  40  42  00  42  C9  10  00
80  |  64  69  61  20  44  65  66  61  75  6C
90  |  00  00  00  FC  00  53  5A  37  37  30
100  |  4E  43  0A  20  20  20  20  20  00  00
110  |  00  FD  00  00  3D  1D  31  08  00  00
120  |  20  20  20  20  20  00  00  F9
______________________________________________________________________
(08-09)  ID Manufacturer Name ________________  = SSZ
(11-10)  Product ID Code _____________________  = 1111
(12-15)  Last 5 Digits of Serial Number ______  = 1234567890
(16)     Week of Manufacture _________________  = 45
(17)     Year of Manufacture _________________  = 2002
(10-17)  Complete Serial Number ______________  = 2451234567890
(18)     EDID Version Number _________________  = 1
(19)     EDID Revision Number ________________  = 3
(20)     VIDEO INPUT DEFINITION:
         Digital Signal
         Non - VESA DFP 1.x Compatible               
               
(21)     Maximum Horizontal Image Size ________________    =  320 mm
(22)     Maximum Vertical Image Size __________________    =  200 mm
(23)     Display Gamma ________________________________    =  1,00
(24)     Power Management and Supported Feature(s):
         Stand-By, Suspend, Active Off/Very Low Power,
         Preferred Timing Mode
         Display Type = R/G/B Color
(25-34)  CHROMA INFO:
         Red X - 0,600 Green X - 0,295 Blue X - 0,147 White X - 0,313
         Red Y - 0,342 Green Y - 0,570 Blue Y - 0,111 White Y - 0,328
(35)     ESTABLISHED TIMING I:
(36)     ESTABLISHED TIMING II:
(37)     Manufacturer's Reserved Timing:
           None Specified
(38-53)  Standard Timing Identification:
         Not Used
         Not Used
         Not Used
         Not Used
         Not Used
         Not Used
         Not Used
         Not Used
______________________________________________________________________
(54-71) Detailed Timing / Descriptor Block 1:
                   1280x800  Pixel Clock: 70,60 MHz
______________________________________________________________________
         Horizontal Image Size: 322 mm     Vertical Image Size: 201 mm
         Refreshed Mode: Non-Interlaced    Stereo

Horizontal:
         Active Time: 1280 pixels          Blanking Time: 173 pixels
         Sync Offset: 64 pixels            Sync Pulse Width: 64 pixels
         Border: 0 pixels                  Frequency: 48,59 KHz

Vertical:
         Active Time: 800 lines            Blanking Time: 10 lines
         Sync Offset: 4 lines              Sync Pulse Width: 2 lines
         Border: 10 lines                  Frequency: 59,99 Hz

Digital Composite Composite Polarity (-)


______________________________________________________________________
(72-89) Detailed Timing / Descriptor Block 2:
                  1090x201  Pixel Clock: 164,48 MHz
______________________________________________________________________
         Horizontal Image Size: 1604 mm    Vertical Image Size: 1637 mm
         Refreshed Mode: Non-Interlaced    Stereo

Horizontal:
         Active Time: 1090 pixels          Blanking Time: 512 pixels
         Sync Offset: 100 pixels           Sync Pulse Width: 617 pixels
         Border: 97 pixels                 Frequency: 102,67 KHz

Vertical:
         Active Time: 201 lines            Blanking Time: 16 lines
         Sync Offset: 6 lines              Sync Pulse Width: 1 lines
         Border: 117 lines                 Frequency: 473,14 Hz

Bipolar Analog Composite (Serrate) Sync On Green


______________________________________________________________________
(90-107) Detailed Timing / Descriptor Block 3:

         Monitor Name:
         SZ770NC


______________________________________________________________________
(108-125) Detailed Timing / Descriptor Block 4:

         Monitor Range Limits:
         Min Vertical Freq - 0 Hz
         Max Vertical Freq - 61 Hz
         Min Horiz. Freq - 29 KHz
         Max Horiz. Freq - 49 KHz
         Pixel Clock  - 80 MHz
         Secondary GTF - Not Supported

(126)    No Extension EDID Block(s)
(127)    CheckSum OK
Checksums are OK, tried to inject via Clover both variants: raw from windows and with some cosmetic changes - doesn't matter still nothing.

Any ideas where to dig and how to fix?
 
Last edited:
Hi!

My internal display in Sony SZ770NC laptop is not working, so I've extracted EDID in Windows and have tried Clover (v3773) InjectEDID, but no luck.
Clover GUI loads, I start Mavericks - internal display works: I see Apple logo on grey, native resolution, everything is fine, but when before welcome screen appears, macOS switches output to my external display.
10/13/16 01:00:10.159 WindowServer[101]: Found 78 modes for display 0x00000000 [78, 0]
10/13/16 01:00:10.196 WindowServer[101]: Display 0x003f003c: GL mask 0x1; bounds (0, 0)[0 x 0], 1 modes available
off-line, enabled, boot, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 0, Rotation 0 UUID 0xffffffffffffffffffffffffffffffff
10/13/16 01:00:10.200 WindowServer[101]: Display 0x003f003c: GL mask 0x1; bounds (2704, 0)[1 x 1], 1 modes available
off-line, enabled, boot, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 0, Rotation 0 UUID 0xffffffffffffffffffffffffffffffff
10/13/16 01:00:10.201 WindowServer[101]: Display 0x003f003c: Unit 0; Vendor 0xffffffff Model 0xffffffff S/N -1 Dimensions 0.00 x 0.00; offline enabled, Bounds (2704,0)[1 x 1], Rotation 0, Resolution 1

So it's not injected - vendor, model and s/n are not from my config.

When I put my laptop to sleep and wake it up - internal display switches on, I see backlight and some smooth vertical lines which then transform to just white colour...
10/14/16 00:59:59.407 WindowServer[97]: CGXDisplayDidWakeNotification [273248475042]: posting kCGSDisplayDidWake
10/14/16 00:59:59.874 WindowServer[97]: Received display connect changed for display 0x3f003c
10/14/16 00:59:59.877 WindowServer[97]: Found 24 modes for display 0x003f003c [24, 0]
10/14/16 00:59:59.934 WindowServer[97]: Display 0x1e844690: GL mask 0x1; bounds (1680, 0)[1280 x 800], 24 modes available Active, on-line, enabled, built-in, boot, Vendor 4e7a, Model 1111, S/N 499602d2, Unit 0, Rotation 0
UUID 0x0054dbea84064e61438b551f5009eaf6
10/14/16 01:00:00.438 WindowServer[97]: Display 0x1e844690: Unit 0: Startup Mode 1280 x 800, CGSThirtytwoBitColor, Resolution 1, ioModeID 0x80005000, ioModeDepth 0x2, IOReturn 0x0
10/14/16 01:00:00.440 WindowServer[97]: Display 0x1e844690: GL mask 0x1; bounds (1680, 0)[1280 x 800], 24 modes available Active, on-line, enabled, built-in, boot, Vendor 4e7a, Model 1111, S/N 499602d2, Unit 0, Rotation 0
UUID 0x0054dbea84064e61438b551f5009eaf6
10/14/16 01:00:01.965 WindowServer[97]: Display 0x1e844690: Unit 0; ColorProfile { 3, "SZ770NC"}

So, after spleep macOS identifies my internal display as I see in logs (my fake vendor, S/N, custom name) but it refuses to work :/

Details:
00 FF FF FF FF FF FF 00 3A C4 00 01 00 00 00 00 2D 0C 01 03 80 20 14 00 EA A8 E0 99 57 4B 92 25 1C 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 94 1B 00 AD 50 20 0A 30 40 40 42 00 42 C9 10 00 0A 30 40 40 42 00 42 C9 10 00 64 69 61 20 44 65 66 61 75 6C 00 00 00 FC 00 74 20 46 6C 61 74 20 50 61 6E 65 6C 00 00 00 00 FD 00 00 3D 1D 31 08 00 00 20 20 20 20 20 00 00 C8
00 FF FF FF FF FF FF 00 4E 7A 11 11 D2 02 96 49 2D 0C 01 03 80 20 14 00 EA A8 E0 99 57 4B 92 25 1C 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 94 1B 00 AD 50 20 0A 30 40 40 42 00 42 C9 10 00 0A 30 40 40 42 00 42 C9 10 00 64 69 61 20 44 65 66 61 75 6C 00 00 00 FC 00 53 5A 37 37 30 4E 43 0A 20 20 20 20 20 00 00 00 FD 00 00 3D 1D 31 08 00 00 20 20 20 20 20 00 00 F9
Code:
<key>Graphics</key>
    <dict>
        <key>EDID</key>
        <dict>
            <key>Custom</key>
            <data>
            AP///////wBOehER0gKWSS0MAQOAIBQA6qjgmVdLkiUcUFQAAAAB
            AQEBAQEBAQEBAQEBAQEBlBsArVAgCjBAQEIAQskQAAowQEBCAELJ
            EABkaWEgRGVmYXVsAAAA/ABTWjc3ME5DCiAgICAgAAAA/QAAPR0x
            CAAAICAgICAAAPk=
            </data>
            <key>Inject</key>
            < true/>
        </dict>
        <key>Inject</key>
        <dict>
            <key>ATI</key>
            <false/>
            <key>Intel</key>
            <false/>
            <key>NVidia</key>
            <true/>
        </dict>
        <key>NvidiaSingle</key>
        <false/>
    </dict>
Code:
                            Time:  12:00:08
                        Date:  Thu 13, 2016
______________________________________________________________________
______________________________________________________________________
                        VIEWSONIC CORPORATION
                    EDID Version # ,  Revision #
                            DDCTest For:
______________________________________________________________________
______________________________________________________________________
EDID Block 0, Bytes 0-127
128 BYTES OF EDID CODE:
         0   1   2   3   4   5   6   7   8   9
      ________________________________________
  0  |  00  FF  FF  FF  FF  FF  FF  00  3A  C4
10  |  00  01  00  00  00  00  2D  0C  01  03
20  |  80  20  14  00  EA  A8  E0  99  57  4B
30  |  92  25  1C  50  54  00  00  00  01  01
40  |  01  01  01  01  01  01  01  01  01  01
50  |  01  01  01  01  94  1B  00  AD  50  20
60  |  0A  30  40  40  42  00  42  C9  10  00
70  |  0A  30  40  40  42  00  42  C9  10  00
80  |  64  69  61  20  44  65  66  61  75  6C
90  |  00  00  00  FC  00  74  20  46  6C  61
100  |  74  20  50  61  6E  65  6C  00  00  00
110  |  00  FD  00  00  3D  1D  31  08  00  00
120  |  20  20  20  20  20  00  00  C8
______________________________________________________________________
(08-09)  ID Manufacturer Name ________________  =
(11-10)  Product ID Code _____________________  =
(12-15)  Last 5 Digits of Serial Number ______  =
(16)     Week of Manufacture _________________  =
(17)     Year of Manufacture _________________  =
(10-17)  Complete Serial Number ______________  =
(18)     EDID Version Number _________________  =
(19)     EDID Revision Number ________________  =
(20)     VIDEO INPUT DEFINITION:
          
(21)     Maximum Horizontal Image Size ________________    =
(22)     Maximum Vertical Image Size __________________    =
(23)     Display Gamma ________________________________    =
(24)     Power Management and Supported Feature(s):
 
         Display Type =
(25-34)  CHROMA INFO:
 
 
(35)     ESTABLISHED TIMING I:
(36)     ESTABLISHED TIMING II:
(37)     Manufacturer's Reserved Timing:
           None Specified
(38-53)  Standard Timing Identification:
Code:
                            Time:  12:22:48
                        Date:  Thu 13, 2016
______________________________________________________________________
______________________________________________________________________
                        VIEWSONIC CORPORATION
                    EDID Version # 1,  Revision # 3
                       DDCTest For: SSZ SZ770NC
______________________________________________________________________
______________________________________________________________________
EDID Block 0, Bytes 0-127
128 BYTES OF EDID CODE:
         0   1   2   3   4   5   6   7   8   9
      ________________________________________
  0  |  00  FF  FF  FF  FF  FF  FF  00  4E  7A
10  |  11  11  D2  02  96  49  2D  0C  01  03
20  |  80  20  14  00  EA  A8  E0  99  57  4B
30  |  92  25  1C  50  54  00  00  00  01  01
40  |  01  01  01  01  01  01  01  01  01  01
50  |  01  01  01  01  94  1B  00  AD  50  20
60  |  0A  30  40  40  42  00  42  C9  10  00
70  |  0A  30  40  40  42  00  42  C9  10  00
80  |  64  69  61  20  44  65  66  61  75  6C
90  |  00  00  00  FC  00  53  5A  37  37  30
100  |  4E  43  0A  20  20  20  20  20  00  00
110  |  00  FD  00  00  3D  1D  31  08  00  00
120  |  20  20  20  20  20  00  00  F9
______________________________________________________________________
(08-09)  ID Manufacturer Name ________________  = SSZ
(11-10)  Product ID Code _____________________  = 1111
(12-15)  Last 5 Digits of Serial Number ______  = 1234567890
(16)     Week of Manufacture _________________  = 45
(17)     Year of Manufacture _________________  = 2002
(10-17)  Complete Serial Number ______________  = 2451234567890
(18)     EDID Version Number _________________  = 1
(19)     EDID Revision Number ________________  = 3
(20)     VIDEO INPUT DEFINITION:
         Digital Signal
         Non - VESA DFP 1.x Compatible               
               
(21)     Maximum Horizontal Image Size ________________    =  320 mm
(22)     Maximum Vertical Image Size __________________    =  200 mm
(23)     Display Gamma ________________________________    =  1,00
(24)     Power Management and Supported Feature(s):
         Stand-By, Suspend, Active Off/Very Low Power,
         Preferred Timing Mode
         Display Type = R/G/B Color
(25-34)  CHROMA INFO:
         Red X - 0,600 Green X - 0,295 Blue X - 0,147 White X - 0,313
         Red Y - 0,342 Green Y - 0,570 Blue Y - 0,111 White Y - 0,328
(35)     ESTABLISHED TIMING I:
(36)     ESTABLISHED TIMING II:
(37)     Manufacturer's Reserved Timing:
           None Specified
(38-53)  Standard Timing Identification:
         Not Used
         Not Used
         Not Used
         Not Used
         Not Used
         Not Used
         Not Used
         Not Used
______________________________________________________________________
(54-71) Detailed Timing / Descriptor Block 1:
                   1280x800  Pixel Clock: 70,60 MHz
______________________________________________________________________
         Horizontal Image Size: 322 mm     Vertical Image Size: 201 mm
         Refreshed Mode: Non-Interlaced    Stereo

Horizontal:
         Active Time: 1280 pixels          Blanking Time: 173 pixels
         Sync Offset: 64 pixels            Sync Pulse Width: 64 pixels
         Border: 0 pixels                  Frequency: 48,59 KHz

Vertical:
         Active Time: 800 lines            Blanking Time: 10 lines
         Sync Offset: 4 lines              Sync Pulse Width: 2 lines
         Border: 10 lines                  Frequency: 59,99 Hz

Digital Composite Composite Polarity (-)


______________________________________________________________________
(72-89) Detailed Timing / Descriptor Block 2:
                  1090x201  Pixel Clock: 164,48 MHz
______________________________________________________________________
         Horizontal Image Size: 1604 mm    Vertical Image Size: 1637 mm
         Refreshed Mode: Non-Interlaced    Stereo

Horizontal:
         Active Time: 1090 pixels          Blanking Time: 512 pixels
         Sync Offset: 100 pixels           Sync Pulse Width: 617 pixels
         Border: 97 pixels                 Frequency: 102,67 KHz

Vertical:
         Active Time: 201 lines            Blanking Time: 16 lines
         Sync Offset: 6 lines              Sync Pulse Width: 1 lines
         Border: 117 lines                 Frequency: 473,14 Hz

Bipolar Analog Composite (Serrate) Sync On Green


______________________________________________________________________
(90-107) Detailed Timing / Descriptor Block 3:

         Monitor Name:
         SZ770NC


______________________________________________________________________
(108-125) Detailed Timing / Descriptor Block 4:

         Monitor Range Limits:
         Min Vertical Freq - 0 Hz
         Max Vertical Freq - 61 Hz
         Min Horiz. Freq - 29 KHz
         Max Horiz. Freq - 49 KHz
         Pixel Clock  - 80 MHz
         Secondary GTF - Not Supported

(126)    No Extension EDID Block(s)
(127)    CheckSum OK
Checksums are OK, tried to inject via Clover both variants: raw from windows and with some cosmetic changes - doesn't matter still nothing.

Any ideas where to dig and how to fix?

Please provide complete details in your profile/signature
(Profile/Settings link in upper right corner of this site)

Mobo: manufacturer/model + bootloader(Clover/Chameleon/Chimera)
CPU: detailed CPU model + motherboard chipset
Graphics: all graphics devices + laptop internal screen resolution

For example, typical Ivy laptop:
Mobo: HP ProBook 4540s (Clover)
CPU: i5-3320m/HM76
Graphics: HD4000, 1366x768

Use CPU-Z on Windows to find CPU (Core iX-xxx) and motherboard chipset (HMxx), and graphics capabilities. For a laptop, these details are important and affect critical installation procedures.

Note: When specifying your bootloader, if using Clover legacy, please be sure to specify "Clover legacy"). Specifying "Clover" will be assumed as "Clover UEFI"
 
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