[Nouveau] GM206 [GeForce GTX 960] with 4k display

[Ilia Mirkin]

Would be nice if you could "bisect" those, i.e. which one matters? Or
do they both have to be there to have the desired effect?

On Mon, May 8, 2017 at 11:52 PM, Karl Schmidt <karl at xtronics.com> wrote:
> I was getting a glicthy checkerboard mess at the cursor in some programs
> (konsol+) with
> # cat /proc/cmdline
> BOOT_IMAGE=/boot/vmlinuz-4.9.0-2-amd64
> root=UUID=4107d1db-62a3-427c-8515-c954a103ce25 ro text quiet
>
>
> changed the command line in a blind attempt to:
>
> $ cat /proc/cmdline
> BOOT_IMAGE=/boot/vmlinuz-4.9.0-2-amd64
> root=UUID=4107d1db-62a3-427c-8515-c954a103ce25 ro
> nouveau.config=NvForcePost=1 acpi_osi=Linux text quiet
>
> The cursor bug disappeared. <grin>
>
>
> My understanding of the command-line bits is not perfect - but I think that
> acpi_osi=Linux tells acpi to get along with linux - not understanding what
> nouveau.config=NvForcePost=1 does - google failed me.
>
> If someone can explain what I did - you will make an old man smile..
>
> nouveau still complains a bit - not sure it is important.
>
>
> May  8 22:26:51 singapore kernel: [    6.410185] nouveau 0000:08:00.0: DRM:
> Pointer to flat panel table invalid
> May  8 22:26:51 singapore kernel: [    6.418002] nouveau 0000:08:00.0: DRM:
> unknown connector type 70
> May  8 22:26:51 singapore kernel: [    6.418054] nouveau 0000:08:00.0: DRM:
> failed to create encoder 1/8/0: -19
> May  8 22:26:51 singapore kernel: [    6.418056] nouveau 0000:08:00.0: DRM:
> Unknown-1 has no encoders, removing
> May  8 22:26:51 singapore kernel: [    6.418098] [drm] Supports vblank
> timestamp caching Rev 2 (21.10.2013).
> May  8 22:26:51 singapore kernel: [    6.418099] [drm] Driver supports
> precise vblank timestamp query.
> May  8 22:26:51 singapore kernel: [    6.448895] iTCO_vendor_support:
> vendor-support=0
> May  8 22:26:51 singapore kernel: [    6.452446] iTCO_wdt: Intel TCO
> WatchDog Timer Driver v1.11
> May  8 22:26:51 singapore kernel: [    6.452499] iTCO_wdt: unable to reset
> NO_REBOOT flag, device disabled by hardware/BIOS
> May  8 22:26:51 singapore kernel: [    6.464947] kvm:
> VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL does not work properly. Using workaround
> May  8 22:26:51 singapore kernel: [    6.528616] nouveau 0000:08:00.0: DRM:
> MM: using COPY for buffer copies
>
> I've attached bits if it might be of use.
>
> Can dig up more if anyone needs it.
>
> $ xrandr -q
> Screen 0: minimum 320 x 200, current 3840 x 2160, maximum 16384 x 16384
> DVI-I-1 disconnected (normal left inverted right x axis y axis)
> DP-1 disconnected (normal left inverted right x axis y axis)
> DP-2 disconnected (normal left inverted right x axis y axis)
> DP-3 disconnected (normal left inverted right x axis y axis)
> HDMI-1 connected primary 3840x2160+0+0 (normal left inverted right x axis y
> axis) 1085mm x 610mm
>    1920x1080     60.00 +  50.00    59.94    59.93    30.00    24.00    29.97
> 23.98
>    4096x2160     24.00    23.98
>    3840x2160     30.00*   25.00    24.00    29.97    23.98
> <snip>
>
>
>
> --------------------------------------------------------------------------------
> Karl Schmidt                                  EMail Karl at xtronics.com
> Transtronics, Inc.                              WEB
> https://secure.transtronics.com
> 3209 West 9th Street                             Ph (785) 841-3089
> Lawrence, KS 66049                              FAX (785) 841-3089
>
> --------------------------------------------------------------------------------
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