[Nouveau] 640x480 does not fill screen

[Ilia Mirkin]

On Wed, Feb 6, 2019 at 3:28 PM Dan Espen <dan1espen at gmail.com> wrote:
>
> Ilia Mirkin <imirkin at alum.mit.edu> writes:
>
> > It would be useful to know how the screen is connected. Also please
> > grab the monitor's EDID from /sys/class/drm/cardN-connector/edid and
> > attach it here. It would also be interesting to get a boot with
> > "drm.debug=0x1e nouveau.debug=disp=trace" which has the modeswitch in
> > question.
>
> The screen is connected using the MDP port.
> I don't find any cardN-connector directory,
> the closest match is:
>
> /sys/class/drm/card0-DP-1/edid

N = 0
connector = DP-1

so looks like you found it.

I was actually looking for dmesg with those boot parameters, not the Xorg log.

Something to randomly try -- xrandr -s 640x480 -r 75 -- perhaps it'll
like that mode better. Also does 720x480 work better?

Looking at your EDID, you have:

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