Patrick C wrote: > Sounds like a problem with your video card (not enough video RAM?) or > a specific application causing problems. The problem sounds like it > would be difficult to diagnose with just this information. Do you use > any "desktop effects"? What kind of video card do you have, what > driver are you using? Also, is the video RAM shared? In that case, you > could probably increase it without upgrading your hardware. I definitely don't use any fancy effects. I find those to be more of an annoyance than anything. I will have to get back to you on the video card. It's a notebook so I'm not sure what everything is. IIRC it had a fair bit of RAM It may possibly be a problem with connecting up the two disparate monitors (3:4 and 9:16), the Philips external monitor being the limiting factor as far as resolution is concerned. The problem has never occurred without the docking station, and doesn't always occur with it. I do suspect that it could be fixed with a different driver or some Xorg configuration changes. As the price of flat panels has decreased I will probably get one with matching dimensions and hope it goes away. Thanks! Vaughn > > I had similar symptoms a few years ago, but I was on Windows. I > upgraded the video card on it for gaming/general performance with a > cheap ($50), previous-gen, low-end video card that had still had more > video RAM and that fixed the problem. I wouldn't be surprised if a > higher resolution puts more of a strain on the graphics card and > that's why it shows up. Which monitor is higher resolution? You should > check to see if the problem persists with the "bad" monitor without > using the docking station, as well. > > On Mon, Jul 21, 2008 at 6:20 AM, Vaughn Treude > wrote: > > Normally when I encounter a Linux problem my first course of action is > to Google for a solution. This time I'm not even sure what to call it. > "X Windows scroll problem" and "X Windows bad repaint" don't > return any > useful information. > I'm running Unbuntu Hardy Heron on a Dell Latitude D830. So far the > problem has only shown up when it's hooked to the docking station and > connected to my Philips CM800 monitor. > Since the screens are different dimensions (4:3 and 16:9), it > surprised > me at first that it worked as well as it did. When I boot it with the > monitor attached, it sets the resolution to match the Philips. On The > Dell, the bottom of the screen is chopped off. That's OK for my > purposes. > What's started happening is that window repainting has stopped working > for certain actions. When I try to scroll a document in Open > Office, the > whole thing goes black. If I minimize and restore the window, it's OK. > The problem also occurs when I drag a terminal window across the > screen. > That goes black as well. Again the problem can be fixed by > minimize/restore. > The first time I encountered this, I figured that X Windows had gotten > in a bad state, so I logged off and back on. (This has always been one > of my favorite features of Linux; you don't have to reboot to fix a > problem with the windowing system.) Now when I log off it never comes > back to the log on screen; it just stays black. I end up rebooting it. > The last couple of times I have done this, the problem is still there. > I've looked in the Xorg log file and all that's in there seems to > relate > to initialization of the monitors. > At some point I will probably get a new monitor (because of the > dimensional issues) and give this one to my kid, but I've got no > guarantee it won't also happen with the new monitor. > Has anyone else encountered this problem? Does it have a name? > Thanks in advance, > > Vaughn > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > > > ------------------------------------------------------------------------ > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss --------------------------------------------------- PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us To subscribe, unsubscribe, or to change your mail settings: http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss