vmwgfx + libkms on VMware hardware 8

[Jakob Bornecrantz]

Thanks for taking interesting in our driver.

----- Original Message ----- 
> Hi,
>
> I 'm trying to test KMS functionality of latest vmwgfx module.
> I tried the code from
> http://permalink.gmane.org/gmane.comp.video.dri.devel/42908
>
> as a simple test case, but all I get is a black screen instead
> of white as would be expected.

I'm able to reproduce the bug at my end, quick debugging shows
that the commands seems to be sent to the host. I'll try and
get to the bottom of this once I done a couple of other tasks.

>
> Setup:
> VMWare Workstation 8.0.0
> Host & Guest distro: kubuntu oneiric (11.10)
> libdrm: 2.4.26+git20111003.c82ef03e from xorg-edgers ppa
> vmwgfx module: latest git version from freedesktop.org
>
> dmesg output (vmwgfx initialization / capabilities)
>
> [ 3.696893] vmwgfx 0000:00:0f.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
> [ 3.697188] [vmwgfx] Capabilities:
> [ 3.697191] [vmwgfx] Rect copy.
> [ 3.697193] [vmwgfx] Cursor.
> [ 3.697196] [vmwgfx] Cursor bypass.
> [ 3.697198] [vmwgfx] Cursor bypass 2.
> [ 3.697200] [vmwgfx] 8bit emulation.
> [ 3.697202] [vmwgfx] Alpha cursor.
> [ 3.697204] [vmwgfx] 3D.
> [ 3.697206] [vmwgfx] Extended Fifo.
> [ 3.697208] [vmwgfx] Multimon.
> [ 3.697210] [vmwgfx] Pitchlock.
> [ 3.697212] [vmwgfx] Irq mask.
> [ 3.697214] [vmwgfx] Display Topology.
> [ 3.697216] [vmwgfx] GMR.
> [ 3.697218] [vmwgfx] Traces.
> [ 3.697220] [vmwgfx] GMR2.
> [ 3.697222] [vmwgfx] Screen Object 2.
> [ 3.697224] [vmwgfx] Max GMR ids is 64
> [ 3.697226] [vmwgfx] Max GMR descriptors is 4096
> [ 3.697229] [vmwgfx] Max number of GMR pages is 196608
> [ 3.697231] [vmwgfx] Max dedicated hypervisor surface memory is 786432 kiB
> [ 3.697234] [vmwgfx] VRAM at 0xd0000000 size is 131072 kiB
> [ 3.697236] [vmwgfx] MMIO at 0xc8800000 size is 2048 kiB
> [ 3.697239] [vmwgfx] global init.
> [ 3.700262] [vmwgfx] width 640
> [ 3.700276] [vmwgfx] height 480
> [ 3.700289] [vmwgfx] bpp 32
> [ 3.704308] [vmwgfx] Fifo max 0x00200000 min 0x00001000 cap 0x0000077f
> [ 3.728297] [vmwgfx] Screen objects system initialized
> [ 3.728303] [vmwgfx] Detected device 3D availability.
> [ 3.728401] [vmwgfx] Initialized vmwgfx 2.1.0 20110927 for 0000:00:0f.0 on minor 0
>
> I 'm trying with ./modeset -s 4 at 6:1024x768
>
> Running the above under strace shows that all underlying ioctls
> succeed, so it looks like this code should work.
>
> It looks like the update command is not sent to the card because if I
> add the parameter svga.forceTraces = "TRUE" to the .vmx file of the
> VM, I see a white rectangle as expected (the mode still doesn't look
> right though, it looks like the size of the rectangle is 640x480
> instead of 1024x768)

Does the UI resize? If you haven't set the option for the UI to
resize itself when the guest changes size it wont and will scale
the picture.

>
> I also get in the vmware.log when I run the above:
>
> 2011-10-18T19:21:30.849+02:00| vcpu-0| I120: MKS enabling SVGA
> 2011-10-18T19:21:30.909+02:00| vcpu-0| I120: Guest display topology changed: numDisplays 0
> 2011-10-18T19:21:30.910+02:00| vcpu-0| I120: Guest display topology changed: numDisplays 0
> 2011-10-18T19:21:30.934+02:00| vcpu-0| I120: Guest display topology changed: numDisplays 0
> 2011-10-18T19:21:30.935+02:00| vcpu-0| I120: Guest display topology changed: numDisplays 0
> 2011-10-18T19:21:30.957+02:00| vcpu-0| I120: Guest display topology changed: numDisplays 0
> 2011-10-18T19:21:30.974+02:00| mks| W110: MKS-EmuSVGA: Unsupported GMR image format 0x00002020

This looks suspicious.

> 2011-10-18T19:21:38.837+02:00| vcpu-0| I120: Guest display topology changed: numDisplays 0
> 2011-10-18T19:21:38.940+02:00| mks| I120: MKS disabling SVGA
>
> Any ideas on what may be going wrong? VMWare would make a pretty cool
> platform to experiment with several features of the modern open
> graphics stack like wayland, plymouth, flickerless boot, integrated
> kernel debugger, multiseat etc etc.
>
> I 'll be happy to provide more debugging information on this problem
> as needed.

Cheers, Jakob.