[Spice-devel] [spice-server] doc: Document G_MESSAGES_DEBUG use

[Christophe Fergeau]

Explain how to get more verbose logs out of spice-server

Signed-off-by: Christophe Fergeau <cfergeau at redhat.com>
---
 docs/manual/manual.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/docs/manual/manual.txt b/docs/manual/manual.txt
index 99f6a5c84..312df8c5c 100644
--- a/docs/manual/manual.txt
+++ b/docs/manual/manual.txt
@@ -1203,10 +1203,19 @@ Server side
 
 If the virtual machine was started using QEMU directly, SPICE server logs will be output to
 your console stdout.
+
 When using libvirt, logs are located in `/var/log/libvirt/qemu/` for the qemu
 system instance (`qemu:///system`), and in `~/.cache/libvirt/qemu/log` for the
 qemu session instance (`qemu:///session`).
 
+It's possible to get more verbose output by setting the `G_MESSAGES_DEBUG`
+environment variable to `Spice` or `all` before starting QEMU.
+
+When using libvirt, the environment variable needs to be set from the XML
+domain definition as described in
+https://libvirt.org/drvqemu.html#qemucommand[libvirt documentation].
+
+
 Client side
 -----------
 
-- 
2.20.1