[Ubuntu-x-swat] [Bug 353137] Re: missing pixels when drawing connecting lines
Yes this bug still exists in Ubuntu 10.04 and Ubuntu 11.04. I have recently experimented with various X11 setups too. If I use the FrameBuffer driver (fbdev) the bug is gone. If I use the proprietary AMD/ATI Radeon driver the bug is gone. It seems only if I use the open source ATI (ati) or ATI Radeon (radeon) driver then the bug is there. So maybe that gives some clues as to where this bug is located? ** Also affects: fedora Importance: Undecided Status: New ** Tags added: lucid natty -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to libx11 in Ubuntu. https://bugs.launchpad.net/bugs/353137 Title: missing pixels when drawing connecting lines ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 353137] Re: missing pixels when drawing connecting lines
Since the original bug report, I have changed to a new PC with a different hardware and ATI video card. The problem still exists. Here is the 'lspci' output on my new system. --- $ lspci 00:00.0 Host bridge: Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller (rev 10) 00:01.0 PCI bridge: Intel Corporation 82G33/G31/P35/P31 Express PCI Express Root Port (rev 10) 00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 01) 00:1d.0 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 (rev 01) 00:1d.1 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 01) 00:1d.2 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 01) 00:1d.3 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 01) 00:1d.7 USB Controller: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller (rev 01) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1) 00:1f.0 ISA bridge: Intel Corporation 82801GB/GR (ICH7 Family) LPC Interface Bridge (rev 01) 00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 01) 00:1f.2 IDE interface: Intel Corporation N10/ICH7 Family SATA IDE Controller (rev 01) 00:1f.3 SMBus: Intel Corporation N10/ICH 7 Family SMBus Controller (rev 01) 01:00.0 VGA compatible controller: ATI Technologies Inc RV710 [Radeon HD 4350] 01:00.1 Audio device: ATI Technologies Inc RV710/730 02:05.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8110SC/8169SC Gigabit Ethernet (rev 10) --- -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to libx11 in Ubuntu. https://bugs.launchpad.net/bugs/353137 Title: missing pixels when drawing connecting lines ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 353137] Re: missing pixels when drawing connecting lines
The attached images [x11_paint_bug.png] shows how WINE applications (and my custom drawn GUI toolkit - fpGUI) looks like with the default open-source ATI driver. Notice all the lines are not connecting. This bug has now been in Ubuntu since the 8.10 release. Today I installed Ubuntu 10.04 (64-bit) and still this bug is visible there. As soon as I upgrade to the proprietary ATI driver, then the bug is gone. I have created numerous tests to make sure the issue is not in my fpGUI Toolkit, but as I said, the bug is also in all Windows applications run under WINE. A simple test I did was draw a vertical line from the bottom up. The first pixel is never painted with the open-source ATI drivers. In Ubuntu 8.04.3 and earlier, this bug was not there. ** Attachment added: "Default ubuntu showing painting bugs." http://launchpadlibrarian.net/49017725/x11_paint_bug.png -- missing pixels when drawing connecting lines https://bugs.launchpad.net/bugs/353137 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to libx11 in ubuntu. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 353137] Re: missing pixels when drawing connecting lines
Correction on my last message. This bug has NOT been fixed. This issue is still visible in a new installation of Ubuntu 9.10 (32 & 64bit versions). I also downloaded Fedora 12 LiveCD today, and the exact same bug is visible there as well. So this doesn't seem to be a distro issue, but rather a specific version of X or one of it's libraries. -- missing pixels when drawing connecting lines https://bugs.launchpad.net/bugs/353137 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to libx11 in ubuntu. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
