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Message #135280
[Bug 1364078] Re: Cannot set screen resolution above 1400x1050
I had the same problem after switching from the xserver-xorg-video-ati
driver to fglrx and then back to xserver-xorg-video-ati after
experiencing a memory leak:
https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1354350
The problem was the fglrx package installs this file:
/etc/modprobe.d/fglrx-core.conf
Which includes this line:
blacklist radeon
Which blacklists the open source radeon driver. I removed
/etc/modprobe.d/fglrx-core.conf, rebooted, and my problem was fixed.
xrandr was able to see all available resolutions as well as it was able
to see multiple monitors.
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https://bugs.launchpad.net/bugs/1364078
Title:
Cannot set screen resolution above 1400x1050
Status in xserver-xorg-video-ati package in Ubuntu:
Confirmed
Bug description:
Since installing Ubuntu 14.04, I have not been able to adjust the display resolution to 1920x1080.
My current Ubntu version is Ubuntu 14.04.1 LTS.
My video card is an AMD/ATI RV710, which displayed at high resolution with Ubuntu 12.04.
The Ubuntu 14.04 open-source driver showed options between 640x400 and 1280x1024. I tried the proprietary driver, which set the resolution at 1400x1050 with no other options. I tried to remove the proprietary driver, but rebooting has me stuck at 1400x1050.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xfce4-settings 4.11.2-1ubuntu2
ProcVersionSignature: Ubuntu 3.13.0-35.62-lowlatency 3.13.11.6
Uname: Linux 3.13.0-35-lowlatency x86_64
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64
CurrentDesktop: XFCE
Date: Mon Sep 1 11:49:11 2014
ExecutablePath: /usr/bin/xfce4-settings-manager
InstallationDate: Installed on 2014-08-15 (17 days ago)
InstallationMedia: Ubuntu-Studio 12.04.5 "Precise Pangolin" - Release amd64 (20140807.1)
ProcEnviron:
LANGUAGE=en_US:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: xfce4-settings
UpgradeStatus: Upgraded to trusty on 2014-08-16 (16 days ago)
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