Red Hat Bugzilla – Full Text Bug Listing
|Summary:||(radeon) Vectors drawn in X with one end outside of window is not visible|
|Product:||[Retired] Red Hat Linux||Reporter:||christer|
|Component:||XFree86||Assignee:||X/OpenGL Maintenance List <xgl-maint>|
|Status:||CLOSED CURRENTRELEASE||QA Contact:||David Lawrence <dkl>|
|Fixed In Version:||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|Last Closed:||2004-10-12 15:47:14 EDT||Type:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
|Bug Depends On:|
Description christer 2002-05-13 06:19:20 EDT
From Bugzilla Helper: User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; Q312461) Description of problem: I'm using a CAD software (CAE program). When it display vectors (electrical tracks) with different x *and* y values for the start and end points and one point is outside of the window, the track wont show. Instead it becomes a kind of a negative vector, removing pixels where it should light up. (NOT instead of AND at each pixel) If X or Y is equal the vector is visible. It did work in Redhat 7.2 and earlier. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. You can't do it my way since you don't have the program. Maybe a simple test program you write would reveal the bug. 2. 3. Additional info: The tracks drawn is two paralell one pixel wide vectors with one half-circle at each end.
Comment 1 Mike A. Harris 2002-05-13 14:34:58 EDT
It's up to you to produce a test case which illustrates the bug you are describing. From what you've described above, for all I know, it is a bug in the software you're using itself. Unless I have a 100% reproduceable test case, I can't look into it.
Comment 2 Mike A. Harris 2002-05-14 09:17:03 EDT
ALso, indicate what video card you're using and attach X server log and config files.
Comment 4 christer 2002-05-15 19:20:09 EDT
I'm using an ATI radeon card. This is lspci -vv: 01:05.0 VGA compatible controller: ATI Technologies Inc Radeon QD (prog-if 00 [VGA]) Subsystem: ATI Technologies Inc Radeon 7000/Radeon Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B+ Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 66 (2000ns min), cache line size 10 Interrupt: pin A routed to IRQ 18 Region 0: Memory at f0000000 (32-bit, prefetchable) [size=128M] Region 1: I/O ports at 2000 [size=256] Region 2: Memory at e0100000 (32-bit, non-prefetchable) [size=512K] Expansion ROM at <unassigned> [disabled] [size=128K] Capabilities:  AGP version 2.0 Status: RQ=47 SBA+ 64bit- FW- Rate=x1,x2 Command: RQ=15 SBA+ AGP+ 64bit- FW- Rate=x2 Capabilities:  Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2- ,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- When I replace the driver /usr/X11R6/modules/drivers/radeon_drv.o with the version from XFree86-4.1.0-15 my problem disapears.
Comment 5 christer 2002-06-01 20:11:31 EDT
Putting the option "XaaNoSolidTwoPointLine" in the config file fixes the problem.
Comment 6 Mike A. Harris 2002-06-01 22:38:26 EDT
Ok, cool. Thanks for narrowing it down. I'll add that option by default for the Radeon if it doesn't get fixed right away. Do you notice this with any other software? Please attach your config file as well. Thanks.
Comment 7 Mike A. Harris 2002-06-01 22:46:29 EDT
One more thing to test in order to narrow it a bit more. Can you comment out the XaaNoSolidTwoPointLine, and disable DRI instead, and see if that changes anything? If the problem happens with DRI disabled, leave DRI disabled, and add the XaaNoSolidTwoPointLine back. What are the results of that? That should significantly narrow things down to the exact function in the radeon driver. Thanks.
Comment 8 christer 2002-06-02 12:05:16 EDT
Created attachment 59264 [details] Patch for radeon_accel.c
Comment 10 christer 2002-06-02 12:19:09 EDT
The only thing that makes a difference is XaaNoSolidTwoPointLine. I think it would be possible to test this with xtest, but I can't figure out how to compile it on a short notice. I'm also attaching a patch for something else i saw in the source.
Comment 11 Mike A. Harris 2002-07-26 08:23:46 EDT
This bug is very similar in nature to bug #67852 Can you have a look at it and comment please? Thanks.
Comment 13 Mike A. Harris 2004-10-12 15:47:14 EDT
Since this bugzilla report was filed, there have been several major updates to the X Window System, which may resolve this issue. Users who have experienced this problem are encouraged to upgrade to the latest version of Fedora Core, which can be obtained from: http://fedora.redhat.com/download If this issue turns out to still be reproduceable in the latest version of Fedora Core, 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.