[Nouveau] [Bug 109654] Nouveau picks bad mode setting 640x480 resolution

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109654

--- Comment #1 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Created attachment 143385
  --> https://bugs.freedesktop.org/attachment.cgi?id=143385&action=edit
monitor edid

Nouveau doesn't pick these things -- it does what it's told.

It does, however, allow it. Sounds like something about the monitor should make
that illegal, but it's unclear what that would be.

Attaching EDID sent via ML. The interesting bits decode as

Established timings supported:
  720x400 at 70Hz 9:5 HorFreq: 31469 Hz Clock: 28.320 MHz
  640x480 at 60Hz 4:3 HorFreq: 31469 Hz Clock: 25.175 MHz
  640x480 at 75Hz 4:3 HorFreq: 37500 Hz Clock: 31.500 MHz
  800x600 at 60Hz 4:3 HorFreq: 37900 Hz Clock: 40.000 MHz
  800x600 at 75Hz 4:3 HorFreq: 46900 Hz Clock: 49.500 MHz
  1024x768 at 60Hz 4:3 HorFreq: 48400 Hz Clock: 65.000 MHz
  1024x768 at 75Hz 4:3 HorFreq: 60000 Hz Clock: 78.750 MHz
  1280x1024 at 75Hz 5:4 HorFreq: 80000 Hz Clock: 135.000 MHz
Standard timings supported:
  1920x1080 at 60Hz 16:9
  1600x1200 at 60Hz 4:3 HorFreq: 75000 Hz Clock: 162.000 MHz
  1280x1024 at 60Hz 5:4 HorFreq: 64000 Hz Clock: 108.000 MHz
  1280x800 at 60Hz 16:10
  1152x864 at 75Hz 4:3 HorFreq: 67500 Hz Clock: 108.000 MHz

CTA extension block
Extension version: 3
25 bytes of CTA data
  Video data block
...
    VIC   3 720x480 at 60Hz 16:9  HorFreq: 31469 Hz Clock: 27.000 MHz
    VIC   2 720x480 at 60Hz 4:3  HorFreq: 31469 Hz Clock: 27.000 MHz
    VIC   1 640x480 at 60Hz 4:3  HorFreq: 31469 Hz Clock: 25.175 MHz


So it certainly seems like 640x480 at 60 should work OK.

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