https://bugs.kde.org/show_bug.cgi?id=394561

            Bug ID: 394561
           Summary: Transparency doesn't work when using OpenGL at Intel
                    video and linux-4.16
           Product: kwin
           Version: 5.8.9
          Platform: Ubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: compositing
          Assignee: kwin-bugs-n...@kde.org
          Reporter: helio.loure...@gmail.com
  Target Milestone: ---

After I moved to linux-4.16, transparent windows stopped working.  They do work
on Xrender, but it ends effects like the cube transition between different
virtual desktops.

So applications like yakuake (dropdown shell) don't work.

It could be something I just did wrong in my system.

I run with my own compiled kernel, Ubuntu 16.04, Xorg-edgers ppa and Kubuntu
ppa also.

My settings:

glxinfo | grep -i render
direct rendering: Yes
    GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer, 
    GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer, 
Extended renderer info (GLX_MESA_query_renderer):
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 5500 (Broadwell GT2) 
    GL_ARB_compute_shader, GL_ARB_conditional_render_inverted, 
    GL_MESA_texture_signed_rgba, GL_NV_conditional_render, GL_NV_depth_clamp, 
    GL_ARB_compute_shader, GL_ARB_conditional_render_inverted, 
    GL_NV_conditional_render, GL_NV_depth_clamp, GL_NV_light_max_exponent, 
    GL_OES_element_index_uint, GL_OES_fbo_render_mipmap,

grep -i intel /var/log/Xorg.0.log
[302069.922] (==) Matched intel as autoconfigured driver 0
[302069.922] (==) Matched intel as autoconfigured driver 1
[302069.922] (II) LoadModule: "intel"
[302069.923] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
[302069.924] (II) Module intel: vendor="X.Org Foundation"
[302069.928] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets:
[302069.928] (II) intel: Driver for Intel(R) HD Graphics
[302069.928] (II) intel: Driver for Intel(R) Iris(TM) Graphics
[302069.928] (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics
[302069.951] (II) intel(0): Using Kernel Mode Setting driver: i915, version
1.6.0 20171222
[302069.951] (II) intel(0): SNA compiled: xserver-xorg-video-intel
2:2.99.917+git20170208.e4fe79cf-0ubuntu0ricotz~xenial (Rico Tzschichholz
<ric...@ubuntu.com>)
[302069.951] (II) intel(0): SNA compiled for use with valgrind
[302069.965] (--) intel(0): Integrated Graphics Chipset: Intel(R) HD Graphics
5500
[302069.965] (--) intel(0): CPU: x86-64, sse2, sse3, ssse3, sse4.1, sse4.2,
avx, avx2; using a maximum of 2 threads
[302069.965] (II) intel(0): Creating default Display subsection in Screen
section
[302069.965] (==) intel(0): Depth 24, (--) framebuffer bpp 32
[302069.965] (==) intel(0): RGB weight 888
[302069.965] (==) intel(0): Default visual is TrueColor
[302069.966] (II) intel(0): Output eDP1 has no monitor section
[302069.972] (**) intel(0): Found backlight control interface intel_backlight
(type 'raw') for output eDP1
[302069.972] (II) intel(0): Enabled output eDP1
[302069.972] (II) intel(0): Output DP1 has no monitor section
[302069.972] (II) intel(0): Enabled output DP1
[302069.972] (II) intel(0): Output HDMI1 has no monitor section
[302069.972] (II) intel(0): Enabled output HDMI1
[302069.972] (--) intel(0): Using a maximum size of 256x256 for hardware
cursors
[302069.972] (II) intel(0): Output VIRTUAL1 has no monitor section
[302069.972] (II) intel(0): Enabled output VIRTUAL1
[302069.972] (--) intel(0): Output eDP1 using initial mode 1920x1080 on pipe 0
[302069.972] (--) intel(0): Output HDMI1 using initial mode 1920x1200 on pipe 1
[302069.974] (==) intel(0): TearFree enabled
[302069.974] (==) intel(0): DPI set to (96, 96)
[302069.977] (II) intel(0): SNA initialized with Broadwell (gen8) backend
[302069.977] (==) intel(0): Backing store enabled
[302069.977] (==) intel(0): Silken mouse enabled
[302069.977] (II) intel(0): HW Cursor enabled
[302069.977] (II) intel(0): RandR 1.2 enabled, ignore the following RandR
disabled message.
[302069.977] (==) intel(0): DPMS enabled
[302069.977] (==) intel(0): Display hotplug detection enabled
[302069.979] (II) intel(0): [DRI2] Setup complete
[302069.979] (II) intel(0): [DRI2]   DRI driver: i965
[302069.979] (II) intel(0): [DRI2]   VDPAU driver: va_gl
[302069.979] (II) intel(0): direct rendering: DRI2 enabled
[302069.979] (II) intel(0): hardware support for Present enabled
[302070.007] (II) AIGLX: enabled GLX_INTEL_swap_event
[302070.015] (II) intel(0): switch to mode 1920x1080@60.0 on eDP1 using pipe 0,
position (0, 0), rotation normal, reflection none
[302070.017] (II) intel(0): switch to mode 1920x1200@60.0 on HDMI1 using pipe
1, position (0, 0), rotation normal, reflection none
[302070.023] (II) intel(0): Setting screen physical size to 508 x 317
[302070.157] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=3
(/dev/input/event10)
[302070.158] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=7
(/dev/input/event11)
[302070.158] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=8
(/dev/input/event12)
[302070.159] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=9
(/dev/input/event13)
[302070.160] (II) config/udev: Adding input device HDA Intel HDMI
HDMI/DP,pcm=10 (/dev/input/event14)
[302070.220] (II) config/udev: Adding input device HDA Intel PCH Headphone Mic
(/dev/input/event16)
[302071.976] (II) intel(0): EDID vendor "SHP", prod id 5152
[302071.976] (II) intel(0): Printing DDC gathered Modelines:
[302071.976] (II) intel(0): Modeline "1920x1080"x0.0  138.50  1920 1968 2000
2080  1080 1083 1088 1111 -hsync -vsync (66.6 kHz eP)
[302076.123] (II) intel(0): resizing framebuffer to 3840x1200
[302076.202] (II) intel(0): switch to mode 1920x1080@59.9 on eDP1 using pipe 0,
position (0, 0), rotation normal, reflection none
[302077.387] (II) intel(0): switch to mode 1920x1200@60.0 on HDMI1 using pipe
1, position (1920, 0), rotation normal, reflection none

$ vainfo 
libva info: VA-API version 0.39.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_39
libva info: va_openDriver() returns 0
vainfo: VA-API version: 0.39 (libva 1.7.0)
vainfo: Driver version: Intel i965 driver for Intel(R) Broadwell - 1.7.0
vainfo: Supported profile and entrypoints
      VAProfileMPEG2Simple            : VAEntrypointVLD
      VAProfileMPEG2Simple            : VAEntrypointEncSlice
      VAProfileMPEG2Main              : VAEntrypointVLD
      VAProfileMPEG2Main              : VAEntrypointEncSlice
      VAProfileH264ConstrainedBaseline: VAEntrypointVLD
      VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
      VAProfileH264Main               : VAEntrypointVLD
      VAProfileH264Main               : VAEntrypointEncSlice
      VAProfileH264High               : VAEntrypointVLD
      VAProfileH264High               : VAEntrypointEncSlice
      VAProfileH264MultiviewHigh      : VAEntrypointVLD
      VAProfileH264MultiviewHigh      : VAEntrypointEncSlice
      VAProfileH264StereoHigh         : VAEntrypointVLD
      VAProfileH264StereoHigh         : VAEntrypointEncSlice
      VAProfileVC1Simple              : VAEntrypointVLD
      VAProfileVC1Main                : VAEntrypointVLD
      VAProfileVC1Advanced            : VAEntrypointVLD
      VAProfileNone                   : VAEntrypointVideoProc
      VAProfileJPEGBaseline           : VAEntrypointVLD
      VAProfileVP8Version0_3          : VAEntrypointVLD

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 16.04.4 LTS
Release:        16.04
Codename:       xenial

$ uname -a
Linux elxaf7qtt32 4.16.7-helio #40 SMP PREEMPT Mon May 7 12:40:27 CEST 2018
x86_64 x86_64 x86_64 GNU/Linux


$ dpkg -l | egrep "mesa|kde|xorg" | awk '{print $2"_"$3}'
apport-kde_2.20.1-0ubuntu2.17
apturl-kde_0.5.2ubuntu11.1
debconf-kde-data_1.0.2-0ubuntu1
kde-cli-tools_4:5.8.9-0ubuntu1~ubuntu16.04~ppa1
kde-cli-tools-data_4:5.8.9-0ubuntu1~ubuntu16.04~ppa1
kde-config-gtk-style_4:5.8.9-0ubuntu1~ubuntu16.04~ppa1
kde-config-gtk-style-preview_4:5.8.9-0ubuntu1~ubuntu16.04~ppa1
kde-config-mailtransport:amd64_16.04.3-0ubuntu1~ubuntu16.04~ppa61
kde-config-screenlocker_5.8.9-0ubuntu1~ubuntu16.04~ppa5
kde-config-sddm_4:5.8.9-0ubuntu1~ubuntu16.04~ppa1
kde-config-telepathy-accounts_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
kde-config-whoopsie_15.10ubuntu2
kde-runtime_4:16.04.3-0ubuntu2~ubuntu16.04~ppa61
kde-runtime-data_4:16.04.3-0ubuntu2~ubuntu16.04~ppa61
kde-spectacle_16.04.3-0ubuntu1~ubuntu16.04~ppa61
kde-style-breeze_4:5.8.9-0ubuntu1~ubuntu16.04~ppa1
kde-style-breeze-qt4_4:5.8.9-0ubuntu1~ubuntu16.04~ppa1
kde-style-oxygen-qt5_4:5.8.9-0ubuntu1~ubuntu16.04~ppa1
kde-style-qtcurve-qt4:amd64_1.8.18+git20160320-3d8622c-3~16.04~ppa1
kde-style-qtcurve-qt5:amd64_1.8.18+git20160320-3d8622c-3~16.04~ppa1
kde-telepathy_15.04.20ubuntu1
kde-telepathy-approver_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
kde-telepathy-auth-handler_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
kde-telepathy-contact-list_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
kde-telepathy-data_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
kde-telepathy-desktop-applets_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
kde-telepathy-filetransfer-handler_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
kde-telepathy-integration-module_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
kde-telepathy-kaccounts_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
kde-telepathy-kpeople_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
kde-telepathy-minimal_15.04.20ubuntu1
kde-telepathy-send-file_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
kde-telepathy-text-ui_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
kdeconnect_1.0.3-0ubuntu1~ubuntu16.04~ppa1
kdeconnect-plasma_1.0.3-0ubuntu1~ubuntu16.04~ppa1
kded5_5.36.0-0ubuntu1~ubuntu16.04~ppa1
kdegraphics-strigi-analyzer_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
kdelibs-bin_4:4.14.22-0ubuntu2.2~ubuntu16.04~ppa1
kdelibs5-data_4:4.14.22-0ubuntu2.2~ubuntu16.04~ppa1
kdelibs5-plugins_4:4.14.22-0ubuntu2.2~ubuntu16.04~ppa1
kdemultimedia-kio-plugins_4:16.04.3-0ubuntu2~ubuntu16.04~ppa62
kdenetwork-filesharing_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
kdenlive_4:16.04.3-0ubuntu1~ubuntu16.04~ppa62
kdenlive-data_4:16.04.3-0ubuntu1~ubuntu16.04~ppa62
kdepim-addons_16.04.3-1ubuntu1~ubuntu16.04~ppa62
kdepim-doc_4:16.04.3-0ubuntu2~ubuntu16.04~ppa63
kdepim-runtime_4:16.04.3-0ubuntu3~ubuntu16.04~ppa61
kdepim-themeeditors_4:16.04.3-0ubuntu2~ubuntu16.04~ppa63
kdepimlibs-data_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
kdepimlibs-kio-plugins_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
kdeplasma-addons-data_4:5.8.9-0ubuntu1~ubuntu16.04~ppa1
kdesudo_3.4.2.4+repack-2ubuntu4
kdevelop_4:5.1.1-0ubuntu1~ubuntu16.04~ppa2
kdevelop-data_4:5.1.1-0ubuntu1~ubuntu16.04~ppa2
kdevplatform10-libs_5.1.1-0ubuntu1~ubuntu16.04~ppa1
kf5-kdepim-apps-libs-data_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
libakonadi-kde4_4:4.14.10-1ubuntu2
libdebconf-kde1:amd64_1.0.2-0ubuntu1
libegl1-mesa:amd64_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
libegl1-mesa:i386_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
libegl1-mesa-dev:amd64_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
libgl1-mesa-dev:amd64_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
libgl1-mesa-dri:amd64_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
libgl1-mesa-dri:i386_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
libgl1-mesa-glx:amd64_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
libgl1-mesa-glx:i386_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
libglapi-mesa:amd64_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
libglapi-mesa:i386_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
libgles2-mesa:amd64_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
libgles2-mesa-dev:amd64_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
libglu1-mesa:amd64_9.0.0-2.1
libglu1-mesa:i386_9.0.0-2.1
libglu1-mesa-dev:amd64_9.0.0-2.1
libkde3support4_4:4.14.22-0ubuntu2.2~ubuntu16.04~ppa1
libkdeclarative5_4:4.14.22-0ubuntu2.2~ubuntu16.04~ppa1
libkdecorations2-5v5_4:5.8.9-0ubuntu1~ubuntu16.04~ppa1
libkdecorations2private5v5_4:5.8.9-0ubuntu1~ubuntu16.04~ppa1
libkdecore5_4:4.14.22-0ubuntu2.2~ubuntu16.04~ppa1
libkdesu5_4:4.14.22-0ubuntu2.2~ubuntu16.04~ppa1
libkdeui5_4:4.14.22-0ubuntu2.2~ubuntu16.04~ppa1
libkdewebkit5_4:4.14.22-0ubuntu2.2~ubuntu16.04~ppa1
libkf5kdegames7_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
libkf5kdegamesprivate1_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
libkf5kdelibs4support-data_5.36.0-0ubuntu1~ubuntu16.04~ppa1
libkf5kdelibs4support5:amd64_5.36.0-0ubuntu1~ubuntu16.04~ppa1
libkf5kdelibs4support5-bin_5.36.0-0ubuntu1~ubuntu16.04~ppa1
libkf5kdepimdbusinterfaces5:amd64_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
libkf5kmanagesieve5:amd64_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
libkf5ksieve-data_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
libkf5ksieve5:amd64_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
libkf5ksieveui5:amd64_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
libkf5libkdepim-data_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
libkf5libkdepim-plugins:amd64_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
libkf5libkdepim5:amd64_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
libkf5su-bin_5.36.0-0ubuntu1~ubuntu16.04~ppa1
libkf5su-data_5.36.0-0ubuntu1~ubuntu16.04~ppa1
libosmesa6:amd64_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
libosmesa6:i386_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
libreoffice-kde_1:6.0.4~rc2-0ubuntu0.16.04.1
libreoffice-kde4_1:6.0.4~rc2-0ubuntu0.16.04.1
libwayland-egl1-mesa:amd64_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
libwayland-egl1-mesa:i386_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
mesa-common-dev:amd64_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
mesa-utils_8.3.0-1
mesa-vdpau-drivers:amd64_18.0.0~git20180214+18.0.1e173463-0ubuntu0ricotz~16.04.1
pkg-kde-tools_0.15.20~ubuntu4
plasma-look-and-feel-org-kde-breezedark-desktop_4:5.8.9-0ubuntu1~ubuntu16.04~ppa1
polkit-kde-agent-1_4:5.8.9-0ubuntu1~ubuntu16.04~ppa1
python3-pykde4_4:4.14.2-0ubuntu6
python3-xkit_0.5.0ubuntu2
qml-module-org-kde-activities:amd64_5.36.0-0ubuntu1~ubuntu16.04~ppa1
qml-module-org-kde-bluezqt:amd64_5.36.0-0ubuntu1~ubuntu16.04~ppa1
qml-module-org-kde-draganddrop:amd64_5.36.0-0ubuntu1~ubuntu16.04~ppa1
qml-module-org-kde-extensionplugin_5.36.0-0ubuntu1~ubuntu16.04~ppa1
qml-module-org-kde-kconfig:amd64_5.36.0-0ubuntu1~ubuntu16.04~ppa1
qml-module-org-kde-kcoreaddons:amd64_5.36.0-0ubuntu1~ubuntu16.04~ppa1
qml-module-org-kde-kholidays_16.04.3-0ubuntu1~ubuntu16.04~ppa61
qml-module-org-kde-kio:amd64_5.36.0-0ubuntu1~ubuntu16.04~ppa1
qml-module-org-kde-kirigami_1.1.0-1~ubuntu16.04~ppa2
qml-module-org-kde-kquickcontrols:amd64_5.36.0-0ubuntu1~ubuntu16.04~ppa1
qml-module-org-kde-kquickcontrolsaddons:amd64_5.36.0-0ubuntu1~ubuntu16.04~ppa1
qml-module-org-kde-kwindowsystem:amd64_5.36.0-0ubuntu1~ubuntu16.04~ppa1
qml-module-org-kde-newstuff_5.36.0-0ubuntu1~ubuntu16.04~ppa1
qml-module-org-kde-runnermodel_5.36.0-0ubuntu1~ubuntu16.04~ppa1
qml-module-org-kde-solid:amd64_5.36.0-0ubuntu1~ubuntu16.04~ppa1
qml-module-org-kde-telepathy_4:16.04.3-0ubuntu1~ubuntu16.04~ppa61
software-properties-kde_0.96.20.7
xorg_1:7.7+13ubuntu3
xorg-docs-core_1:1.7.1-1ubuntu1
xorg-sgml-doctools_1:1.11-1
xserver-xorg_1:7.7+13ubuntu3
xserver-xorg-core_2:1.18.4-0ubuntu0.7
xserver-xorg-input-all_1:7.7+13ubuntu3
xserver-xorg-input-evdev_1:2.10.1-1ubuntu2
xserver-xorg-input-synaptics_1.8.2-1ubuntu3
xserver-xorg-input-vmmouse_1:13.1.0-1ubuntu2
xserver-xorg-input-wacom_1:0.32.0-0ubuntu3
xserver-xorg-video-all_1:7.7+13ubuntu3
xserver-xorg-video-amdgpu_1.2.99+git20170208.49b09256-0ubuntu0ricotz~xenial
xserver-xorg-video-ati_1:7.8.99+git20170208.1351e48e-0ubuntu0ricotz2~xenial
xserver-xorg-video-fbdev_1:0.4.4-1build5
xserver-xorg-video-intel_2:2.99.917+git20170208.e4fe79cf-0ubuntu0ricotz~xenial
xserver-xorg-video-nouveau_1:1.0.13+git20170208.1516d35b-0ubuntu0ricotz~xenial
xserver-xorg-video-qxl_0.1.4-3ubuntu3
xserver-xorg-video-radeon_1:7.8.99+git20170208.1351e48e-0ubuntu0ricotz2~xenial
xserver-xorg-video-vesa_1:2.3.4-1build2
xserver-xorg-video-vmware_1:13.1.0-2ubuntu3

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