Commit 8321453f authored by Nerdopolis Turfwalker's avatar Nerdopolis Turfwalker Committed by Martin Flöser
Browse files

fb_backend: use new udev function to detect framebuffer devices, if one is not set

Reviewers: #kwin, graesslin

Reviewed By: #kwin, graesslin

Subscribers: rkflx, graesslin, anthonyfieroni, kwin

Tags: #kwin

Differential Revision:
parent 3c745bb5
......@@ -24,6 +24,7 @@ along with this program. If not, see <>.
#include "scene_qpainter_fb_backend.h"
#include "screens.h"
#include "virtual_terminal.h"
#include "udev.h"
// system
#include <fcntl.h>
#include <unistd.h>
......@@ -81,13 +82,18 @@ void FramebufferBackend::init()
void FramebufferBackend::openFrameBuffer()
int fd = LogindIntegration::self()->takeDevice(deviceIdentifier().constData());
QString framebufferDevice = deviceIdentifier().constData();
if (framebufferDevice.isEmpty()) {
framebufferDevice = QString(Udev().primaryFramebuffer()->devNode());
int fd = LogindIntegration::self()->takeDevice(framebufferDevice.toUtf8().constData());
qCDebug(KWIN_FB) << "Using frame buffer device:" << framebufferDevice;
if (fd < 0) {
qCWarning(KWIN_FB) << "Failed to open frame buffer device through logind, trying without";
qCWarning(KWIN_FB) << "Failed to open frame buffer device:" << framebufferDevice << "through logind, trying without";
fd = open(deviceIdentifier().constData(), O_RDWR | O_CLOEXEC);
fd = open(framebufferDevice.toUtf8().constData(), O_RDWR | O_CLOEXEC);
if (fd < 0) {
qCWarning(KWIN_FB) << "failed to open frame buffer device";
qCWarning(KWIN_FB) << "failed to open frame buffer device:" << framebufferDevice;
emit initFailed();
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