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From 282cb301f5961d6519bb5a295155f25f96421c85 Mon Sep 17 00:00:00 2001
From: Kai Li <likai@kylinos.cn>
Date: Wed, 5 Apr 2023 10:51:31 +0800
Subject: [PATCH] Some GPUs will report a virtual edid even there is no monitor
connected to the VGA/HDMI port, when a monitor is plugged in, the edid will
be updated. The old pattern is not working for some GPUs, because the edid is
already in the cache with wrong data.
So we clear edid when output changed, to make libkscreen to get the latest
edid and improve hardware compatibility.
Signed-off-by: likai <likai@kylinos.cn>
(cherry picked from commit f34ec78318aca50511ae062cd218ef20627132a6)
---
backends/xrandr/xrandroutput.cpp | 1 +
1 file changed, 1 insertion(+)
diff --git a/backends/xrandr/xrandroutput.cpp b/backends/xrandr/xrandroutput.cpp
index 2fce87a5..5a43b6f8 100644
--- a/backends/xrandr/xrandroutput.cpp
+++ b/backends/xrandr/xrandroutput.cpp
@@ -177,6 +177,7 @@ void XRandROutput::update(xcb_randr_crtc_t crtc, xcb_randr_mode_t mode, xcb_rand
}
m_hotplugModeUpdate = XRandR::hasProperty(m_id, "hotplug_mode_update");
+ m_edid.clear();
}
// A monitor has been enabled or disabled
--
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