Closed Bug 60046 Opened 24 years ago Closed 24 years ago

text display has an off-by-1-pixel refresh error

Categories

(Core :: Layout, defect, P3)

x86
All
defect

Tracking

()

RESOLVED DUPLICATE of bug 35735
Future

People

(Reporter: darin.moz, Assigned: kmcclusk)

References

Details

From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux 2.2.16-22 i686; en-US; m18) Gecko/20001107 Netscape6/6.0 BuildID: 2000110709MN6 Text display has an off-by-1-pixel refresh problem noticeable while scrolling. This bug seems to have appeared only recently. Reproducible: Always Steps to Reproduce: 1. Open up a URL to a text/plain resource large enough to enable sc 2. Scroll the content up and down. 3. Notice that at least one row of text will either be vertically squished or stretched by exactly one pixel. Actual Results: Noticed a off-by-1-pixel refresh problem. Expected Results: Should draw text correctly. Noticed this in both the trunk and the branch.
Please triage.
Assignee: clayton → harishd
Darin, could you please attach a testcase? Thanx
This very bugzilla bug report is an excellent example... though I should verify it against a recent nightly build.
Seeing this with build 2000-12-22-09-Mtrunk under linux. Scroll up and down over this bug report and watch the Summary entry box. If you get it just right (may take a few seconds of scrolling) you'll either see the text squished or expanded vertically by one pixel.
What logical resolution do you use? 96dpi? (See both Edit | Preferences | Fonts and the output of xdpyinfo.) Is this a dup of bug 16200?
96dpi... however, not seeing this in Build 2001010517, so marking as WFM.
Status: NEW → RESOLVED
Closed: 24 years ago
Resolution: --- → WORKSFORME
wouldn't you know it, right after marking this bug as WFM, i was able to reproduce it!! arrgh. I am using XFree86 4.0.1 under Redhat 7.0 with a NVIDIA GeForce 256 video card. I'm not seeing this bug in other programs, so I would imagine my video setup shouldn't matter, but anyways.. here's a dump of my xdpyinfo: name of display: :0.0 version number: 11.0 vendor string: The XFree86 Project, Inc vendor release number: 4001 maximum request size: 4194300 bytes motion buffer size: 256 bitmap unit, bit order, padding: 32, LSBFirst, 32 image byte order: LSBFirst number of supported pixmap formats: 6 supported pixmap formats: depth 1, bits_per_pixel 1, scanline_pad 32 depth 4, bits_per_pixel 8, scanline_pad 32 depth 8, bits_per_pixel 8, scanline_pad 32 depth 15, bits_per_pixel 16, scanline_pad 32 depth 16, bits_per_pixel 16, scanline_pad 32 depth 24, bits_per_pixel 32, scanline_pad 32 keycode range: minimum 8, maximum 255 focus: window 0x1c00013, revert to Parent number of extensions: 28 BIG-REQUESTS DOUBLE-BUFFER DPMS Extended-Visual-Information FontCache GLX LBX MIT-SCREEN-SAVER MIT-SHM MIT-SUNDRY-NONSTANDARD RECORD SECURITY SGI-GLX SHAPE SYNC TOG-CUP X3D-PEX XC-APPGROUP XC-MISC XFree86-Bigfont XFree86-DGA XFree86-Misc XFree86-VidModeExtension XIE XInputExtension XKEYBOARD XTEST XVideo default screen number: 0 number of screens: 1 screen #0: dimensions: 1600x1200 pixels (402x302 millimeters) resolution: 101x101 dots per inch depths (1): 16 root window id: 0x28 depth of root window: 16 planes number of colormaps: minimum 1, maximum 1 default colormap: 0x21 default number of colormap cells: 64 preallocated pixels: black 0, white 65535 options: backing-store NO, save-unders NO largest cursor: 32x32 current input event mask: 0x5a20bd KeyPressMask ButtonPressMask ButtonReleaseMask EnterWindowMask LeaveWindowMask PointerMotionHintMask ButtonMotionMask StructureNotifyMask SubstructureNotifyMask SubstructureRedirectMask PropertyChangeMask number of visuals: 2 default visual id: 0x23 visual: visual id: 0x23 class: TrueColor depth: 16 planes available colormap entries: 64 per subfield red, green, blue masks: 0xf800, 0x7e0, 0x1f significant bits in color specification: 6 bits visual: visual id: 0x24 class: TrueColor depth: 16 planes available colormap entries: 64 per subfield red, green, blue masks: 0xf800, 0x7e0, 0x1f significant bits in color specification: 6 bits
Status: RESOLVED → REOPENED
Resolution: WORKSFORME → ---
Assignee: harishd → kmcclusk
Status: REOPENED → NEW
This smells layout than parser. Handing over to Kevin.
Status: NEW → ASSIGNED
Setting milestone to mozilla1.0.1
Target Milestone: --- → mozilla1.0.1
Clearing milestone.
Target Milestone: mozilla1.0.1 → ---
Setting milestone to future.
Target Milestone: --- → Future
*** Bug 67381 has been marked as a duplicate of this bug. ***
This problem occurs on both Linux and Mac
OS: Linux → All
*** This bug has been marked as a duplicate of 35735 ***
Status: ASSIGNED → RESOLVED
Closed: 24 years ago24 years ago
Resolution: --- → DUPLICATE
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