Re: Report issue similar to or same as BUG 234132

[Greg Rivers]

As of 

Dec 24 11:55:52  pkg[18901]: xf86-video-intel upgraded: 2.99.917.20180906 -> 
2.99.917.20181203

the problem is resolved.

-- 
Greg

Re: Report issue similar to or same as BUG 234132

[Greg Rivers]

On Wednesday, December 19, 2018 3:16:16 PM CST Jeremy wrote:
> I would like to report an issue similar to BUG 234132. I was running FreeBSD
> stable 12 build r341835. My install included xserver 1.20 and mesa 18.3.1,
> with the drm-kmod for FreeBSD 12 (based on Linux KPI 4.16), using Haswell
> HD 4600 integrated video. I am also using the Intel driver, not
> modesetting. I was using Plasma 5.12.7, KF5 5.52 and QT5 5.11. Everything
> in Plasma was working fine, all of the KDE apps ran correctly and I had no
> issues.
> 
> When I upgraded to KF5 5.53 and QT5 5.12, I ran into very similar issues to
> what was reported from BUG 234132. There were rendering and screen
> flickering issues. My KDE desktop was virtually unusable from those issues.
>
I had the same experience after this update too. It must be a bad interaction 
with Haswell graphics. I have:
vgapci0@pci0:0:2:0: class=0x03 card=0x198f103c chip=0x0a168086 rev=0x0b 
hdr=0x00
vendor = 'Intel Corporation'
device = 'Haswell-ULT Integrated Graphics Controller'
class  = display
subclass   = VGA

~/.local/share/sddm/xorg-session.log records:
OpenGL vendor string:   Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Haswell Mobile 
OpenGL version string:  4.5 (Core Profile) Mesa 18.1.9
OpenGL shading language version string: 4.50
Driver: Intel
GPU class:  Haswell
OpenGL version: 4.5
GLSL version:   4.50
Mesa version:   18.1.9
X server version:   1.18.4
Requires strict binding:yes
GLSL shaders:   yes
Texture NPOT support:   yes
Virtual Machine:no

I'm using sddm to start X/KDE. Apparently it's an initalization/start-up issue; 
if I disable compositing on startup[1] and then enable it after my KDE session 
is up and running, acceleration and compositing work fine thereafter. It's not 
perfect, but it's a serviceable work-around.


[1] System Settings/Display and Monitor/Compositor/Enable compositor on startup
(This sets Enabled=false in the [Compositing] section of ~/.config/kwinrc)

-- 
Greg Rivers

Report issue similar to or same as BUG 234132

[Jeremy]

I would like to report an issue similar to BUG 234132. I was running
FreeBSD stable 12 build r341835. My install included xserver 1.20 and mesa
18.3.1, with the drm-kmod for FreeBSD 12 (based on Linux KPI 4.16), using
Haswell HD 4600 integrated video. I am also using the Intel driver, not
modesetting. I was using Plasma 5.12.7, KF5 5.52 and QT5 5.11. Everything
in Plasma was working fine, all of the KDE apps ran correctly and I had no
issues.

When I upgraded to KF5 5.53 and QT5 5.12, I ran into very similar issues to
what was reported from BUG 234132. There were rendering and screen
flickering issues. My KDE desktop was virtually unusable from those issues.
So first I uninstalled and reinstalled all of my apps from my poudriere
repo and cleared the .cache folders in my accounts that I log into. The
issue remained. I then downgraded my versions of xserver back to 1.18 and
mesa back to 18.1.9 (essentially using the current ports tree) with a clean
repo from poudriere. With Plasma versions 5.12.7, KF5 5.53 and QT5 5.12,
the issues remained unchanged.

I then reverted the updates for QT5 5.12 and KF5 5.53 back to QT5 5.11 and
KF5 5.52, and cleaned out the .cache folders again, and rebuilt with a
clean poudriere repo and the issue is gone. So I am essentially using the
ports tree from right before the QT5 5.12 and KF5 5.53 commits were made.
Everything is running normally and all of the KDE programs are running
fine. I'm sorry for the lengthily post. I hope this can shed a little more
light on the issue.