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Created attachment 1445024[details]
A simple C code to reproduce this problem
Description of problem:
The OS is RHEL7.x, we use Cadence Virtuoso 6.1.7 to design semiconductor circuit on it, we find that sometimes the stipples(patterns in circuit lines) disappear when zoom in, but come back when zoom out.
Cadence helps us to identify this problem, they say it might be related to the drawing API called "XFillRectangle" in X library.
Version-Release number of selected component (if applicable):
libX11-devel-1.6.5-1.el7.x86_64
xorg-x11-drv-intel-2.99.917-27.20160929.el7.x86_64
xorg-x11-drv-nouveau-1.0.13-3.el7.x86_64
How reproducible:
1. any Intel x86_64 machine (core 2 duo, sandy bridge, ivy bridge, kaby lake tested) running RHEL 7.x.
2. Intel integrated graphics or nVidia graphics( NVS300 and NVS310 tested)
3. default graphic drivers come with RHEL 7.x.
Steps to Reproduce:
1. download the attachment file.
2. compile with these parameters: gcc -lc -lX11 -m64 -g rects.c
3. In X, open a terminal to run the a.out.
4. press left, middle and right mouse buttons to switch display cases.
Actual results:
the stipples disappear in case 1(left button), but are displayed in case 2(middle ubtton) and case 3(right button).
Expected results:
Stipples should be displayed in all cases.
Additional info:
1. test nVIDIA graphics(NVS300 and NVS310) with drivers download from nVIDIA, the result is good, no display issue.
2. install RHEL 7.x in VMware Workstation Pro 14.1.2 using "xorg-x11-drv-vmware-13.2.1-1.el7.x86_64" display driver, the result is good, too.
Comment 4RHEL Program Management
2021-02-15 07:39:04 UTC
After evaluating this issue, there are no plans to address it further or fix it in an upcoming release. Therefore, it is being closed. If plans change such that this issue will be fixed in an upcoming release, then the bug can be reopened.
Created attachment 1445024 [details] A simple C code to reproduce this problem Description of problem: The OS is RHEL7.x, we use Cadence Virtuoso 6.1.7 to design semiconductor circuit on it, we find that sometimes the stipples(patterns in circuit lines) disappear when zoom in, but come back when zoom out. Cadence helps us to identify this problem, they say it might be related to the drawing API called "XFillRectangle" in X library. Version-Release number of selected component (if applicable): libX11-devel-1.6.5-1.el7.x86_64 xorg-x11-drv-intel-2.99.917-27.20160929.el7.x86_64 xorg-x11-drv-nouveau-1.0.13-3.el7.x86_64 How reproducible: 1. any Intel x86_64 machine (core 2 duo, sandy bridge, ivy bridge, kaby lake tested) running RHEL 7.x. 2. Intel integrated graphics or nVidia graphics( NVS300 and NVS310 tested) 3. default graphic drivers come with RHEL 7.x. Steps to Reproduce: 1. download the attachment file. 2. compile with these parameters: gcc -lc -lX11 -m64 -g rects.c 3. In X, open a terminal to run the a.out. 4. press left, middle and right mouse buttons to switch display cases. Actual results: the stipples disappear in case 1(left button), but are displayed in case 2(middle ubtton) and case 3(right button). Expected results: Stipples should be displayed in all cases. Additional info: 1. test nVIDIA graphics(NVS300 and NVS310) with drivers download from nVIDIA, the result is good, no display issue. 2. install RHEL 7.x in VMware Workstation Pro 14.1.2 using "xorg-x11-drv-vmware-13.2.1-1.el7.x86_64" display driver, the result is good, too.