Bug 75442

Summary:	weston-launch screws up console printouts
Product:	Wayland	Reporter:	Pekka Paalanen <ppaalanen>
Component:	weston	Assignee:	Wayland bug list <wayland-bugs>
Status:	RESOLVED NOTABUG	QA Contact:
Severity:	minor
Priority:	medium	CC:	andrew.e.7327
Version:	unspecified
Hardware:	All
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description Pekka Paalanen 2014-02-24 12:56:21 UTC

The easiest way to see the problem is to do on a VT:
$ weston-launch -- --help

I would expect that to print Weston's help text, but it seems to print one line of garbage in the middle of my bash prompt.

If I redirect stdout and stderr to a file, the file gets the correct printouts.

I assume weston-launch is changing the console modes such that printing gets scrambled. I wonder if this is even fixable. It also prevents seeing weston backtraces on the console if weston crashes.

Tested with the latest git revision.

Comment 1 Pekka Paalanen 2014-02-24 13:59:41 UTC

Thanks to mceier, a new hint:

$ clear; weston-launch -- --help

works just fine fine, although it does not print enough lines to trigger scrolling. So it's something about scrolling broken?

Comment 2 Kristian Høgsberg 2014-04-03 17:20:37 UTC

Once we switch the VT to KD_GRAPHICS mode, the console stops working.  X has the same problem if you start it with the -keeptty option.  To keep logs pipe stderr to a file.

Comment 3 Pekka Paalanen 2014-07-23 12:35:14 UTC

*** Bug 81311 has been marked as a duplicate of this bug. ***

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