I'm using a two-monitor setup with an ati graphics card (Mobility Radeon HD 4300) on my laptop(lenovo u450p).
The Laptop screen has a hardware resolution of 1366x768, the external monitor a hardware resolution of 1920x1080.
1) the left 1366x768 area to be on the laptop screen, and
2) the right 1920x768 area to be on the big monitor.
But I observe:
1) happens as expected
2) happens almost. instead, the 2 rightmost pixels on the laptop monitor are repeated on the left border of the big monitor(filled with black to the bottom), in turn the two rightmost columns of the virtual display area are not visible on any monitor at all.
If I switch the laptop monitor resolution to 1280x720, this effect does not occur, and - except for the then blurred laptop screen - everything works as expected.
A screenshot shows the whole virtual desktop correctly.
Ubuntu version: 10.10 (maverick)
graphics card:
01:00.0 VGA compatible controller: ATI Technologies Inc M92 LP [Mobility Radeon HD 4300 Series]
xorg version: 1:7.5+6ubuntu3
I'm using the 'radeon' display driver, as detected by default. fglrx is not installed.
using kde 4.5.3
Binary package hint: xorg
I'm using a two-monitor setup with an ati graphics card (Mobility Radeon HD 4300) on my laptop(lenovo u450p).
The Laptop screen has a hardware resolution of 1366x768, the external monitor a hardware resolution of 1920x1080.
If I set up the second monitor using
xrandr --output HDMI-0 --off
xrandr --output LVDS --auto
xrandr --output HDMI-0 --auto --right-of LVDS
(or the kde gui, the effects are equal)
I expect
1) the left 1366x768 area to be on the laptop screen, and
2) the right 1920x768 area to be on the big monitor.
But I observe:
1) happens as expected
2) happens almost. instead, the 2 rightmost pixels on the laptop monitor are repeated on the left border of the big monitor(filled with black to the bottom), in turn the two rightmost columns of the virtual display area are not visible on any monitor at all.
If I switch the laptop monitor resolution to 1280x720, this effect does not occur, and - except for the then blurred laptop screen - everything works as expected.
A screenshot shows the whole virtual desktop correctly.
Ubuntu version: 10.10 (maverick)
graphics card:
01:00.0 VGA compatible controller: ATI Technologies Inc M92 LP [Mobility Radeon HD 4300 Series]
xorg version: 1:7.5+6ubuntu3
I'm using the 'radeon' display driver, as detected by default. fglrx is not installed.
using kde 4.5.3
ProblemType: Bug ature: Ubuntu 2.6.35- 22.35-generic 2.6.35.4 HDMI_Type_ A.1: //wAEafokAQEBAR AUAQOANB14Lu7Vp VVImyYSUFS/ 74DRwLMAqUCVAJB AgYCBQHFPAjqAGH E4LUBYLEUACSUhA AAeAAAA/ wBBNExNSVowNzIy MDcKAAAA/ QAySx5TEwAKICAg ICAgAAAA/ ABBU1VTIFZIMjQy CiAgAW0CAyXxUpA FBAMCBwYPDh8UHh 0TEhEWASMJfweDA QAAZQMMABAAAjqA GHE4LUBYLEUACSU hAAAeAR2AGHEcFi BYLCUACSUhAACeA R0AclHQHiBuKFUA CSUhAAAeAjqA0HI 4LUAQLEWACSUhAA AejArQiiDgLRAQP pYACSUhAAAYVw= = //wAGrzwiAAAAAA ATAQOAHxF4Cpf1m 1lUjCUiUFQAAAAB AQEBAQEBAQEBAQE BAQEBEhtWRlAAIz AmFjYANa0QAAAYD BJWRlAAIzAmFjYA Na0QAAAYAAAA/ gBBVU8KICAgICAg ICAgAAAA/ gBCMTQwWFcwMiBW MiAKAMk= /boot/vmlinuz- 2.6.35- 22-generic root=UUID= 7965020f- a640-4958- 8bea-09eb9aaa31 a3 ro asset.tag: No Asset Tag version: N/A bvr22CN35WW( V2.02): bd01/20/ 2010:svnLENOVO: pn3389: pvrLenovoIdeaPa dU450p: rvnLENOVO: rnNITU1: rvrREFERENCE: cvnNoEnclosure: ct10:cvrN/ A: version: Lenovo IdeaPad U450p
DistroRelease: Ubuntu 10.10
Package: xorg 1:7.5+6ubuntu3
ProcVersionSign
Uname: Linux 2.6.35-22-generic x86_64
Architecture: amd64
DRM.card0.
status: connected
enabled: enabled
dpms: On
modes: 1920x1080 1920x1080 1600x1200 1680x1050 1400x1050 1280x1024 1280x1024 1440x900 1280x960 1152x864 1280x720 1024x768 1024x768 1024x768 832x624 800x600 800x600 800x600 800x600 720x480 640x480 640x480 640x480 640x480 720x400
edid-base64: AP/////
DRM.card0.LVDS.1:
status: connected
enabled: enabled
dpms: On
modes: 1366x768 1366x768 1280x720 1152x768 1024x768 800x600 848x480 720x480 640x480
edid-base64: AP/////
DRM.card0.VGA.1:
status: disconnected
enabled: disabled
dpms: Off
modes:
edid-base64:
Date: Tue Nov 23 20:11:52 2010
InstallationMedia: Kubuntu 10.10 "Maverick Meerkat" - Release Candidate amd64 (20100928.3)
MachineType: LENOVO 3389
ProcCmdLine: BOOT_IMAGE=
ProcEnviron:
LANGUAGE=
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: xorg
dmi.bios.date: 01/20/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 22CN35WW(V2.02)
dmi.board.name: NITU1
dmi.board.vendor: LENOVO
dmi.board.version: REFERENCE
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: No Enclosure
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.name: 3389
dmi.product.
dmi.sys.vendor: LENOVO
peripherals:
system:
distro: Ubuntu
codename: maverick
architecture: x86_64
kernel: 2.6.35-22-generic