[KRdp] [Bug 494715] RDP client sees a black screen when connecting to KRdp on an Nvidia device

Fri Jan 24 16:19:26 GMT 2025

https://bugs.kde.org/show_bug.cgi?id=494715

--- Comment #2 from John Kizer <john.kizer at proton.me> ---
Thanks for adding that - I see that as well, and for what it's worth, Remmina
now shows a solid white screen instead of a solid black screen, and the cursor
does respond (ex. text bar over text fields, resize arrows, etc.).

The system journal logs look a little different now, too - pasting below my
current ones from trying to use Remmina, and then KRDC:

Jan 24 11:11:08 g224-fedora krdpserver[2369]: libva info: VA-API version 1.22.0
Jan 24 11:11:08 g224-fedora krdpserver[2369]: libva info: Trying to open
/usr/lib64/dri-nonfree/nvidia_drv_video.so
Jan 24 11:11:08 g224-fedora krdpserver[2369]: libva info: Trying to open
/usr/lib64/dri-freeworld/nvidia_drv_video.so
Jan 24 11:11:08 g224-fedora krdpserver[2369]: libva info: Trying to open
/usr/lib64/dri/nvidia_drv_video.so
Jan 24 11:11:08 g224-fedora krdpserver[2369]: libva info: va_openDriver()
returns -1
Jan 24 11:11:08 g224-fedora krdpserver[2369]: kpipewire_vaapi_logging: VAAPI:
Failed to initialize display
Jan 24 11:11:08 g224-fedora krdpserver[2369]: kpipewire_vaapi_logging: DRM
device not found
Jan 24 11:11:12 g224-fedora krdpserver[2369]: [11:11:12:725] [2369:101707]
[WARN][com.winpr.negotiate] - AcceptSecurityContext status
SEC_I_CONTINUE_NEEDED [0x00090312]
Jan 24 11:11:12 g224-fedora krdpserver[2369]: [11:11:12:729] [2369:101707]
[WARN][com.winpr.negotiate] - AcceptSecurityContext status
SEC_I_COMPLETE_NEEDED [0x00090313]
Jan 24 11:11:12 g224-fedora krdpserver[2369]: org.kde.krdp: New client
connected:  UNIX platform Unspecified version
Jan 24 11:11:12 g224-fedora krdpserver[2369]: QObject: Cannot create children
for a parent that is in a different thread.
                                              (Parent is
QApplication(0x7ffd79a96ed0), parent's thread is QThread(0x559994e08f00),
current thread is QThread(0x7f07ac037790)
Jan 24 11:11:12 g224-fedora krdpserver[2369]: kpipewire_record_logging:
Hardware encoding is not supported on this device.
Jan 24 11:11:12 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a0302180]
-qscale is ignored, -crf is recommended.
Jan 24 11:11:12 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a0302180] using
cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
Jan 24 11:11:12 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a0302180]
profile Constrained Baseline, level 6.2, 4:2:0, 8-bit
Jan 24 11:11:12 g224-fedora krdpserver[2369]: kpipewire_dmabuf_logging:
eglChooseConfig returned this many configs: 1
Jan 24 11:11:17 g224-fedora krdpserver[2369]: QObject::killTimer: Timers cannot
be stopped from another thread
Jan 24 11:11:17 g224-fedora krdpserver[2369]: QObject::startTimer: Timers
cannot be started from another thread
Jan 24 11:11:28 g224-fedora krdpserver[2369]: org.kde.krdp: Portal session was
closed!
Jan 24 11:11:28 g224-fedora krdpserver[2369]: qt.qpa.wayland: Creating a fake
screen in order for Qt not to crash
Jan 24 11:11:28 g224-fedora krdpserver[2369]: [11:11:28:778] [2369:101707]
[ERROR][com.freerdp.core.transport] - BIO_read returned a system error 0:
Success
Jan 24 11:11:28 g224-fedora krdpserver[2369]: [11:11:28:778] [2369:101707]
[ERROR][com.freerdp.core] - transport_read_layer:freerdp_set_last_error_ex
ERRCONNECT_CONNECT_TRANSPORT_FAILED [0x0002000D]
Jan 24 11:11:28 g224-fedora krdpserver[2369]: QObject::~QObject: Timers cannot
be stopped from another thread
Jan 24 11:11:28 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a0302180] frame
I:1     Avg QP:20.00  size:246914
Jan 24 11:11:28 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a0302180] frame
P:98    Avg QP:17.60  size:  2984
Jan 24 11:11:28 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a0302180] mb I 
I16..4: 100.0%  0.0%  0.0%
Jan 24 11:11:28 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a0302180] mb P 
I16..4:  0.2%  0.0%  0.0%  P16..4:  5.7%  0.0%  0.0%  0.0%  0.0%    skip:94.1%
Jan 24 11:11:28 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a0302180] coded
y,uvDC,uvAC intra: 30.2% 42.4% 17.0% inter: 0.2% 5.3% 0.1%
Jan 24 11:11:28 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a0302180] i16
v,h,dc,p: 35% 41%  7% 17%
Jan 24 11:11:28 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a0302180] i8c
dc,h,v,p: 42% 36% 13%  9%
Jan 24 11:11:28 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a0302180]
kb/s:43584.08
Jan 24 11:11:44 g224-fedora krdpserver[2369]: [11:11:44:263] [2369:101788]
[WARN][com.winpr.negotiate] - AcceptSecurityContext status
SEC_I_CONTINUE_NEEDED [0x00090312]
Jan 24 11:11:44 g224-fedora krdpserver[2369]: [11:11:44:265] [2369:101788]
[WARN][com.winpr.negotiate] - AcceptSecurityContext status
SEC_I_COMPLETE_NEEDED [0x00090313]
Jan 24 11:11:44 g224-fedora krdpserver[2369]: org.kde.krdp: New client
connected:  UNIX platform Unspecified version
Jan 24 11:11:44 g224-fedora krdpserver[2369]: kpipewire_record_logging:
Hardware encoding is not supported on this device.
Jan 24 11:11:44 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07ac33ddc0]
-qscale is ignored, -crf is recommended.
Jan 24 11:11:44 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07ac33ddc0] using
cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
Jan 24 11:11:44 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07ac33ddc0]
profile Constrained Baseline, level 6.2, 4:2:0, 8-bit
Jan 24 11:11:44 g224-fedora krdpserver[2369]: kpipewire_dmabuf_logging:
eglChooseConfig returned this many configs: 1
Jan 24 11:11:45 g224-fedora krdpserver[2369]: QObject::killTimer: Timers cannot
be stopped from another thread
Jan 24 11:11:45 g224-fedora krdpserver[2369]: QObject::startTimer: Timers
cannot be started from another thread
Jan 24 11:12:19 g224-fedora krdpserver[2369]: QObject::killTimer: Timers cannot
be stopped from another thread
Jan 24 11:12:19 g224-fedora krdpserver[2369]: QObject::startTimer: Timers
cannot be started from another thread
Jan 24 11:12:24 g224-fedora krdpserver[2369]: [11:12:24:899] [2369:101788]
[ERROR][com.freerdp.core.transport] - BIO_read returned a system error 0:
Success
Jan 24 11:12:24 g224-fedora krdpserver[2369]: [11:12:24:899] [2369:101788]
[ERROR][com.freerdp.core] - transport_read_layer:freerdp_set_last_error_ex
ERRCONNECT_CONNECT_TRANSPORT_FAILED [0x0002000D]
Jan 24 11:12:24 g224-fedora krdpserver[2369]: QObject::~QObject: Timers cannot
be stopped from another thread
Jan 24 11:12:24 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07ac33ddc0] frame
I:4     Avg QP:17.00  size:328889
Jan 24 11:12:24 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07ac33ddc0] frame
P:329   Avg QP:18.00  size:  4162
Jan 24 11:12:24 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07ac33ddc0] mb I 
I16..4: 100.0%  0.0%  0.0%
Jan 24 11:12:24 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07ac33ddc0] mb P 
I16..4:  0.5%  0.0%  0.0%  P16..4:  4.2%  0.0%  0.0%  0.0%  0.0%    skip:95.3%
Jan 24 11:12:24 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07ac33ddc0] coded
y,uvDC,uvAC intra: 34.5% 40.8% 21.1% inter: 0.3% 3.9% 0.2%
Jan 24 11:12:24 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07ac33ddc0] i16
v,h,dc,p: 42% 38%  6% 14%
Jan 24 11:12:24 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07ac33ddc0] i8c
dc,h,v,p: 44% 32% 15%  9%
Jan 24 11:12:24 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07ac33ddc0]
kb/s:64503.42
Jan 24 11:13:13 g224-fedora krdpserver[2369]: [11:13:13:604] [2369:101856]
[WARN][com.winpr.negotiate] - AcceptSecurityContext status
SEC_I_CONTINUE_NEEDED [0x00090312]
Jan 24 11:13:13 g224-fedora krdpserver[2369]: [11:13:13:691] [2369:101856]
[WARN][com.winpr.negotiate] - AcceptSecurityContext status
SEC_I_COMPLETE_NEEDED [0x00090313]
Jan 24 11:13:14 g224-fedora krdpserver[2369]: org.kde.krdp: New client
connected:  UNIX platform Unspecified version
Jan 24 11:13:14 g224-fedora krdpserver[2369]: kpipewire_record_logging:
Hardware encoding is not supported on this device.
Jan 24 11:13:14 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a007b700]
-qscale is ignored, -crf is recommended.
Jan 24 11:13:14 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a007b700] using
cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
Jan 24 11:13:14 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a007b700]
profile Constrained Baseline, level 6.2, 4:2:0, 8-bit
Jan 24 11:13:14 g224-fedora krdpserver[2369]: kpipewire_dmabuf_logging:
eglChooseConfig returned this many configs: 1
Jan 24 11:13:15 g224-fedora krdpserver[2369]: QObject::killTimer: Timers cannot
be stopped from another thread
Jan 24 11:13:15 g224-fedora krdpserver[2369]: QObject::startTimer: Timers
cannot be started from another thread
Jan 24 11:13:16 g224-fedora krdpserver[2369]: QObject::killTimer: Timers cannot
be stopped from another thread
Jan 24 11:13:16 g224-fedora krdpserver[2369]: QObject::startTimer: Timers
cannot be started from another thread
Jan 24 11:13:17 g224-fedora krdpserver[2369]: QObject::killTimer: Timers cannot
be stopped from another thread
Jan 24 11:13:17 g224-fedora krdpserver[2369]: QObject::startTimer: Timers
cannot be started from another thread
Jan 24 11:13:20 g224-fedora krdpserver[2369]: QObject::killTimer: Timers cannot
be stopped from another thread
Jan 24 11:13:20 g224-fedora krdpserver[2369]: QObject::startTimer: Timers
cannot be started from another thread
Jan 24 11:13:27 g224-fedora krdpserver[2369]: QObject::killTimer: Timers cannot
be stopped from another thread
Jan 24 11:13:27 g224-fedora krdpserver[2369]: QObject::startTimer: Timers
cannot be started from another thread
Jan 24 11:13:33 g224-fedora krdpserver[2369]: QObject::killTimer: Timers cannot
be stopped from another thread
Jan 24 11:13:33 g224-fedora krdpserver[2369]: QObject::startTimer: Timers
cannot be started from another thread
Jan 24 11:14:02 g224-fedora krdpserver[2369]: [11:14:02:356] [2369:101856]
[ERROR][com.freerdp.core.transport] - BIO_read returned a system error 0:
Success
Jan 24 11:14:02 g224-fedora krdpserver[2369]: [11:14:02:356] [2369:101856]
[ERROR][com.freerdp.core] - transport_read_layer:freerdp_set_last_error_ex
ERRCONNECT_CONNECT_TRANSPORT_FAILED [0x0002000D]
Jan 24 11:14:02 g224-fedora krdpserver[2369]: QObject::~QObject: Timers cannot
be stopped from another thread
Jan 24 11:14:02 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a007b700] frame
I:3     Avg QP:18.00  size:356816
Jan 24 11:14:02 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a007b700] frame
P:251   Avg QP:19.99  size: 19679
Jan 24 11:14:02 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a007b700] mb I 
I16..4: 100.0%  0.0%  0.0%
Jan 24 11:14:02 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a007b700] mb P 
I16..4:  5.9%  0.0%  0.0%  P16..4:  7.5%  0.0%  0.0%  0.0%  0.0%    skip:86.5%
Jan 24 11:14:02 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a007b700] coded
y,uvDC,uvAC intra: 22.5% 23.6% 11.2% inter: 2.2% 5.1% 1.2%
Jan 24 11:14:02 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a007b700] i16
v,h,dc,p: 42% 45%  7%  7%
Jan 24 11:14:02 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a007b700] i8c
dc,h,v,p: 50% 33% 14%  4%
Jan 24 11:14:02 g224-fedora krdpserver[2369]: [libx264 @ 0x7f07a007b700]
kb/s:189284.88

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