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X11: Narrow criteria for disabling RandR

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Fixes #972.
This commit is contained in:
Camilla Löwy 2017-03-19 05:30:27 +01:00
parent cf2eab5b4e
commit 5fe4dfb511
3 changed files with 9 additions and 18 deletions
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1
README.md
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@ -172,6 +172,7 @@ information on what to include when reporting a bug.
- [X11] Bugfix: Dynamic X11 library loading did not use full sonames (#941)
- [X11] Bugfix: Window creation on 64-bit would read past top of stack (#951)
- [X11] Bugfix: XDND support had multiple non-conformance issues (#968)
- [X11] Bugfix: The RandR monitor path was disabled despite working RandR (#972)
- [Linux] Bugfix: Event processing did not detect joystick disconnection (#932)
- [Cocoa] Added support for Vulkan window surface creation via
[MoltenVK](https://moltengl.com/moltenvk/) (#870)

19
src/x11_init.c
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@ -530,26 +530,23 @@ static GLFWbool initExtensions(void)
if (!sr->ncrtc || !XRRGetCrtcGammaSize(_glfw.x11.display, sr->crtcs[0]))
{
// This is either a headless system or an older Nvidia binary driver
// with broken gamma support
// Flag it as useless and fall back to Xf86VidMode gamma, if
// available
_glfwInputError(GLFW_PLATFORM_ERROR,
"X11: Detected broken RandR gamma ramp support");
// This is likely an older Nvidia driver with broken gamma support
// Flag it as useless and fall back to xf86vm gamma, if available
_glfw.x11.randr.gammaBroken = GLFW_TRUE;
}
if (!sr->ncrtc || !sr->noutput || !sr->nmode)
if (!sr->ncrtc)
{
// This is either a headless system or broken Cygwin/X RandR
// Flag it as useless and fall back to Xlib display functions
_glfwInputError(GLFW_PLATFORM_ERROR,
"X11: Detected broken RandR monitor support");
// A system without CRTCs is likely a system with broken RandR
// Disable the RandR monitor path and fall back to core functions
_glfw.x11.randr.monitorBroken = GLFW_TRUE;
}
XRRFreeScreenResources(sr);
}
if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
{
XRRSelectInput(_glfw.x11.display, _glfw.x11.root,
RROutputChangeNotifyMask);
}

7
src/x11_monitor.c
View File

@ -202,13 +202,6 @@ void _glfwPollMonitorsX11(void)
}
free(disconnected);
if (!_glfw.monitorCount)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"X11: RandR monitor support seems broken");
_glfw.x11.randr.monitorBroken = GLFW_TRUE;
}
}
if (!_glfw.monitorCount)