Gitchy graphics with xserver

[jeffycn]

Gitchy graphics with xserver

[JeffyCN]

Hi,

By "a weird issue with the xserver", did you mean the "missing rockchip_dri.so" warning?
If so, that is expected, and it will fallback to swrast.

We only provide GBM/EGL/GLESv2/GLESv1/OPENCL with mali, so other implements(e.g. glx) will fallback to mesa(software opengl)

And according to the log, you are using RGA(hw accel module) based exa accel and flipfb(double-buffer rendering, slow but avoid tearing):
[ 9.852] () modeset(0): Option "AccelMethod" "exa"
[ 9.852] () modeset(0): Option "FlipFB" "always"
[ 9.861] (II) modeset(0): Using RGA EXA

There's no other error logs, so guessing it should work.

[mhuangwm]

Hi Jeffy,
By weird issue, I mean rendering of the graphics onto the screen (like the image I posted). Top half seems to have multiple renderings of the terminal box and the bottom half has the calibration screen. (I was expecting just a single terminal box).

What settings/drivers would you recommend to use on the rk3399pro boards to use for smooth experiences? Like watching youtube

[mhuangwm]

For reference, this is what I expected (I built this against poky's xserver's recipe and without librga)

[JeffyCN]

well, that seems like something wrong in the kernel side(rga driver).
maybe try to modify /etc/X11/xorg*/20-mod*.conf, change exa to glamor

[JeffyCN]

by the way, if possible, please upload your rootfs and kernel image, maybe i can try to debug it.
and which version of this repo did you use?

[mhuangwm]

thanks for reaching out a helping hand, I appreciate it.
I added the openbox WM and the problem seem to go away (weird). i think previously it was using matchbox.. so maybe something that with matchbox that it doesn't like.

I also tried using glamor, but rendering of GUI is extremely slow (on xfce deskop).. is this expected?

[mhuangwm]

Jeffy, I'll go ahead and close this issue. It also turns out that mali drivers weren't loading properly (kernel expecting r14, but r18 was installed)

[JeffyCN]

Jeffy, I'll go ahead and close this issue. It also turns out that mali drivers weren't loading properly (kernel expecting r14, but r18 was installed)

So the kernel is old(with out-dated mali driver), and there're lots of fixes about RGA in recent kernel.
The matchbox+lxterminal works well on my side, could related to kernel version.