[Nouveau] 640x480 does not fill screen

[Dan Espen]

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

which contains:

-------------- next part --------------
A non-text attachment was scrubbed...
Name: edid-nv
Type: application/octet-stream
Size: 256 bytes
Desc: not available
URL: <https://lists.freedesktop.org/archives/nouveau/attachments/20190206/65421330/attachment-0001.obj>
-------------- next part --------------

Here is the content of ~/.local//share/xorg/Xorg.0.log

-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: Xorg.0.log
URL: <https://lists.freedesktop.org/archives/nouveau/attachments/20190206/65421330/attachment-0001.ksh>
-------------- next part --------------

Toward the end I did:

xrandr -s 640x480
xrandr -s 3820x2160

> The thing about 640x480 is that it's not a lot of pixels, too few for
> some modern monitors. I believe some games need to be played in order
> to increase the pixel clock, and I suspect nouveau doesn't play them
> correctly.
>
> Cheers,
>
>   -ilia
>
> On Wed, Feb 6, 2019 at 11:31 AM Dan Espen <dan1espen at gmail.com> wrote:
>>
>>
>> I've been using the NVidia drivers and recently managed to
>> get Nouveau working.  Well almost working.
>>
>> Running the command:
>>
>> xrandr -s 640x480
>>
>> results in a desktop that spans the monitor but leaves black bands of
>> about a third of the screen on the top and bottom.
>> This results in an unreadable display playing games like Lbrickbuster2.
>> I'd like the display to fill the screen.
>>
>> To confirm that this is a Nouveau issue, I switched back to NVidia
>> where 640x480 looks fine.
>>
>> I'm using Fedora 29 (xorg-x11-drv-nouveau.x86_64 1:1.0.15-6.fc29),
>> NVidia-390 drivers, GeForce GTX 1050 Ti, and a DELL S2817Q.
>>
>> --
>> Dan Espen
>> _______________________________________________
>> Nouveau mailing list
>> Nouveau at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/nouveau

-- 
Dan Espen