Hi all,

Kaffeine plays the videos but all I see is a green screen. The audio is normal.
Searching the Web, I found that the problem is due to the use of graphics acceleration. I found some solutions to disable it, but none of them worked.
Can anyone help me with this?

Thanks.


Some infos:

Kaffeine 2.0.18

Libraries
- KDE Frameworks 5.78.0
- Qt 5.15.2 (built against 5.15.2)

Code: Select all

lsb_release -a

Code: Select all

No LSB modules are available.
Distributor ID:   Debian
Description:   Debian GNU/Linux 11 (bullseye)
Release:   11
Codename:   bullseye


Code: Select all

inxi -Fz

Code: Select all

System:    Kernel: 5.10.0-17-amd64 x86_64 bits: 64 Desktop: KDE Plasma 5.20.5 Distro: Debian GNU/Linux 11 (bullseye)
Machine:   Type: Desktop System: ASUS product: N/A v: N/A serial: <filter>
           Mobo: ASUSTeK model: TUF GAMING Z590-PLUS WIFI v: Rev 1.xx serial: <filter> UEFI: American Megatrends v: 1203
           date: 10/27/2021
CPU:       Info: 8-Core model: 11th Gen Intel Core i7-11700K bits: 64 type: MT MCP L2 cache: 16 MiB
           Speed: 801 MHz min/max: 800/4900 MHz Core speeds (MHz): 1: 801 2: 800 3: 801 4: 800 5: 801 6: 800 7: 800 8: 800
           9: 801 10: 800 11: 800 12: 800 13: 800 14: 1744 15: 801 16: 801
Graphics:  Device-1: Intel driver: i915 v: kernel
           Display: x11 server: X.Org 1.20.11 driver: loaded: modesetting unloaded: fbdev,vesa resolution: 1920x1080~60Hz
           OpenGL: renderer: Mesa Intel Graphics (RKL GT1) v: 4.6 Mesa 20.3.5
Audio:     Device-1: Intel driver: snd_hda_intel
           Device-2: Logitech HD Webcam C525 type: USB driver: snd-usb-audio,uvcvideo
           Sound Server: ALSA v: k5.10.0-17-amd64
Network:   Device-1: Intel driver: iwlwifi
           IF: wlo1 state: down mac: <filter>
           Device-2: Intel Ethernet I225-V driver: igc
           IF: enp4s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
           IF-ID-1: docker0 state: down mac: <filter>
           IF-ID-2: vboxnet0 state: down mac: <filter>
Bluetooth: Device-1: Intel type: USB driver: btusb
           Report: ID: hci0 state: up running bt-v: 3.0 address: <filter>
Drives:    Local Storage: total: 3.18 TiB used: 1.15 TiB (36.3%)
           ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 970 EVO Plus 500GB size: 465.76 GiB
           ID-2: /dev/nvme1n1 vendor: Samsung model: SSD 970 EVO Plus 1TB size: 931.51 GiB
           ID-3: /dev/sda vendor: Western Digital model: WD2002FAEX-007BA0 size: 1.82 TiB
Partition: ID-1: / size: 227.23 GiB used: 66.72 GiB (29.4%) fs: ext4 dev: /dev/nvme0n1p5
           ID-2: /boot/efi size: 96 MiB used: 29.8 MiB (31.1%) fs: vfat dev: /dev/nvme0n1p1
Swap:      ID-1: swap-1 type: partition size: 976 MiB used: 0 KiB (0.0%) dev: /dev/nvme0n1p6
Sensors:   System Temperatures: cpu: 27.8 C mobo: N/A
           Fan Speeds (RPM): N/A
Info:      Processes: 385 Uptime: 5h 35m Memory: 31.13 GiB used: 8.85 GiB (28.4%) Shell: Bash inxi: 3.3.01


Starting Kaffeine from console ...

Default settings

Code: Select all

16-08-22 16:12:43.014 [Warning ] QCommandLineParser: already having an option named "h"
16-08-22 16:12:43.014 [Warning ] QCommandLineParser: already having an option named "help-all"
16-08-22 16:12:43.014 [Warning ] QCommandLineParser: already having an option named "v"
16-08-22 16:12:43.145 [Info    ] kaffeine.dvb: Using built-in dvb device manager
16-08-22 16:12:43.223 [Info    ] kaffeine.dev: Found dvb device : Silicon Labs Si2168
16-08-22 16:12:48.424 [Critical] inotify_add_watch(/var/lib/samba/usershares) failed: (Permission denied)
16-08-22 16:12:51.200 [Warning ] qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 3429, resource id: 14982460, major code: 40 (TranslateCoords), minor code: 0
[00007f12b4003e40] gl gl: Initialized libplacebo v2.72.0 (API v72)
libva info: VA-API version 1.10.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_10
libva info: va_openDriver() returns 0
[00007f12d09752d0] avcodec decoder: Using Intel iHD driver for Intel(R) Gen Graphics - 21.1.1 () for hardware decoding


Settings > Configure Kaffeine > libVLC: --no-video-title-show -V xcb_glx

Code: Select all

16-08-22 16:15:16.918 [Warning ] QCommandLineParser: already having an option named "h"
16-08-22 16:15:16.918 [Warning ] QCommandLineParser: already having an option named "help-all"
16-08-22 16:15:16.918 [Warning ] QCommandLineParser: already having an option named "v"
16-08-22 16:15:17.051 [Info    ] kaffeine.dvb: Using built-in dvb device manager
16-08-22 16:15:17.130 [Info    ] kaffeine.dev: Found dvb device : Silicon Labs Si2168
[00007fcff0003a20] gl gl: Initialized libplacebo v2.72.0 (API v72)
libva info: VA-API version 1.10.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_10
libva info: va_openDriver() returns 0
[00007fd010975a20] avcodec decoder: Using Intel iHD driver for Intel(R) Gen Graphics - 21.1.1 () for hardware decoding
[00007fd010a80420] main decoder error: Timestamp conversion failed for 58305307: no reference clock
[00007fd010a80420] main decoder error: Could not convert timestamp 0 for faad
[h264 @ 0x7fd0109c42c0] get_buffer() failed
[h264 @ 0x7fd0109c42c0] thread_get_buffer() failed
[h264 @ 0x7fd0109c42c0] decode_slice_header error
[h264 @ 0x7fd0109c42c0] no frame!


Settings > Configure Kaffeine > libVLC: --no-video-title-show -V xcb_xv

Code: Select all

16-08-22 16:16:32.532 [Warning ] QCommandLineParser: already having an option named "h"
16-08-22 16:16:32.532 [Warning ] QCommandLineParser: already having an option named "help-all"
16-08-22 16:16:32.532 [Warning ] QCommandLineParser: already having an option named "v"
16-08-22 16:16:32.673 [Info    ] kaffeine.dvb: Using built-in dvb device manager
16-08-22 16:16:32.752 [Info    ] kaffeine.dev: Found dvb device : Silicon Labs Si2168
[00007fb834003a20] gl gl: Initialized libplacebo v2.72.0 (API v72)
libva info: VA-API version 1.10.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_10
libva info: va_openDriver() returns 0
[00007fb850974fa0] avcodec decoder: Using Intel iHD driver for Intel(R) Gen Graphics - 21.1.1 () for hardware decoding
[h264 @ 0x7fb8509c6d80] get_buffer() failed
[h264 @ 0x7fb8509c6d80] thread_get_buffer() failed
[h264 @ 0x7fb8509c6d80] decode_slice_header error
[h264 @ 0x7fb8509c6d80] no frame!


Unless you're using kvantum application style and kaffeine is not set to be ignored, it's more than likely a driver problem. If so, you'll have a green screen in most of video players. If you're by any chance running MX, check if you have the necessary codecs as well.

Kvantum theme isn't installed on my system.

No installed package have kvantum in the name.

Code: Select all

dpkg -l | grep -i kvantum

Yes, I have the same problem with VLC which I solved by working on its settings (*)
Dragon Player seems to have no problem in playing videos.
Right now my workaround is to just use VLC to watch TV on my PC but I would prefer to use Kaffeine: for TV is more user friendly.


(*) Tools > Preferences > Input / Codecs > Hardware Acceleration Decoding (OK with):
- VDPAU
- VA-API via DRM
- Disable


Thanks