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

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On Tue, Aug 04, 2020 at 01:43:29AM +0000, Thierry Moreau wrote:
> Dear kernel / GPU enthusiasts!
> 
> This list is listed in the kernel MAINTAINERS file for GMA500 GPU kernel
> module.

Just to avoid disappointment later on: For the gma500 driver it's
essentially unmaintained, but we do take patches if they show up.

> My message is either a call for help (not a mission-critical issue) or
> troubleshooting information useful to fix an outstanding issue in the GMA500
> kernel 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".
> 
> Unfortunately, with two ASUS monitors, the above line in the boot log never
> appears. And the console 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.

Uh this is strange, the gma500 driver should still load all fine and
register that framebuffer driver. I think the only case where gma500 loads
but psbdrmfb isn't set up is if it doesn't detect any outputs. I'd test
these monitors with some other linux system first (they might be simply
too broken), if that doesn't work you can quirk your system with the video
boot parameter perhaps:


https://dri.freedesktop.org/docs/drm/fb/modedb.html

Cheers, Daniel

> 
> See below:
> 
> two boot log excerpts (grep'ing gcc\|drm\|gma5\|console\|fbcon\|D2550 -C 2)
> for the 'pass' and 'fail' boot sequences;
> 
> three edid reports for the (pass) HAI monitor and two (fail) ASUS monitors.
> 
> Thanks in advance, and best regards!
> 
> - 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
> _______________________________________________
> dri-devel mailing list
> dri-devel@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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