[OE-core] [PATCH 3/4] oeqa/qemurunner: pass nographic to runqemu if DISPLAY isn't set

[Ross Burton]

Not everyone wants to run the tests with a qemu that has a graphical output, so
allow display to be None and pass nographic to runqemu in that case.

Signed-off-by: Ross Burton <ross.burton at intel.com>
---
 meta/lib/oeqa/utils/qemurunner.py | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/meta/lib/oeqa/utils/qemurunner.py b/meta/lib/oeqa/utils/qemurunner.py
index e1c8ea1..def8ace 100644
--- a/meta/lib/oeqa/utils/qemurunner.py
+++ b/meta/lib/oeqa/utils/qemurunner.py
@@ -94,9 +94,9 @@ class QemuRunner:
     def start(self, qemuparams = None):
         if self.display:
             os.environ["DISPLAY"] = self.display
-        else:
-            logger.error("To start qemu I need a X desktop, please set DISPLAY correctly (e.g. DISPLAY=:1)")
-            return False
+            # Set this flag so that Qemu doesn't do any grabs as SDL grabs
+            # interact badly with screensavers.
+            os.environ["QEMU_DONT_GRAB"] = "1"
         if not os.path.exists(self.rootfs):
             logger.error("Invalid rootfs %s" % self.rootfs)
             return False
@@ -118,10 +118,10 @@ class QemuRunner:
             logger.error("Failed to create listening socket: %s" % msg[1])
             return False
 
-        # Set this flag so that Qemu doesn't do any grabs as SDL grabs interact
-        # badly with screensavers.
-        os.environ["QEMU_DONT_GRAB"] = "1"
+
         self.qemuparams = 'bootparams="console=tty1 console=ttyS0,115200n8 printk.time=1" qemuparams="-serial tcp:127.0.0.1:{}"'.format(threadport)
+        if not self.display:
+            self.qemuparams = 'nographic ' + self.qemuparams
         if qemuparams:
             self.qemuparams = self.qemuparams[:-1] + " " + qemuparams + " " + '\"'
 
-- 
2.1.4