bad resolution detected by xorg for a LCD monitor

[Berti]

After having upgraded from Warty to Hoary, the resolution used by the X server was
low (only 1024x768 for a 1280x1024 LCD monitor).

Before the upgrade XFree was correctly configured : Here is a part of the
XF86Config-4
Section "Screen"
        Identifier "Default Screen"
        Device "NVIDIA Corporation NV11DDR [GeForce2 MX 100 DDR/200 DDR
]"
        Monitor "L1715S"
        DefaultDepth 24
        SubSection "Display"
                Depth 1
                Modes "1280x1024" "1024x768" "800x600" "720x400" "640x
480"
        EndSubSection
...

After the installation of xorg, the configuration of the screen was limited to
1024x768 : part of xorg.conf
Section "Screen"
        Identifier "Default Screen"
        Device "NVIDIA Corporation NV11DDR [GeForce2 MX 100 DDR/200 DDR
]"
        Monitor "Écran générique"
        DefaultDepth 24
        SubSection "Display"
                Depth 1
                Modes "1024x768" "800x600" "640x480"
        EndSubSection
...

My monitor is a LCD LG Flatron L1715S. resolution upto 1280x1024 with a NVIDIA
Geforce graphic card

root@neptune:/home/berti # lspci
0000:00:00.0 Host bridge: Silicon Integrated Systems [SiS] 735 Host (rev 01)
0000:00:01.0 PCI bridge: Silicon Integrated Systems [SiS] Virtual PCI-to-PCI bridge
(AGP)
0000:00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS85C503/5513 (LPC Bridge)
0000:00:02.1 SMBus: Silicon Integrated Systems [SiS]: Unknown device 0016
0000:00:02.2 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev
07)
0000:00:02.3 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev
07)
0000:00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev d0)
0000:00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] Sound
Controller (rev a0)
0000:00:09.0 Ethernet controller: Atheros Communications, Inc. AR5212 802.11abg NIC
(rev 01)
0000:00:0b.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 06)
0000:00:0b.1 Input device controller: Creative Labs SB Live! MIDI/Game Port (rev 06)
0000:00:0d.0 USB Controller: NEC Corporation USB (rev 41)
0000:00:0d.1 USB Controller: NEC Corporation USB (rev 41)
0000:00:0d.2 USB Controller: NEC Corporation USB 2.0 (rev 02)
0000:00:0f.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
0000:00:11.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8029(AS)
0000:01:00.0 VGA compatible controller: nVidia Corporation NV11DDR [GeForce2 MX 100
DDR/200 DDR] (rev b2)

[Daniel Stone (daniels)]

Please send the output of sudo ddcprobe, and sudo xresprobe dummy.

[Berti (haut)]

Sorry for the delay, but I have forgotten this bug report. Apparently I don't
receive the mail from bugzilla to my email address <email address hidden>.
Because I don't remember my password, and when bugzilla send me a mail to change
the password I don't receive it, I'm using anoter email address.

I've just received a new PC (new motherboard, new processor, new graphic card)
but I've kept the same monitor. I've install ubuntu Hoary directly from the CD
and I got the same problem. The monitor was by default limited to 1024 instead
of 1280 and I had to manually launch dpkg-reconfigure fontconfig to enable the
subpixel rendering.

The new graphic card is an ATI
0000:01:00.0 VGA compatible controller: ATI Technologies Inc Radeon R350 [Radeon
9800 Pro]
0000:01:00.1 Display controller: ATI Technologies Inc Radeon R350 [Radeon 9800
Pro] (Secondary)

Here is the output of ddcprobe and xresprobe dummy :

root@neptune:/ # ddcprobe
VESA BIOS Extensions not detected.

root@neptune:/ # xresprobe dummy
id:
res:
freq:
disptype:

It seems a little empty....

[Daniel Stone (daniels)]

Please attach a full /var/log/Xorg.0.log also.

[Berti (haut)]

Created an attachment (id=1667)
the Xorg log file

[Berti (haut)]

(In reply to comment #3)
> Please attach a full /var/log/Xorg.0.log also.

It's done.

One little question : If the status of the BUG is NEEDINFO, have I to manually
change the status of the bug ? or is it done automaticaly ?

[Daniel Stone (daniels)]

Your LCD is reporting that it isn't an LCD -- it's telling us that it's an
analogue display device. In that case, we use the second-highest resolution,
since that is often the preferred resolution. In this case, there's nothing we
can do. Sorry.

[tapio (rhcg5511a)]

Using a Westinghouse L1928NV since dapper. Native resolution has not been recognized since intrepid( xfce mid-session, IceWM mid-session, gnome on reboot). The feisty LiveCD has no trouble detecting the native 1280x1040. the EDID tools recognize this resolution but don't trust it.

Xorg.0.log from karmic LiveCD:

X.Org X Server 1.6.4
Release Date: 2009-9-27
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.24-23-server i686 Ubuntu
Current Operating System: Linux ubuntu 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:04:26 UTC 2009 i686
Kernel command line: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash --
Build Date: 26 October 2009 05:15:02PM
xorg-server 2:1.6.4-2ubuntu4 (buildd@)
 Before reporting problems, check http://wiki.x.org
 to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
 (++) from command line, (!!) notice, (II) informational,
 (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Thu Dec 31 20:26:50 2009
(II) Loader magic: 0x3bc0
(II) Module ABI versions:
 X.Org ANSI C Emulation: 0.4
 X.Org Video Driver: 5.0
 X.Org XInput driver : 4.0
 X.Org Server Extension : 2.0
(II) Loader running on linux
(++) using VT number 7

(--) PCI:*(0:1:0:0) 1039:6325:1043:8079 Silicon Integrated Systems [SiS] 65x/M650/740 PCI/AGP VGA Display Adapter rev 0, Mem @ 0xf0000000/134217728, 0xeb800000/131072, I/O @ 0x0000d800/128
(==) Using default built-in configuration (30 lines)
(==) --- Start of built-in configuration ---
 Section "Device"
  Identifier "Builtin Default sis Device 0"
  Driver "sis"
 EndSection
 Section "Screen"
  Identifier "Builtin Default sis Screen 0"
  Device "Builtin Default sis Device 0"
 EndSection
 Section "Device"
  Identifier "Builtin Default vesa Device 0"
  Driver "vesa"
 EndSection
 Section "Screen"
  Identifier "Builtin Default vesa Screen 0"
  Device "Builtin Default vesa Device 0"
 EndSection
 Section "Device"
  Identifier "Builtin Default fbdev Device 0"
  Driver "fbdev"
 EndSection
 Section "Screen"
  Identifier "Builtin Default fbdev Screen 0"
  Device "Builtin Default fbdev Device 0"
 EndSection
 Section "ServerLayout"
  Identifier "Builtin Default Layout"
  Screen "Builtin Default sis Screen 0"
  Screen "Builtin Default vesa Screen 0"
  Screen "Builtin Default fbdev Screen 0"
 EndSection
(==) --- End of built-in configuration ---
(==) ServerLayout "Builtin Default Layout"
(**) |-->Screen "Builtin Default sis Screen 0" (0)
(**) | |-->Monitor "<default monitor>"
(**) | |-->Device "Builtin Default sis Device 0"
(==) No monitor specified for screen "Builtin Default sis Screen 0".
 Using a default monitor configuration.
(**) |-->Screen "Builtin Default vesa Screen 0" (1)
(**) | |-->Monitor "<default monitor>"
(**) | |-->Device "Builtin Default vesa Device 0"
(==) No monitor specified for screen "Builtin Default vesa Screen 0".
 Using a default monitor configuration.
(**) |-->Screen "Builtin Default fbdev Screen 0" (2)
(**) | |-->Monitor "<default monitor>"
(**) | |-->Device "Builtin Default fbdev Device 0"
(==) No mo...