[Bug 570897] [NEW] [rv200 kms] Picks wrong preferred mode - Garbled if changed

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Binary package hint: xserver-xorg-video-ati

On Lucid RC live cd.

When KMS enabled (it is by default)
Booting up results in my external 1680x1050 lcd monitor runs at 1152x864 mode.

My LCD is connected to dvi port of laptop. LVDS runs at mode 1400x1050.

running:
xrandr --output LVDS --off
xrandr --output DVI-0 --auto

result in LCD running correct resolution 1680x1050 but garbled and
totally unreadable.

Booting with radeon.modeset=0 solves this.

Conclusion: KMS problem.
--- 
Architecture: i386
CurrentDmesg:
 [   51.907181] psmouse serio2: ID: 10 00 64
 [   55.134908] IBM TrackPoint firmware: 0x0e, buttons: 3/3
 [   55.351681] input: TPPS/2 IBM TrackPoint as /devices/platform/i8042/serio1/serio2/input/input12
 [   60.788036] eth0: no IPv6 routers present
 [   60.870019] ttyS1: LSR safety check engaged!
DistroRelease: Ubuntu 10.04
DkmsStatus: Error: [Errno 2] No such file or directory
LiveMediaBuild: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427.1)
MachineType: IBM 2374ZEP
Package: xserver-xorg-video-ati 1:6.13.0-1ubuntu5
PackageArchitecture: i386
PccardctlIdent:
 Socket 0:
   no product info available
 Socket 1:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
 Socket 1:
   no card
ProcCmdLine: BOOT_IMAGE=/casper/vmlinuz noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash -- debian-installer/language=da console-setup/layoutcode?=dk
ProcEnviron:
 LANG=da_DK.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Tags: lucid lucid
Uname: Linux 2.6.32-21-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 07/27/2005
dmi.bios.vendor: IBM
dmi.bios.version: 1RETDLWW (3.17 )
dmi.board.name: 2374ZEP
dmi.board.vendor: IBM
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: IBM
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnIBM:bvr1RETDLWW(3.17):bd07/27/2005:svnIBM:pn2374ZEP:pvrThinkPadT42:rvnIBM:rn2374ZEP:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable:
dmi.product.name: 2374ZEP
dmi.product.version: ThinkPad T42
dmi.sys.vendor: IBM
glxinfo: Error: [Errno 2] No such file or directory
system:
 distro:             Ubuntu
 codename:           lucid
 architecture:       i686
 kernel:             2.6.32-21-generic

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: apport-collected lucid needs-lspci-vvnn needs-xorglog
-- 
[rv200 kms] Picks wrong preferred mode - Garbled if changed
https://bugs.edge.launchpad.net/bugs/570897
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