[Bugme-new] [Bug 13478] New: [P4M900] [HP 2133] resolution problem starting X with the wlan network controler activated

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Sun Jun 7 13:44:06 PDT 2009


http://bugzilla.kernel.org/show_bug.cgi?id=13478

           Summary: [P4M900] [HP 2133] resolution problem starting X with
                    the wlan network controler activated
           Product: Platform Specific/Hardware
           Version: 2.5
    Kernel Version: 2.6.28-11-generic
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: i386
        AssignedTo: platform_i386 at kernel-bugs.osdl.org
        ReportedBy: mind_mario at hotmail.com
        Regression: No


[It is a copy of the bug
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-openchrome/+bug/355918.
Follow the link for more details]

--------------------------------------------------------------

My computer is a HP 2133 netbook (FU353EA), with a wlan network controller
BCM4312. It has an interrupt to activate/deactivate radio activities (wlan and
bluetooth) and the maximum screen resolution accepted by the monitor is
1024x600.

So the problem is these one: if I boot up my computer whit the radio activities
deactivated the X server works perfect, and when starts I can see all the area
of de desktop, it's normal... but if I boot up the system with the radio button
activated the X server detects the maximum resolution of my screen like
1366x768 and some area of the desktop is positioned out of the screen limits.

A description of the situation can be looked in the next schema:

(You should see the "image" commented at C style /* */ in a uniform-width font,
like Courier or similar)

/*

-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-----------
|···············································*·········|
* These area limited by asterisks is the ·······*·········|
|···············································*·········|
* portion of desktop that is can see············*·········|
|···············································*·········|
*···············································*·········|
|···············································*·········|
*···············································*·········|
|···············································*·········|
|···············································*·········|
|···············································*·········|
* (1024x600)····································*·········|
|************************************************·········|
|These other area is the area of desktop which is·········|
|outside of my screen limits. The X server manages the····|
|area but I can't see it.·································|
-----------------------------------------------------------
            (1366x768)

*/

But at the other hand, if there is no driver (proprietary driver or ndis driver
through ndiswrapper) installed on the system the resolution gets correctly but
if there is some driver installed the resolution gets wrong.

I hope that you understand the exact problem, it is very strange, and I had
very surprised when I noticed the bug...

Good luck.

I had temporally solved the bug with a script which install the ndiswrapper
driver for my network card in /etc/rc.local.

I am not exactly sure if the problem comes from the Xorg, but it is very
probable that the X server is miss-interpreting the screen model.

[lspci]
00:00.0 Host bridge [0600]: VIA Technologies, Inc. CN896/VN896/P4M900 Host
Bridge [1106:0364]
     Subsystem: Hewlett-Packard Company Device [103c:3030]
01:00.0 VGA compatible controller [0300]: VIA Technologies, Inc.
CN896/VN896/P4M900 [Chrome 9 HC] [1106:3371] (rev 01)
     Subsystem: Hewlett-Packard Company Device [103c:3030]

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