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NV-CONTROL version shows Unknown in the nvidia-settings UI, on a laptop with integrated GPU #116

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#117
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NV-CONTROL version shows Unknown in the nvidia-settings UI, on a laptop with integrated GPU#116
#117
@medicalwei

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@medicalwei
medicalwei
opened on Mar 25, 2025

We have an issue that NV-CONTROL version says Unknown in the UI for 550 and 570-open driver, when using laptop with Intel Integrated GPU and NVIDIA discrete GPU (where display is connected to the integrated)

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It seems likely the GUI is unable to get the string attribute NV_CTRL_STRING_NV_CONTROL_VERSION from 570-open X extension

nvidia-settings/src/gtk+-2.x/ctkserver.c

Lines 396 to 399 in f8d29d4

ret = NvCtrlGetStringAttribute(ctrl_target,
NV_CTRL_STRING_NV_CONTROL_VERSION,
&nv_control_server_version);
if (ret != NvCtrlSuccess) nv_control_server_version = NULL;

Meanwhile the version can be displayed properly using nv-control-info in the provided sample code, since it queries major and minor version directly.

nvidia-settings/samples/nv-control-info.c

Line 395 in f8d29d4

ret = XNVCTRLQueryVersion(dpy, &major, &minor);

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