You have been subscribed to a public bug:
Lenovo desktop model H415 does not see Viewsonic monitor VE710b except
for text mode.
The APU is AMD A6-3600 CPU combined with AMD Radeon HD 6530D GPU.
The following test boots were made:
- Ubuntu 12.04 beta 28-feb-2012 i386
- Ubuntu 12.04 beta 14-mar-2012 i386
- Ubuntu 12.04 beta 19-mar-2012 AMD64
All three fail to get graphics mode from monitor with message NO SIGNAL.
The i386 boots proceed as follows:
- BIOS welcome screen from Lenovo
- white text flashes by in upper left corner, cannot read it
- keyboard = man drawing appears at bottom
- get NO SIGNAL from monitor
- boot continues but cannot see it
The AMD64 boot proceeds as follows:
- BIOS welcome screen from Lenovo
- in the upper left corner, you get the following white text: error: prefix is
not set
- you then get GRUB screen version 1.99-17ubuntu1 with 3 options: try, install,
check disc
- select either try or install
- get NO SIGNAL from monitor
- boot continues but cannot see it
On an old HP Pentium 4 with ATI Radeon 9200 physical card, this
Viewsonic monitor is recognized with the i386 Ubuntu 12.04 beta from
28-feb-2012. The 2 others were not tested.
This bug submitted from another machine with Ubuntu 10.04.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: gedit 2.30.3-0ubuntu0.1
ProcVersionSignature: Ubuntu 2.6.32-39.86-generic 2.6.32.56+drm33.22
Uname: Linux 2.6.32-39-generic i686
Architecture: i386
Date: Mon Mar 19 22:17:31 2012
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: gedit
** Affects: gedit (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 lucid
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Lenovo H415 desktop AMD A6-3600 GPU not recognized
https://bugs.launchpad.net/bugs/959890
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