diff --git a/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/qt-6.9.patch b/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/qt-6.9.patch
new file mode 100644
index 000000000000..c852a8ab833f
--- /dev/null
+++ b/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/qt-6.9.patch
@@ -0,0 +1,44 @@
+diff --git a/Telegram/SourceFiles/media/view/media_view_pip.cpp b/Telegram/SourceFiles/media/view/media_view_pip.cpp
+index 4e1d7c136..7c8f95888 100644
+--- a/Telegram/SourceFiles/media/view/media_view_pip.cpp
++++ b/Telegram/SourceFiles/media/view/media_view_pip.cpp
+@@ -362,6 +362,10 @@ void PipPanel::init() {
+ 	) | rpl::filter(rpl::mappers::_1) | rpl::start_with_next([=] {
+ 		// Workaround Qt's forced transient parent.
+ 		Ui::Platform::ClearTransientParent(widget());
++	}, rp()->lifetime());
++
++	rp()->shownValue(
++	) | rpl::filter(rpl::mappers::_1) | rpl::start_with_next([=] {
+ 		Ui::Platform::SetWindowMargins(widget(), _padding);
+ 	}, rp()->lifetime());
+ 
+Submodule Telegram/lib_base contains modified content
+diff --git a/Telegram/lib_base/base/platform/linux/base_linux_xdp_utilities.cpp b/Telegram/lib_base/base/platform/linux/base_linux_xdp_utilities.cpp
+index 8aca67c..6b781fb 100644
+--- a/Telegram/lib_base/base/platform/linux/base_linux_xdp_utilities.cpp
++++ b/Telegram/lib_base/base/platform/linux/base_linux_xdp_utilities.cpp
+@@ -16,7 +16,11 @@
+ #if QT_VERSION >= QT_VERSION_CHECK(6, 5, 0)
+ #include <qpa/qplatformintegration.h>
+ #include <private/qguiapplication_p.h>
++#if QT_VERSION >= QT_VERSION_CHECK(6, 9, 0)
++#include <private/qdesktopunixservices_p.h>
++#else // Qt >= 6.9.0
+ #include <private/qgenericunixservices_p.h>
++#endif // Qt < 6.9.0
+ #endif // Qt >= 6.5.0
+ 
+ #include <sstream>
+@@ -39,7 +43,10 @@ std::string ParentWindowID(QWindow *window) {
+ 	}
+ 
+ #if QT_VERSION >= QT_VERSION_CHECK(6, 5, 0)
+-	if (const auto services = dynamic_cast<QGenericUnixServices*>(
++#if QT_VERSION < QT_VERSION_CHECK(6, 9, 0)
++	using QDesktopUnixServices = QGenericUnixServices;
++#endif // Qt < 6.9.0
++	if (const auto services = dynamic_cast<QDesktopUnixServices*>(
+ 			QGuiApplicationPrivate::platformIntegration()->services())) {
+ 		return services->portalWindowIdentifier(window).toStdString();
+ 	}
diff --git a/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/unwrapped.nix b/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/unwrapped.nix
index b4ab76aebe29..d983f3a748c3 100644
--- a/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/unwrapped.nix
+++ b/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/unwrapped.nix
@@ -56,6 +56,14 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-E9d5jWw4HeCO4sqDB0tXXgxM91kg1Gixi9B0xZQYe14=";
   };
 
+  # Combined backport to fix Qt 6.9 issues:
+  # - https://github.com/telegramdesktop/tdesktop/commit/8b92ab25c776899c5432bf935447cac6f0b3ea2d
+  # - https://github.com/telegramdesktop/tdesktop/commit/c261c3367a11eeef69e6e346d339706dc4f00406
+  # FIXME: remove in next update
+  patches = [
+    ./qt-6.9.patch
+  ];
+
   postPatch = lib.optionalString stdenv.hostPlatform.isLinux ''
     substituteInPlace Telegram/ThirdParty/libtgvoip/os/linux/AudioInputALSA.cpp \
       --replace-fail '"libasound.so.2"' '"${lib.getLib alsa-lib}/lib/libasound.so.2"'