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Re: problem with GeForce GTX 1050



On 7/9/20 11:56 AM, Dan Ritter wrote:

The xrandr output stops reporting that there are DVI-D-1 and HDMI-1
outputs etc, showing only Screen.
Show the output to us, please?


Sure.  Here's the xrandr output with a newer kernel, where it's not working:

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 1600 x 1200, maximum 1600 x 1200
default connected 1600x1200+0+0 0mm x 0mm
   1600x1200      0.00*
   800x600        0.00
   640x480        0.00

And here it is from an older kernel where it's working (I removed a bunch of the modelines to shorten it):

Screen 0: minimum 320 x 200, current 3760 x 1600, maximum 16384 x 16384
DVI-D-1 connected primary 1200x1600+0+0 right (normal left inverted right x axis y axis) 408mm x 306mm
   1600x1200     60.00*+
   1600x1024     60.17
   1400x1050     74.76    70.00    59.98
   1600x900      59.95    59.82
   1280x1024     85.02    75.02    60.02
   ...
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-1 connected 2560x1600+1200+0 (normal left inverted right x axis y axis) 641mm x 401mm
   2560x1600     59.97*+
   2560x1440     59.95
   2048x1536     60.00
   1920x1440     60.00
   ...


You shouldn't have the Radeon driver installed at all. That's
for a different manufacturer's boards.


Right.  Don't know why I got Radeon stuck in my head.


You should have either nouveau or NVidia drivers installed.
Nouveau is open source. NVidia is closed-source.


The nouveau driver is installed in both cases.


Together with that, you need the Kernel Modesetting driver.


Don't know what this one is.  Is it something new that began with the 5.6.0 kernel?


I suspect what you're seeing is a lack of correct driver,
leading to a fallback to VESA standards.


While the nouveau driver is installed, there is a difference. Don't know what it means.  Running lsmod | grep nouveau I get (non-working):

nouveau              2318336  0
video                  53248  1 nouveau
ttm                   118784  1 nouveau
drm_kms_helper        249856  1 nouveau
drm                   606208  3 drm_kms_helper,ttm,nouveau
mxm_wmi                16384  1 nouveau
i2c_algo_bit           16384  2 igb,nouveau
wmi                    36864  3 wmi_bmof,mxm_wmi,nouveau
button                 24576  1 nouveau

vs (working):

nouveau              2273280  2
video                  53248  1 nouveau
ttm                   122880  1 nouveau
drm_kms_helper        233472  1 nouveau
mxm_wmi                16384  1 nouveau
drm                   585728  5 drm_kms_helper,ttm,nouveau
i2c_algo_bit           16384  2 igb,nouveau
wmi                    36864  3 wmi_bmof,mxm_wmi,nouveau
button                 24576  1 nouveau

That 0 on the nouveau driver line in the non-working version means no-one is using that driver, yes?  Could be a sign of what's going wrong but I don't know where that lead takes me.



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