Re: gma500: monitor-dependent failure to boot FB console (psbdrmfb)

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On Sat, 1 Aug 2020, Thierry Moreau wrote:

> [either a call for help or troubleshooting information useful to fix an
> outstanding issue in the GMA500 DRIVER?]
>
> This GMA3650-GPU-based system with a self-supported Linux distribution boots
> OK in all cases (ssh access fine when no console).
>
> With the HAI monitor (actually a 7 inches monitor marketed for the cinema
> industry, the edid information reporting a wrong display size), the frame
> buffer console is fine, i.e. from the boot log:
>
> [    1.506269] fbcon: psbdrmfb (fb0) is primary device
>
> Accordingly, there are two entries in the /sys/class/vtconsole/
> directory,names "(S) dummy device" and "(M) frame buffer device".
>
> With two ASUS monitors, the above line in the boot log never appears. And
> theconsole turns blank early in the boot process. A single entry appears in
> /sys/class/vtconsole/, i.e. vtcon0/name -> "(S) VGA+".
>
> In either case Xorg starts fine and switching between ctrl-alt-f7 and
> ctrl-alt-f1..6 (either console for HAI or blank for ASUS) works fine.
>
> Looking in the kernel source tree, 'psbdrmfb' is a frame buffer name appearing
> once in the GMA500 GPU source code.
>
> This what I found in my patient troubleshooting.
>
> See below:
>
> - two boot log excerpts (grep'ing gcc\|drm\|gma5\|console\|fbcon\|D2550 -C 2)
> for
> the 'pass' and 'fail' boot sequences; and
>
> - three edid reports for the (pass) HAI monitor and two (fail) ASUS monitors.
>
> Maybe this post should be sent to another mailing list.

The MAINTAINERS file or the get_maintainer.pl script should be able to
help you get to the right people.

julia


>
> Thanks in advance, and best regards to kernel enthusiasts!
>
> - Thierry Moreau
>
> ============================ boot sequence, 'pass'
> pass:[    0.000000] Linux version 4.19.48 (root@dodeca1er) (gcc version 8.4.0
> (CRUX-x86_64-multilib)) #5 SMP Fri Jul 31 03:17:03 UTC 2020
> pass-[    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-05 root=/dev/sda1
> ro
> pass-[    0.000000] Disabled fast string operations
> --
> pass-[    0.582174] spurious 8259A interrupt: IRQ7.
> pass-[    0.584782] Console: colour VGA+ 80x25
> pass:[    0.595503] console [tty0] enabled
> pass-[    0.595635] ACPI: Core revision 20180810
> pass-[    0.596080] clocksource: hpet: mask: 0xffffffff max_cycles:
> 0xffffffff, max_idle_ns: 133484882848 ns
> --
> pass-[    0.858339] sched_clock: Marking stable (843780572,
> 14317326)->(964648975, -106551077)
> pass-[    0.858737] Loading compiled-in X.509 certificates
> pass:[    0.859638] gma500 0000:00:02.0: GPU: power management timed out.
> pass-[    0.880497] ACPI: Video Device [GFX0] (multi-head: yes  rom: no post:
> no)
> pass-[    0.881183] acpi device:27: registered as cooling_device5
> pass-[    0.881423] input: Video Bus as
> /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input3
> pass:[    0.881699] [drm] Supports vblank timestamp caching Rev 2
> (21.10.2013).
> pass:[    0.881817] [drm] No driver support for vblank timestamp query.
> pass-[    0.885525] hdaudio hdaudioC0D0: Unable to bind the codec
> pass-[    0.889340] snd_hda_codec_hdmi hdaudioC0D1: HDMI: Unknown ELD version
> 1
> --
> pass-[    1.361611]  sda: sda1 sda2 sda3 sda4 sda5 sda6 sda7 sda8 sda9 sda10
> sda11
> pass-[    1.362977] sd 0:0:0:0: [sda] Attached SCSI disk
> pass:[    1.506269] fbcon: psbdrmfb (fb0) is primary device
> pass-[    1.599775] ata2: SATA link down (SStatus 0 SControl 300)
> pass-[    1.640569] snd_hda_codec_hdmi hdaudioC0D1: HDMI: Unknown ELD version
> 1
> --
> pass-[    2.279237] snd_hda_codec_hdmi hdaudioC0D1: HDMI: Unknown ELD version
> 1
> pass-[    2.342558] Console: switching to colour frame buffer device 128x45
> pass:[    2.352243] gma500 0000:00:02.0: fb0: psbdrmfb frame buffer device
> pass:[    2.352451] [drm] Initialized gma500 1.0.0 20140314 for 0000:00:02.0
> on minor 0
> pass:[    2.352666] console [netcon0] enabled
> pass:[    2.352730] netconsole: network logging started
> pass-[    2.354784] cfg80211: Loading compiled-in X.509 certificates for
> regulatory database
> pass-[    2.357110] kworker/u8:3 (98) used greatest stack depth: 14760 bytes
> left
> ============================ boot sequence, 'fail'
> fail:[    0.000000] Linux version 4.19.48 (root@dodeca1er) (gcc version 8.4.0
> (CRUX-x86_64-multilib)) #5 SMP Fri Jul 31 03:17:03 UTC 2020
> fail-[    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-05 root=/dev/sda1
> ro
> fail-[    0.000000] Disabled fast string operations
> --
> fail-[    0.581688] spurious 8259A interrupt: IRQ7.
> fail-[    0.584292] Console: colour VGA+ 80x25
> fail:[    0.595033] console [tty0] enabled
> fail-[    0.595165] ACPI: Core revision 20180810
> fail-[    0.595608] clocksource: hpet: mask: 0xffffffff max_cycles:
> 0xffffffff, max_idle_ns: 133484882848 ns
> --
> fail-[    0.857783] sched_clock: Marking stable (843222107,
> 14331799)->(964122675, -106568769)
> fail-[    0.858180] Loading compiled-in X.509 certificates
> fail:[    0.859077] gma500 0000:00:02.0: GPU: power management timed out.
> fail-[    0.879977] ACPI: Video Device [GFX0] (multi-head: yes  rom: no post:
> no)
> fail-[    0.880671] acpi device:27: registered as cooling_device5
> fail-[    0.880917] input: Video Bus as
> /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input3
> fail:[    0.881204] [drm] Supports vblank timestamp caching Rev 2
> (21.10.2013).
> fail:[    0.881322] [drm] No driver support for vblank timestamp query.
> fail-[    0.885009] hdaudio hdaudioC0D0: Unable to bind the codec
> fail-[    0.888879] snd_hda_codec_hdmi hdaudioC0D1: HDMI: Unknown ELD version
> 1
> --
> fail-[    1.361075]  sda: sda1 sda2 sda3 sda4 sda5 sda6 sda7 sda8 sda9 sda10
> sda11
> fail-[    1.362448] sd 0:0:0:0: [sda] Attached SCSI disk
> fail:[    1.504605] [drm] Initialized gma500 1.0.0 20140314 for 0000:00:02.0
> on minor 0
> fail:[    1.504958] console [netcon0] enabled
> fail:[    1.505074] netconsole: network logging started
> fail-[    1.505320] cfg80211: Loading compiled-in X.509 certificates for
> regulatory database
> fail-[    1.505626] kworker/u8:4 (97) used greatest stack depth: 14760 bytes
> left
> ============================ edid report, 'pass' monitor (HAI)
> edid-decode (hex):
>
> 00 ff ff ff ff ff ff 00 20 29 54 4c 01 00 00 00
> 01 19 01 03 81 46 27 78 8a a5 8e a6 54 4a 9c 26
> 12 45 46 ad ce 00 81 40 01 01 01 01 01 01 01 01
> 01 01 01 01 01 01 01 1d 00 72 51 d0 1e 20 6e 28
> 55 00 b9 88 21 00 00 1e 9a 29 a0 d0 51 84 22 30
> 50 98 36 00 b9 88 21 00 00 1c 00 00 00 fd 00 32
> 4b 18 3c 0b 00 0a 20 20 20 20 20 20 00 00 00 fc
> 00 37 35 39 0a 20 20 20 20 20 20 20 20 20 01 2f
>
> 02 03 21 71 4e 06 07 02 03 15 96 11 12 13 04 14
> 05 1f 90 23 09 07 07 83 01 00 00 65 03 0c 00 10
> 00 8c 0a d0 90 20 40 31 20 0c 40 55 00 b9 88 21
> 00 00 18 01 1d 80 18 71 1c 16 20 58 2c 25 00 b9
> 88 21 00 00 9e 01 1d 80 d0 72 1c 16 20 10 2c 25
> 80 b9 88 21 00 00 9e 01 1d 00 bc 52 d0 1e 20 b8
> 28 55 40 b9 88 21 00 00 1e 02 3a 80 d0 72 38 2d
> 40 10 2c 45 80 b9 88 21 00 00 1e 00 00 00 00 d0
>
> ----------------
>
> Block 0, Base EDID:
>   EDID Structure Version & Revision: 1.3
>   Vendor & Product Identification:
>     Manufacturer: HAI
>     Model: 19540
>     Serial Number: 1
>     Made in: week 1 of 2015
>   Basic Display Parameters & Features:
>     Digital display
>     DFP 1.x compatible TMDS
>     Maximum image size: 70 cm x 39 cm
>     Gamma: 2.20
>     DPMS levels: Standby
>     RGB color display
>     First detailed timing is the preferred timing
>   Color Characteristics:
>     Red  : 0.6503, 0.3300
>     Green: 0.2900, 0.6103
>     Blue : 0.1503, 0.0703
>     White: 0.2724, 0.2753
>   Established Timings I & II:
>     IBM     :   720x400    70.082 Hz   9:5    31.467 kHz  28.320 MHz
>     DMT 0x04:   640x480    59.940 Hz   4:3    31.469 kHz  25.175 MHz
>     DMT 0x05:   640x480    72.809 Hz   4:3    37.861 kHz  31.500 MHz
>     DMT 0x06:   640x480    75.000 Hz   4:3    37.500 kHz  31.500 MHz
>     DMT 0x09:   800x600    60.317 Hz   4:3    37.879 kHz  40.000 MHz
>     DMT 0x0a:   800x600    72.188 Hz   4:3    48.077 kHz  50.000 MHz
>     DMT 0x0b:   800x600    75.000 Hz   4:3    46.875 kHz  49.500 MHz
>     DMT 0x10:  1024x768    60.004 Hz   4:3    48.363 kHz  65.000 MHz
>     DMT 0x11:  1024x768    70.069 Hz   4:3    56.476 kHz  75.000 MHz
>     DMT 0x12:  1024x768    75.029 Hz   4:3    60.023 kHz  78.750 MHz
>   Standard Timings:
>     DMT 0x20:  1280x960    60.000 Hz   4:3    60.000 kHz 108.000 MHz
>   Detailed Timing Descriptors:
>     DTD 1:  1280x720    60.000 Hz  16:9    45.000 kHz  74.250 MHz (697 mm x
> 392 mm)
>                  Hfront  110 Hsync  40 Hback 220 Hpol P
>                  Vfront    5 Vsync   5 Vback  20 Vpol P
>     DTD 2:  1440x900    59.887 Hz   8:5    55.935 kHz 106.500 MHz (697 mm x
> 392 mm)
>                  Hfront   80 Hsync 152 Hback 232 Hpol N
>                  Vfront    3 Vsync   6 Vback  25 Vpol P
>   Display Range Limits:
>     Monitor ranges (GTF): 50-75 Hz V, 24-60 kHz H, max dotclock 110 MHz
>     Display Product Name: '759'
>   Extension blocks: 1
> Checksum: 0x2f
>
> ----------------
>
> Block 1, CTA-861 Extension Block:
>   Revision: 3
>   Basic audio support
>   Supports YCbCr 4:4:4
>   Supports YCbCr 4:2:2
>   Native detailed modes: 1
>   Video Data Block:
>     VIC   6:  1440x480i   59.940 Hz   4:3    15.734 kHz  27.000 MHz
>     VIC   7:  1440x480i   59.940 Hz  16:9    15.734 kHz  27.000 MHz
>     VIC   2:   720x480    59.940 Hz   4:3    31.469 kHz  27.000 MHz
>     VIC   3:   720x480    59.940 Hz  16:9    31.469 kHz  27.000 MHz
>     VIC  21:  1440x576i   50.000 Hz   4:3    15.625 kHz  27.000 MHz
>     VIC  22:  1440x576i   50.000 Hz  16:9    15.625 kHz  27.000 MHz (native)
>     VIC  17:   720x576    50.000 Hz   4:3    31.250 kHz  27.000 MHz
>     VIC  18:   720x576    50.000 Hz  16:9    31.250 kHz  27.000 MHz
>     VIC  19:  1280x720    50.000 Hz  16:9    37.500 kHz  74.250 MHz
>     VIC   4:  1280x720    60.000 Hz  16:9    45.000 kHz  74.250 MHz
>     VIC  20:  1920x1080i  50.000 Hz  16:9    28.125 kHz  74.250 MHz
>     VIC   5:  1920x1080i  60.000 Hz  16:9    33.750 kHz  74.250 MHz
>     VIC  31:  1920x1080   50.000 Hz  16:9    56.250 kHz 148.500 MHz
>     VIC  16:  1920x1080   60.000 Hz  16:9    67.500 kHz 148.500 MHz (native)
>   Audio Data Block:
>     Linear PCM:
>       Max channels: 2
>       Supported sample rates (kHz): 48 44.1 32
>       Supported sample sizes (bits): 24 20 16
>   Speaker Allocation Data Block:
>     FL/FR - Front Left/Right
>   Vendor-Specific Data Block (HDMI), OUI 00-0C-03:
>     Source physical address: 1.0.0.0
>   Detailed Timing Descriptors:
>     DTD 3:   720x576    50.000 Hz   5:4    31.250 kHz  27.000 MHz (697 mm x
> 392 mm)
>                  Hfront   12 Hsync  64 Hback  68 Hpol N
>                  Vfront    5 Vsync   5 Vback  39 Vpol N
>     DTD 4:  1920x1080i  60.000 Hz  16:9    33.750 kHz  74.250 MHz (697 mm x
> 392 mm)
>                  Hfront   88 Hsync  44 Hback 148 Hpol P
>                  Vfront    2 Vsync   5 Vback  15 Vpol P Vfront +0.5 Odd Field
>                  Vfront    2 Vsync   5 Vback  15 Vpol P Vback  +0.5 Even Field
>     DTD 5:  1920x1080i  50.000 Hz  16:9    28.125 kHz  74.250 MHz (697 mm x
> 392 mm)
>                  Hfront  528 Hsync  44 Hback 148 Hpol P
>                  Vfront    2 Vsync   5 Vback  15 Vpol P Vfront +0.5 Odd Field
>                  Vfront    2 Vsync   5 Vback  15 Vpol P Vback  +0.5 Even Field
>     DTD 6:  1280x720    50.000 Hz  16:9    37.500 kHz  74.250 MHz (697 mm x
> 392 mm)
>                  Hfront  440 Hsync  40 Hback 220 Hpol P
>                  Vfront    5 Vsync   5 Vback  20 Vpol P
>     DTD 7:  1920x1080   50.000 Hz  16:9    56.250 kHz 148.500 MHz (697 mm x
> 392 mm)
>                  Hfront  528 Hsync  44 Hback 148 Hpol P
>                  Vfront    4 Vsync   5 Vback  36 Vpol P
> Checksum: 0xd0
>
> ----------------
>
> edid-decode SHA: 56dd103a0c20724ee956950f5bcb8cc1c8667af9
>
> Warnings:
>
> Block 1, CTA-861 Extension Block:
>   Missing VCDB, needed for Set Selectable RGB Quantization to avoid interop
> issues.
>
> Failures:
>
> EDID:
>   Base EDID: Some timings are out of range of the Monitor Ranges:
>     Horizontal Freq: 15.625 - 67.500 kHz (Monitor: 24.000 - 60.000 kHz)
>     Maximum Clock: 148.500 MHz (Monitor: 110.000 MHz)
>   CTA-861: Native progressive timings are a mix of several resolutions.
>
> EDID conformity: FAIL
> ============================ edid report, 'fail' monitor 1/2 (ASUS VE248)
> edid-decode (hex):
>
> 00 ff ff ff ff ff ff 00 04 69 94 24 01 01 01 01
> 13 1e 01 03 80 35 1e 78 ea 92 65 a6 55 55 9f 28
> 0d 50 54 bf ef 00 71 4f 81 80 81 40 95 00 a9 40
> b3 00 d1 c0 01 01 02 3a 80 18 71 38 2d 40 58 2c
> 45 00 13 2b 21 00 00 1e 00 00 00 fd 00 32 4c 1e
> 53 11 00 0a 20 20 20 20 20 20 00 00 00 fc 00 56
> 45 32 34 38 0a 20 20 20 20 20 20 20 00 00 00 ff
> 00 4c 35 4c 4d 51 53 30 34 36 38 31 36 0a 01 a9
>
> 02 03 1e f1 4b 90 05 04 03 02 01 11 12 13 14 1f
> 23 09 07 07 83 01 00 00 65 03 0c 00 10 00 1a 36
> 80 a0 70 38 1e 40 30 20 35 00 13 2b 21 00 00 1a
> 66 21 56 aa 51 00 1e 30 46 8f 33 00 13 2b 21 00
> 00 1e 01 1d 00 72 51 d0 1e 20 6e 28 55 00 13 2b
> 21 00 00 1e 8c 0a d0 8a 20 e0 2d 10 10 3e 96 00
> 13 2b 21 00 00 18 01 1d 80 18 71 1c 16 20 58 2c
> 25 00 13 2b 21 00 00 9f 00 00 00 00 00 00 00 39
>
> ----------------
>
> Block 0, Base EDID:
>   EDID Structure Version & Revision: 1.3
>   Vendor & Product Identification:
>     Manufacturer: ACI
>     Model: 9364
>     Serial Number: 16843009
>     Made in: week 19 of 2020
>   Basic Display Parameters & Features:
>     Digital display
>     Maximum image size: 53 cm x 30 cm
>     Gamma: 2.20
>     DPMS levels: Standby Suspend Off
>     RGB color display
>     First detailed timing is the preferred timing
>   Color Characteristics:
>     Red  : 0.6503, 0.3330
>     Green: 0.3320, 0.6230
>     Blue : 0.1572, 0.0527
>     White: 0.3134, 0.3291
>   Established Timings I & II:
>     IBM     :   720x400    70.082 Hz   9:5    31.467 kHz  28.320 MHz
>     DMT 0x04:   640x480    59.940 Hz   4:3    31.469 kHz  25.175 MHz
>     Apple   :   640x480    66.667 Hz   4:3    35.000 kHz  30.240 MHz
>     DMT 0x05:   640x480    72.809 Hz   4:3    37.861 kHz  31.500 MHz
>     DMT 0x06:   640x480    75.000 Hz   4:3    37.500 kHz  31.500 MHz
>     DMT 0x08:   800x600    56.250 Hz   4:3    35.156 kHz  36.000 MHz
>     DMT 0x09:   800x600    60.317 Hz   4:3    37.879 kHz  40.000 MHz
>     DMT 0x0a:   800x600    72.188 Hz   4:3    48.077 kHz  50.000 MHz
>     DMT 0x0b:   800x600    75.000 Hz   4:3    46.875 kHz  49.500 MHz
>     Apple   :   832x624    74.551 Hz   4:3    49.726 kHz  57.284 MHz
>     DMT 0x10:  1024x768    60.004 Hz   4:3    48.363 kHz  65.000 MHz
>     DMT 0x11:  1024x768    70.069 Hz   4:3    56.476 kHz  75.000 MHz
>     DMT 0x12:  1024x768    75.029 Hz   4:3    60.023 kHz  78.750 MHz
>     DMT 0x24:  1280x1024   75.025 Hz   5:4    79.976 kHz 135.000 MHz
>   Standard Timings:
>     DMT 0x15:  1152x864    75.000 Hz   4:3    67.500 kHz 108.000 MHz
>     DMT 0x23:  1280x1024   60.020 Hz   5:4    63.981 kHz 108.000 MHz
>     DMT 0x20:  1280x960    60.000 Hz   4:3    60.000 kHz 108.000 MHz
>     DMT 0x2f:  1440x900    59.887 Hz  16:10   55.935 kHz 106.500 MHz
>     DMT 0x33:  1600x1200   60.000 Hz   4:3    75.000 kHz 162.000 MHz
>     DMT 0x3a:  1680x1050   59.954 Hz  16:10   65.290 kHz 146.250 MHz
>     DMT 0x52:  1920x1080   60.000 Hz  16:9    67.500 kHz 148.500 MHz
>   Detailed Timing Descriptors:
>     DTD 1:  1920x1080   60.000 Hz  16:9    67.500 kHz 148.500 MHz (531 mm x
> 299 mm)
>                  Hfront   88 Hsync  44 Hback 148 Hpol P
>                  Vfront    4 Vsync   5 Vback  36 Vpol P
>   Display Range Limits:
>     Monitor ranges (GTF): 50-76 Hz V, 30-83 kHz H, max dotclock 170 MHz
>     Display Product Name: 'VE248'
>     Display Product Serial Number: 'L5LMQS046816'
>   Extension blocks: 1
> Checksum: 0xa9
>
> ----------------
>
> Block 1, CTA-861 Extension Block:
>   Revision: 3
>   Underscans PC formats by default
>   Basic audio support
>   Supports YCbCr 4:4:4
>   Supports YCbCr 4:2:2
>   Native detailed modes: 1
>   Video Data Block:
>     VIC  16:  1920x1080   60.000 Hz  16:9    67.500 kHz 148.500 MHz (native)
>     VIC   5:  1920x1080i  60.000 Hz  16:9    33.750 kHz  74.250 MHz
>     VIC   4:  1280x720    60.000 Hz  16:9    45.000 kHz  74.250 MHz
>     VIC   3:   720x480    59.940 Hz  16:9    31.469 kHz  27.000 MHz
>     VIC   2:   720x480    59.940 Hz   4:3    31.469 kHz  27.000 MHz
>     VIC   1:   640x480    59.940 Hz   4:3    31.469 kHz  25.175 MHz
>     VIC  17:   720x576    50.000 Hz   4:3    31.250 kHz  27.000 MHz
>     VIC  18:   720x576    50.000 Hz  16:9    31.250 kHz  27.000 MHz
>     VIC  19:  1280x720    50.000 Hz  16:9    37.500 kHz  74.250 MHz
>     VIC  20:  1920x1080i  50.000 Hz  16:9    28.125 kHz  74.250 MHz
>     VIC  31:  1920x1080   50.000 Hz  16:9    56.250 kHz 148.500 MHz
>   Audio Data Block:
>     Linear PCM:
>       Max channels: 2
>       Supported sample rates (kHz): 48 44.1 32
>       Supported sample sizes (bits): 24 20 16
>   Speaker Allocation Data Block:
>     FL/FR - Front Left/Right
>   Vendor-Specific Data Block (HDMI), OUI 00-0C-03:
>     Source physical address: 1.0.0.0
>   Detailed Timing Descriptors:
>     DTD 2:  1920x1080   59.988 Hz  16:9    66.587 kHz 138.500 MHz (531 mm x
> 299 mm)
>                  Hfront   48 Hsync  32 Hback  80 Hpol P
>                  Vfront    3 Vsync   5 Vback  22 Vpol N
>     DTD 3:  1366x768    59.790 Hz 683:384  47.712 kHz  85.500 MHz (531 mm x
> 299 mm)
>                  Hfront   70 Hsync 143 Hback 213 Hpol P
>                  Vfront    3 Vsync   3 Vback  24 Vpol P
>     DTD 4:  1280x720    60.000 Hz  16:9    45.000 kHz  74.250 MHz (531 mm x
> 299 mm)
>                  Hfront  110 Hsync  40 Hback 220 Hpol P
>                  Vfront    5 Vsync   5 Vback  20 Vpol P
>     DTD 5:   720x480    59.940 Hz   3:2    31.469 kHz  27.000 MHz (531 mm x
> 299 mm)
>                  Hfront   16 Hsync  62 Hback  60 Hpol N
>                  Vfront    9 Vsync   6 Vback  30 Vpol N
>     DTD 6:  1920x1080i  60.000 Hz  16:9    33.750 kHz  74.250 MHz (531 mm x
> 299 mm)
>                  Hfront   88 Hsync  44 Hback 148 Hpol P
>                  Vfront    2 Vsync   5 Vback  15 Vpol P Vfront +0.5 Odd Field
>                  Vfront    2 Vsync   5 Vback  15 Vpol P Vback  +0.5 Even Field
> Checksum: 0x39
>
> ----------------
>
> edid-decode SHA: 56dd103a0c20724ee956950f5bcb8cc1c8667af9
>
> Warnings:
>
> Block 1, CTA-861 Extension Block:
>   Display Product Serial Number is set, so the Serial Number in the Base EDID
> should be 0.
>   Missing VCDB, needed for Set Selectable RGB Quantization to avoid interop
> issues.
> EDID:
>   CTA-861: Multiple native progressive timings are defined.
>
> Failures:
>
> EDID:
>   Base EDID: Some timings are out of range of the Monitor Ranges:
>     Horizontal Freq: 28.125 - 79.976 kHz (Monitor: 30.000 - 83.000 kHz)
>
> EDID conformity: FAIL
> ============================ edid report, 'fail' monitor 2/2 (ASUS VE228)
> edid-decode (hex):
>
> 00 ff ff ff ff ff ff 00 04 69 fa 22 01 01 01 01
> 1a 1c 01 03 80 30 1b 78 ea 3d 25 a3 59 51 a0 25
> 0f 50 54 bf ef 00 71 4f 81 80 81 40 95 00 a9 40
> b3 00 d1 c0 01 01 02 3a 80 18 71 38 2d 40 58 2c
> 45 00 dd 0c 11 00 00 1e 00 00 00 fd 00 32 4c 1e
> 53 11 00 0a 20 20 20 20 20 20 00 00 00 fc 00 56
> 45 32 32 38 0a 20 20 20 20 20 20 20 00 00 00 ff
> 00 4a 36 4c 4d 51 53 31 30 38 34 30 31 0a 01 53
>
> 02 03 1e f1 4b 90 05 04 03 02 01 11 12 13 14 1f
> 23 09 07 07 83 01 00 00 65 03 0c 00 10 00 1a 36
> 80 a0 70 38 1e 40 30 20 35 00 dd 0c 11 00 00 1a
> 66 21 56 aa 51 00 1e 30 46 8f 33 00 dd 0c 11 00
> 00 1e 01 1d 00 72 51 d0 1e 20 6e 28 55 00 dd 0c
> 11 00 00 1e 8c 0a d0 8a 20 e0 2d 10 10 3e 96 00
> dd 0c 11 00 00 18 01 1d 80 18 71 1c 16 20 58 2c
> 25 00 dd 0c 11 00 00 9f 00 00 00 00 00 00 00 32
>
> ----------------
>
> Block 0, Base EDID:
>   EDID Structure Version & Revision: 1.3
>   Vendor & Product Identification:
>     Manufacturer: ACI
>     Model: 8954
>     Serial Number: 16843009
>     Made in: week 26 of 2018
>   Basic Display Parameters & Features:
>     Digital display
>     Maximum image size: 48 cm x 27 cm
>     Gamma: 2.20
>     DPMS levels: Standby Suspend Off
>     RGB color display
>     First detailed timing is the preferred timing
>   Color Characteristics:
>     Red  : 0.6367, 0.3505
>     Green: 0.3193, 0.6259
>     Blue : 0.1445, 0.0605
>     White: 0.3134, 0.3291
>   Established Timings I & II:
>     IBM     :   720x400    70.082 Hz   9:5    31.467 kHz  28.320 MHz
>     DMT 0x04:   640x480    59.940 Hz   4:3    31.469 kHz  25.175 MHz
>     Apple   :   640x480    66.667 Hz   4:3    35.000 kHz  30.240 MHz
>     DMT 0x05:   640x480    72.809 Hz   4:3    37.861 kHz  31.500 MHz
>     DMT 0x06:   640x480    75.000 Hz   4:3    37.500 kHz  31.500 MHz
>     DMT 0x08:   800x600    56.250 Hz   4:3    35.156 kHz  36.000 MHz
>     DMT 0x09:   800x600    60.317 Hz   4:3    37.879 kHz  40.000 MHz
>     DMT 0x0a:   800x600    72.188 Hz   4:3    48.077 kHz  50.000 MHz
>     DMT 0x0b:   800x600    75.000 Hz   4:3    46.875 kHz  49.500 MHz
>     Apple   :   832x624    74.551 Hz   4:3    49.726 kHz  57.284 MHz
>     DMT 0x10:  1024x768    60.004 Hz   4:3    48.363 kHz  65.000 MHz
>     DMT 0x11:  1024x768    70.069 Hz   4:3    56.476 kHz  75.000 MHz
>     DMT 0x12:  1024x768    75.029 Hz   4:3    60.023 kHz  78.750 MHz
>     DMT 0x24:  1280x1024   75.025 Hz   5:4    79.976 kHz 135.000 MHz
>   Standard Timings:
>     DMT 0x15:  1152x864    75.000 Hz   4:3    67.500 kHz 108.000 MHz
>     DMT 0x23:  1280x1024   60.020 Hz   5:4    63.981 kHz 108.000 MHz
>     DMT 0x20:  1280x960    60.000 Hz   4:3    60.000 kHz 108.000 MHz
>     DMT 0x2f:  1440x900    59.887 Hz  16:10   55.935 kHz 106.500 MHz
>     DMT 0x33:  1600x1200   60.000 Hz   4:3    75.000 kHz 162.000 MHz
>     DMT 0x3a:  1680x1050   59.954 Hz  16:10   65.290 kHz 146.250 MHz
>     DMT 0x52:  1920x1080   60.000 Hz  16:9    67.500 kHz 148.500 MHz
>   Detailed Timing Descriptors:
>     DTD 1:  1920x1080   60.000 Hz  16:9    67.500 kHz 148.500 MHz (477 mm x
> 268 mm)
>                  Hfront   88 Hsync  44 Hback 148 Hpol P
>                  Vfront    4 Vsync   5 Vback  36 Vpol P
>   Display Range Limits:
>     Monitor ranges (GTF): 50-76 Hz V, 30-83 kHz H, max dotclock 170 MHz
>     Display Product Name: 'VE228'
>     Display Product Serial Number: 'J6LMQS108401'
>   Extension blocks: 1
> Checksum: 0x53
>
> ----------------
>
> Block 1, CTA-861 Extension Block:
>   Revision: 3
>   Underscans PC formats by default
>   Basic audio support
>   Supports YCbCr 4:4:4
>   Supports YCbCr 4:2:2
>   Native detailed modes: 1
>   Video Data Block:
>     VIC  16:  1920x1080   60.000 Hz  16:9    67.500 kHz 148.500 MHz (native)
>     VIC   5:  1920x1080i  60.000 Hz  16:9    33.750 kHz  74.250 MHz
>     VIC   4:  1280x720    60.000 Hz  16:9    45.000 kHz  74.250 MHz
>     VIC   3:   720x480    59.940 Hz  16:9    31.469 kHz  27.000 MHz
>     VIC   2:   720x480    59.940 Hz   4:3    31.469 kHz  27.000 MHz
>     VIC   1:   640x480    59.940 Hz   4:3    31.469 kHz  25.175 MHz
>     VIC  17:   720x576    50.000 Hz   4:3    31.250 kHz  27.000 MHz
>     VIC  18:   720x576    50.000 Hz  16:9    31.250 kHz  27.000 MHz
>     VIC  19:  1280x720    50.000 Hz  16:9    37.500 kHz  74.250 MHz
>     VIC  20:  1920x1080i  50.000 Hz  16:9    28.125 kHz  74.250 MHz
>     VIC  31:  1920x1080   50.000 Hz  16:9    56.250 kHz 148.500 MHz
>   Audio Data Block:
>     Linear PCM:
>       Max channels: 2
>       Supported sample rates (kHz): 48 44.1 32
>       Supported sample sizes (bits): 24 20 16
>   Speaker Allocation Data Block:
>     FL/FR - Front Left/Right
>   Vendor-Specific Data Block (HDMI), OUI 00-0C-03:
>     Source physical address: 1.0.0.0
>   Detailed Timing Descriptors:
>     DTD 2:  1920x1080   59.988 Hz  16:9    66.587 kHz 138.500 MHz (477 mm x
> 268 mm)
>                  Hfront   48 Hsync  32 Hback  80 Hpol P
>                  Vfront    3 Vsync   5 Vback  22 Vpol N
>     DTD 3:  1366x768    59.790 Hz 683:384  47.712 kHz  85.500 MHz (477 mm x
> 268 mm)
>                  Hfront   70 Hsync 143 Hback 213 Hpol P
>                  Vfront    3 Vsync   3 Vback  24 Vpol P
>     DTD 4:  1280x720    60.000 Hz  16:9    45.000 kHz  74.250 MHz (477 mm x
> 268 mm)
>                  Hfront  110 Hsync  40 Hback 220 Hpol P
>                  Vfront    5 Vsync   5 Vback  20 Vpol P
>     DTD 5:   720x480    59.940 Hz   3:2    31.469 kHz  27.000 MHz (477 mm x
> 268 mm)
>                  Hfront   16 Hsync  62 Hback  60 Hpol N
>                  Vfront    9 Vsync   6 Vback  30 Vpol N
>     DTD 6:  1920x1080i  60.000 Hz  16:9    33.750 kHz  74.250 MHz (477 mm x
> 268 mm)
>                  Hfront   88 Hsync  44 Hback 148 Hpol P
>                  Vfront    2 Vsync   5 Vback  15 Vpol P Vfront +0.5 Odd Field
>                  Vfront    2 Vsync   5 Vback  15 Vpol P Vback  +0.5 Even Field
> Checksum: 0x32
>
> ----------------
>
> edid-decode SHA: 56dd103a0c20724ee956950f5bcb8cc1c8667af9
>
> Warnings:
>
> Block 1, CTA-861 Extension Block:
>   Display Product Serial Number is set, so the Serial Number in the Base EDID
> should be 0.
>   Missing VCDB, needed for Set Selectable RGB Quantization to avoid interop
> issues.
> EDID:
>   CTA-861: Multiple native progressive timings are defined.
>
> Failures:
>
> EDID:
>   Base EDID: Some timings are out of range of the Monitor Ranges:
>     Horizontal Freq: 28.125 - 79.976 kHz (Monitor: 30.000 - 83.000 kHz)
>
> EDID conformity: FAIL
> ============================ end-of-message
>



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