XWayland / glamor on virtual machines

Peter Hanzel hanzelpeter at gmail.com
Wed Nov 12 04:27:20 PST 2014

Hello all.

I had a similar problem with gnome-wayland (missing texts). I
rebuilded xwayland without glamor and it works now.
The remaining problem is low resolution in VMware (640x480).

I boot to framebuffer console and use gnome-session --session
gnome-wayland to start it.

If someone knows have to get normal resolution, please write me an
email, thanks.

P.S. Normal Weston can do all resolutions with weston.ini output configs.

On Wed, Nov 12, 2014 at 12:24 PM, Thomas Hellstrom
<thellstrom at vmware.com> wrote:
> On 11/12/2014 11:57 AM, Pekka Paalanen wrote:
>> On Tue, 11 Nov 2014 15:52:53 +0100
>> Thomas Hellstrom <thellstrom at vmware.com> wrote:
>>> Hi!
>>> I was just starting out to try out XWayland in fedora 21 on top of
>>> gnome/wayland + vmwgfx.
>>> Currently no text is rendered, I'm not sure whether this is a glamor bug
>>> or a vmwgfx GL bug, but in any case, I suspect that using glamor for
>>> xrender acceleration will be very slow, and something we'd like to
>>> avoid. (The overhead of setting up accelerated state and allocating
>>> surfaces on vmwgfx will probably just be too high. But I'll need to get
>>> back with hard figures).
>>> What we would like to do is to use something like SAA, that we are using
>>> in the vmware DDX today, basically we avoid accelerating xrender and
>>> just accelerate copy / composite stuff that originates from the 3D
>>> driver, and that already resides on the host, to avoid readbacks.
>>> Does anybody have a strong feeling against us adding something like that
>>> to XWayland? As I see it, it could probably be implemented in various
>>> ways: It might be possible to reuse parts of Glamor for those operations
>>> where we need to accelerate. It should also be possible to implement
>>> something device-independent for gallium drivers on top of XA.
>>> Any feedback appreciated.
>> Hi,
>> sorry, I know nothing about the Xwayland internal architecture. I'm not
>> even sure we have any way to configure Xwayland.
>> Can you autodetect everything at runtime, or would there be some
>> configuration involved?
>> Thanks,
>> pq
> Hi!
> Right now there is a command line option for XWayland to use
> software-only rendering. That works OK, but will obviously not work with
> DRI apps. Adding another command-line option would be one way, but I
> guess there would be various other ways we could detect at run-time what
> GL / EGL driver is running and base the decision on that.
> Thanks,
> Thomas
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