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[Bug 1495985] [NEW] Bug with qxl drm driver allows screen resolution on spice sessions only to be grown, but not shrinked

To: touch-packages@xxxxxxxxxxxxxxxxxxx
From: Luca Lorenzetto <lorenzetto.luca@xxxxxxxxx>
Date: Tue, 15 Sep 2015 13:54:32 -0000
Reply-to: Bug 1495985 <1495985@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Public bug reported:

Using on trusty the kernel provided by linux-image-generic-lts-vivid
(3.19.0) is affected by a bug on kernel's qxl drm driver.

When resizing the screen on a spice session, the screen gets resized
only when growing the screen, not when shrinking.

Bug on fedora: https://bugzilla.redhat.com/show_bug.cgi?id=1212201

Relevant Kernel commit:

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bd3e1c7c6de9f5f70d97cdb6c817151c0477c5e3

Downgrading to linux-image-generic-lts-utopic (3.16.0) solved the issue.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg (not installed)
ProcVersionSignature: Ubuntu 3.19.0-28.30~14.04.1-generic 3.19.8-ckt5
Uname: Linux 3.19.0-28-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.13
Architecture: amd64
CurrentDesktop: XFCE
Date: Tue Sep 15 13:19:13 2015
InstallationDate: Installed on 2014-11-27 (292 days ago)
InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140723)
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: linux-meta-lts-vivid (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug resolution trusty

** Summary changed:

- Bug with qxl drm driver allows screen on spice sessions only to be grown, but not shrinked
+ Bug with qxl drm driver allows screen resolution on spice sessions only to be grown, but not shrinked

** Package changed: xorg (Ubuntu) => linux-meta-lts-vivid (Ubuntu)

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https://bugs.launchpad.net/bugs/1495985

Title:
  Bug with qxl drm driver allows screen resolution on spice sessions
  only to be grown, but not shrinked

Status in linux-meta-lts-vivid package in Ubuntu:
  New

Bug description:
  Using on trusty the kernel provided by linux-image-generic-lts-vivid
  (3.19.0) is affected by a bug on kernel's qxl drm driver.

  When resizing the screen on a spice session, the screen gets resized
  only when growing the screen, not when shrinking.

  Bug on fedora: https://bugzilla.redhat.com/show_bug.cgi?id=1212201

  Relevant Kernel commit:

  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bd3e1c7c6de9f5f70d97cdb6c817151c0477c5e3

  Downgrading to linux-image-generic-lts-utopic (3.16.0) solved the
  issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xorg (not installed)
  ProcVersionSignature: Ubuntu 3.19.0-28.30~14.04.1-generic 3.19.8-ckt5
  Uname: Linux 3.19.0-28-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.13
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Tue Sep 15 13:19:13 2015
  InstallationDate: Installed on 2014-11-27 (292 days ago)
  InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140723)
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)

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