[Bug 110908] New: [WHL] only one mode available

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110908

            Bug ID: 110908
           Summary: [WHL] only one mode available
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: tjaalton at ubuntu.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

filing here per request

a laptop with a weird EDID can only show 1920x1080 resolution, but other modes
work fine on Win10, apparently.

Extracted contents:
header: 00 ff ff ff ff ff ff 00
serial number: 06 af 2d 21 00 00 00 00 01 1d
version: 01 04
basic params: 95 1d 11 78 03
chroma info: 30 e5 a5 56 53 9d 27 0c 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: 14 37 80 b8 70 38 24 40 10 10 3e 00 25 a5 10 00 00 1a
descriptor 2: 10 2c 80 b8 70 38 24 40 10 10 3e 00 25 a5 10 00 00 1a
descriptor 3: 00 00 00 fe 00 48 48 59 43 59 80 42 31 33 33 48 41 4b
descriptor 4: 00 00 00 00 00 01 41 21 9e 00 10 00 00 0a 01 0a 20 20
extensions: 00
checksum: f2

EDID version: 1.4
Manufacturer: AUO Model 212d Serial Number 0
Made in week 1 of 2019
Digital display
6 bits per primary color channel
DisplayPort interface
Maximum image size: 29 cm x 17 cm
Gamma: 2.20
Supported color formats: RGB 4:4:4
First detailed timing includes the native pixel format and preferred refresh
rate
Display is continuous frequency
Display x,y Chromaticity:
  Red: 0.6445, 0.3388
  Green: 0.3242, 0.6132
  Blue: 0.1552, 0.0488
  White: 0.3134, 0.3291
Established timings supported:
Standard timings supported:
Detailed mode: Clock 141.000 MHz, 293 mm x 165 mm
               1920 1936 1952 2104 hborder 0
               1080 1083 1097 1116 vborder 0
               +hsync -vsync
               VertFreq: 60 Hz, HorFreq: 67015 Hz
Detailed mode: Clock 112.800 MHz, 293 mm x 165 mm
               1920 1936 1952 2104 hborder 0
               1080 1083 1097 1116 vborder 0
               +hsync -vsync
               VertFreq: 48 Hz, HorFreq: 53612 Hz
ASCII string: HHYCY
Manufacturer-specified data, tag 0
Checksum: 0xf2 (valid)

Unknown extension block

EDID block does NOT conform to EDID 1.4!
 Missing name descriptor
 Missing monitor ranges
 Detailed block string not properly terminated
EDID block does not conform at all!
 Has 101 nonconformant extension block(s)
 Invalid ASCII string

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