** Tags added: needs-trusty-test
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https://bugs.launchpad.net/bugs/625220
Title:
1002:7145 [Lenovo ThinkPad T60] Desktop size and monitor disconnect
not handled gracefully via Radeon Mobility X1400
Status in “xserver-xorg-video-ati” package in Ubuntu:
Incomplete
Bug description:
Binary package hint: xorg
I've been trying Maverick daily build from Aug 26, 2010, in both the
Ubuntu and Kubuntu variants. My laptop (a Thinkpad T60) has a
1400x1050 screen (4:3), and I've also been plugging in an external
Monitor (Dell S2409W) with 1920x1080 resolution (16:9). Here is a
reasonably comprehensive report on the display switching situation,
which overall is showing signs of considerable improvement but needs a
bit more love (see particularly points #5 and #6 below):
1. Booting with external monitor connected: works in both (this fixes
bug #570011 for me; I verified that the "drm" kernel module was loaded
and no errors appeared in the dmesg)
2. Booting with just the laptop, and then plugging in the monitor and
switching resolution: works in Kubuntu, not tested in Ubuntu, but I
presume this works fine.
3. Setting resolution after plugging in external monitor: works in
both, although only Kubuntu readily supports my preferred
configuration (cloning the display but using the native resolution on
both screens; I use this because at work I connect my laptop via a
docking station on a shelf above my desk). In Ubuntu, if I check "same
image in all monitors" then I have to use the same resolution in all
monitors, which is the lower 1024x768 or 1280xsomething (don't
remember now). Kubuntu lets me use 1920x1080 on the external monitor
while using 1400x1050 on the laptop, and making one a clone
(incomplete, of course) of the other.
4. Auto-detection that a new monitor has been plugged in, and asking
the user if he/she wants to configure the display: works in Kubuntu,
does not work in Ubuntu (is it supposed to?)
5. Auto-detection that a monitor has been disconnected, and asking the
user if he/she wants to configure the display: does not work in
either. In Kubuntu there is the extra amusement that manually
configuring suddenly causes the automatic system to realize something
has happened. In other words, if I manually navigate to the
systemsettings->Display and Monitor, once I click the Display icon it
(1) gives me the display configuration window, and (2) also pops up
the dialog that should have popped up when I disconnected the monitor.
If I say I want to configure it, then I get a second window
(essentially copies of each other) for doing the configuration; if I
click Ignore, then just one opens. (This bug is also present in
Lucid.)
6. Changing desktop size after a monitor disconnect: In Ubuntu, before
I run the configuration dialog, the desktop is the same as before I
disconnected the monitor (meaning that there is a whole virtual
desktop to which my mouse can move, windows are located, etc, but
which I cannot see). However, once I run the dialog it resizes the
display AND the desktop, providing me with the experience I expect
when running with the laptop alone. In Kubuntu, the situation is
different: if I start out running in the mode where each display is
running at its maximum resolution, the desktop is naturally the larger
of the two. If I then disconnect the monitor, and go to the
configuration dialog, then here is the problem: it knows the display
is already 1400x1050, and so the Apply button is grayed out. However,
the desktop size is 1920x1080, and there is no user-visible way to fix
that. Configuring a lower-resolution display does _not_ change the
desktop size, there are still windows over the edge and my mouse can
navigate off-screen. (What I usually do is run "xrandr --auto" from
the command line.)
7. I have not yet had a chance to test whether bug #476357, triggered
when I switch back and forth between two different external monitors
at work and home, is finally fixed (it is still broken in Lucid). This
bug definitely counts as the most serious issue of all, because it
requires an X restart, which is sufficiently annoying that it
discourages me from switching between monitors. I will test when I get
a chance.
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: xorg 1:7.5+6ubuntu3
ProcVersionSignature: Ubuntu 2.6.35-19.25-generic 2.6.35.3
Uname: Linux 2.6.35-19-generic i686
Architecture: i386
DRM.card0.LVDS.1:
status: connected
enabled: enabled
dpms: On
modes: 1400x1050 1400x1050 1280x1024 1280x1024 1280x960 1280x854 1280x800
1280x720 1152x768 1024x768 1024x768 800x600 800x600 848x480 720x480 640x480
640x480
edid-base64:
AP///////wAwriJAAAAAAAAPAQOAHBV46q9AlVZKjyUgUFQhCACBgAEBAQEBAQEBAQEBAQEBMCp4IFEaEEAwcBMAHdYQAAAZJSN4IFEaEEAwcBMAHdYQAAAZAAAADwCQQzKQQygPAQAJ5QAAAAAA/gBIVDE0UDEyLTEwMAogAD8=
DRM.card0.VGA.1:
status: disconnected
enabled: disabled
dpms: Off
modes:
edid-base64:
Date: Fri Aug 27 09:25:48 2010
GdmLog: Error: command ['kdesudo', '--', 'cat', '/var/log/gdm/:0.log'] failed
with exit code 1: cat: /var/log/gdm/:0.log: No such file or directory
GdmLog1: Error: command ['kdesudo', '--', 'cat', '/var/log/gdm/:0.log.1']
failed with exit code 1: cat: /var/log/gdm/:0.log.1: No such file or directory
GdmLog2: Error: command ['kdesudo', '--', 'cat', '/var/log/gdm/:0.log.2']
failed with exit code 1: cat: /var/log/gdm/:0.log.2: No such file or directory
LiveMediaBuild: Kubuntu 10.10 "Maverick Meerkat" - Alpha i386 (20100826)
MachineType: LENOVO 2623D7U
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcCmdLine: file=/cdrom/preseed/khostname.seed boot=casper maybe-ubiquity
initrd=/casper/initrd.lz quiet splash --
ProcEnviron:
LANGUAGE=
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: xorg
dmi.bios.date: 04/18/2006
dmi.bios.vendor: LENOVO
dmi.bios.version: 79ET60WW (1.05a)
dmi.board.name: 2623D7U
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr79ET60WW(1.05a):bd04/18/2006:svnLENOVO:pn2623D7U:pvrThinkPadT60:rvnLENOVO:rn2623D7U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2623D7U
dmi.product.version: ThinkPad T60
dmi.sys.vendor: LENOVO
glxinfo: Error: [Errno 2] No such file or directory
peripherals: Error: [Errno 2] No such file or directory
system:
distro: Ubuntu
codename: maverick
architecture: i686
kernel: 2.6.35-19-generic
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