Description of problem: On a Inspiron i8100 there are constant small perturbations on the extreme left side of the screen when using the 'nv' driver. The 'vesa' driver does not have this problem. (Neither does the 'nv' driver on an i8200 with GeForce4 440 Go and Phoebe2). This is on an i8100 with GeForce2 Go and Phoebe2 using the 'nv' driver from XFree86-4.2.99.3-20030118.3 Very irritating. Version-Release number of selected component (if applicable): XFree86-4.2.99.3-20030118.3 How reproducible: Constantly visible Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info:
Please upgrade to the latest rawhide release of XFree86 first, and if the problem persists, please attach your X server config file, log file, and a screenshot of the visual corruption you are having. Please test this in several color depths to see if it only occurs at one depth or at all depths.
Created attachment 89863 [details] this is file /etc/X11/XF86Config
Created attachment 89864 [details] this is the file /var/log/XFree86.0.log
I installed the Rawhide XFree86 rpms ( 4.2.99.4-20030129.5 ). This makes no difference, the problem persists, and at all color depths (though it is hardly visible at 24 bits). It does not show up on a screenshot (it resembles the spectrum graph shown in xmms when playing music, but with very fine, hair width, white lines dancing up and down with the left border of the screen as a base. Sometimes at the top, sometimes in the middle and sometimes at the bottom of the screen. Sometimes disappearing for seconds/minutes and then beginning again) If relevant, the screensize is 1400x1050. By the way the Rawhide rpms break 'redhat-config-xfree86' with the message: File "/usr/share/redhat-config-xfree86/xconf.py", line 357 current_card_driver = current_card.getCardData()["DRIVER"] ^ SyntaxError: invalid syntax
Slight correction: the problem persists at all 'usefull' color depths (15,16,24 bits). It is NOT visible at 8 bits.
Ah, I know exactly what you mean. They're jittery horizontal lines cycling up and down all over parts of the display. I get this on Mach64 hardware, and have some digital pictures. Please look at the following and tell me if any of them look like what you see remotely: ftp://people.redhat.com/mharris/pictures/RageIIC The current_card_driver bug is a FSD (Frequently Submitted Dupe), and long since fixed now. ;o)
Oh, by the way, if you have a digital camera, can borrow one, or can get someone to take pictures for you with good lighting and no flash that are about as clear as mine above, that would also be appreciated. Please attach them individually to bugzilla if possible. Thanks.
I have looked at your pictures. They are not very clear. I see nothing in the pictures resembling what I am experiencing. Do you mean the fuzzy white lines on the right side of the open windows? What I see are very very thin white lines (on a dark background) or black lines (on a light background) looking like a rippling 'histogram' or 'spike graph' on the extreme left of the screen with the screen border as base of the 'spikes' which are at most 1-2 cm in height. Matthias Saou, who also experienced this (phoebe-list, jan 8) described this as "a very small flickering on the left of my screen". I am sorry, but I have'nt got a digital camera (not even an ordinary one) and so far I also have not found anybody among my acquaintances who does.
awol: What kind of monitor you have? With my Samsung SyncMaster 171S (it's a 17" lcd) I get about the same effect if using the default refresh rate (76 Hz, if I remember it right) RH 8.0 gives me. If I drop the refresh rate to 60 Hz, the effect disappears. The resolution I use is 1280x1024 and gfx card is Gainward GeForce 3 TI-500.
Created attachment 91452 [details] Screenshot of said lines I was able to get ahold of a digital camera in order to document this "perturbation." I'm using Red Hat 9 with an NVIDIA GeForce 2 Go, with the default nv driver. These lines only appear on the left-hand side of the screen, and as mentioned above they are at most 1-2cm in length. Note: These lines do not tend to show up when a window is along the left-hand side of the screen. In other words, the backdrop is affected, not any objects that overlap that area. Their frequency appears to be random. They only appear for a split-second before disappearing, although the average number of them is enough to be annoying. I have noticed a connection between the greatest density of them on the screen and the present location of the mouse cursor (a pack of lines appears to follow the mouse along the vertical horizon). The screenshot is poor, and there are only a few lines shown, as this phenomenon can go from minor to extreme within a matter of minutes.
Ok, I've looked at your screenshot, and this does indeed appear to be a video driver bug. I'll need you to try a few things in order to attempt to narrow down the problem. First thing to try, is to add the following to your Device section of your X config file, and restart X: Option "noaccel" Please indicate if this makes the problem go away or not. If it does, then remove that option, and try using the various XaaNo.... options documented on the XF86Config manpage one at a time. See if you can narrow down any one option or couple of options that make the problem go away.
I tried it with: Option "NoAccel" in the 'Device' section of XFre86Config. This makes no difference at all. The problem persists. In addition to what xenofalcon said I can mention that the problem not only 'erupts' in relation to the movements of the mouse cursor but also when dragging a window across the screen (of course the mouse is being used here).
I can additionally confirm that no change occurs when using NoAccel in the XF86Config file; I even checked to see that X was parsing it. Just for laughs, I tried all of the specific XaaNo options together, but that made no difference either. It seems that the lines can in fact appear on windows along the left-hand side of the monitor, but their color is black then and they are not as frequent, which makes it harder to notice them.
I can verify the problem, and that it nearly goes away at 24bits
This sounds like the video res/refresh being used at the current depth is exceeding the bandwidth available perhaps. Try lowering the refresh rate to 60Hz (you can obtain information on how to do this via the xfree86 mailing list if need be), just to see if the problem goes away. If it does, increase the refresh to 70, 72, 75, etc. until the problem returns. Does this change anything?
Please upgrade to Fedora Core 2 or later, and if this issue turns out to still be reproduceable, please file a bug report in the X.Org bugzilla located at http://bugs.freedesktop.org in the "xorg" component. Once you've filed your bug report to X.Org, if you paste the new bug URL here, Red Hat will continue to track the issue in the centralized X.Org bug tracker, and will review any bug fixes that become available for consideration in future updates.