Console garbled when scrolling

Bug #333920 reported by Loïc Minier on 2009-02-24
This bug affects 1 person
Affects Status Importance Assigned to Milestone
kvm (Ubuntu)
Dustin Kirkland 

Bug Description


I'm surprized this bug wasn't already reported, perhaps I missed the dup; when ever I'm scrolling in the linux console of a kvm host, I get garbled output with letters in random places.

Will attach a screenshot of vi /var/log/syslog, before and after moving the cursor below the last displayed line.

This happens in aptitude, and sometimes even when doing things like "ifconfig" in the console, but not always.

It also happens when switching VTs.

Just doing a ^L is usually enough to clear the problem.


Related branches

Loïc Minier (lool) wrote :
Loïc Minier (lool) wrote :
Jamie Strandboge (jdstrand) wrote :

I see this too when going from X to a console. See attached screenshot.

Changed in kvm:
status: New → Confirmed
Dustin Kirkland  (kirkland) wrote :

And I can confirm too.

I'm just running kvm from the command line.

I do something simple, such as `cat /proc/cpuinfo` and after roughly the 10th time, my screen goes to garbage.

This happened while I was working with Anthony Liguori on Friday and he knew of the issue. I will take this up with upstream kvm.


Changed in kvm:
assignee: nobody → kirkland
importance: Undecided → High
milestone: none → jaunty-alpha-6
Changed in kvm:
status: Confirmed → In Progress
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package kvm - 1:84+dfsg-0ubuntu5

kvm (1:84+dfsg-0ubuntu5) jaunty; urgency=low

  * debian/patches/fix_screen_corruption: patch from upstream SVN (should
    be dropped in next merge), fixes LP: #336712, #333920
  * debian/patches: permanently removed all dropped patches

 -- Dustin Kirkland <email address hidden> Mon, 02 Mar 2009 09:15:26 -0600

Changed in kvm:
status: In Progress → Fix Released
Loïc Minier (lool) wrote :

Works like a charm, thanks.

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