Hi All,
Please find below a brief summary of the progress Collabora have made last week on Weston/Wayland.
Weston / Wayland
- SPEC-3410 (PipeWire not working on i.MX8MQ EVK). Continue reviewing PipeWire and ALSA and
review iMX8MQ SDMA driver and hardware docs. Prepare console test applicatio.
This investigation confirm the granularity issue. In order to fix it work on different paths
- Investigate scripting support on iMX8MQ SDMA. It is not clear if is possible to propose a
solution based on this and how difficult it would be.
- Prepare a workaround as an initial soution while working on a better one. The solution
consists basically in reduce the period_size to reduce the DMA transfer
- Start to implement interrupt-driven support on PipeWire.
Marius
- SPEC-3522 (Resize & Flickering of applications at start-up). Hinted that the problem was caused
by tweaking the repaint machinery inside qtwayland which was done in the past due to another issue
(related to SPEC-3334). After some fiddling it turns that was the cause, but I mistakently thought that
the assignment value of the environment variable which tunes that (QT_WAYLAND_RESIZE_AFTER_SWAP), can
be used to turn it off but it seems it is ignored altogether. Initialization of a qtwayland window
happens if that variable is present, irrespective of its value. Submitted a patch to disable
that environmental variable but needs a bit more polish to be integrated as template file
rather that tweaking the qtywaland bbappend.
- SPEC-3524 (Attempt to start an already started application results
in an error message from AFM). When "switching" between different applications, homescreen
binder reports it can't start (an already) started application. As homescreen binder is the one
that keeps track of running applications I'm speculating that it incorrectly reports that
the application is not running, and as such it tries to do it again. Same error message can be seen
when attempting to use the command line with afm-util. I haven't observed as of yet, as there seems
to be no loss of either performance or functionality, and the error messages at this point seem benign.
Kind regards,
Nick
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