Andrew Kurn composed on 2019-06-18 20:16 (UTC-0700): > On Tue 18 Jun 2019 10:50 -0500, Chris Sorenson wrote:
>>> Mon, 17 Jun 2019 15:01:50 -0700 Andrew Kurn composed: >>> I'm using the version of X current for Debian Jessie. >>> I find that windows are sometimes corrupted. The typical case >>> is in XTerm, when the bottom line is covered by a copy of the >>> second-last line. It happens a little more than half the >>> time, so some sort of race condition. >>> It is not confined to XTerm; Emacs and Aisleriot show some >>> of the same behavior. >>> In all cases, moving the window will cure the problem. The >>> redraw is correct. >>> So my conclusion is it's a fault in X. I've never had to >>> report an X bug before. Unlikely a bug report for a product as old as Jessie would get fixed. Versions have advanced considerably since. It may have been a bug that is long since fixed. >>> If you will give me a list of info to provide, I will send >>> it in a later message. >> Your graphics hardware? If you don't know, `lspci -vv` will list everything >> connected to your PCI bus, but please parse out the graphics info rather >> than replying with the whole list. Lspci doesn't report the kernel driver or the DDX (X driver dependent on the kernel's modesetting functionality, KMS). > 00:02.0 VGA compatible controller: Intel Corporation 82Q963/Q965 Integrated > Graphics Controller (rev 02) (prog-if 00 [VGA controller]) ... > Kernel driver in use: i915 > 00:02.1 Display controller: Intel Corporation 82Q963/Q965 Integrated Graphics > Controller (rev 02) You may find switching DDX would clear up the problem. In Jessie the Intel DDX is in xserver-xorg-video-intel, while the modesetting DDX is in xserver-xorg-video-modesetting. Switching can be as simple as purging one and/or installing the other. I have the same GPU but no OS so old, and have seen no evidence of the corruption you describe using the modesetting DDX: # inxi -GxxSM System: Host: gx745 Kernel: 4.12.14-lp151.28.7-default x86_64 bits: 64 compiler: gcc v: 7.4.0 Desktop: KDE 3.5.10 tk: Qt 3.3.8c wm: kwin dm: N/A Distro: openSUSE Leap 15.1 Machine: Type: Desktop System: Dell product: OptiPlex 745 v: N/A serial: 901DSC1 Chassis: type: 15 serial: 901DSC1 Mobo: Dell model: 0GX297 serial: ..CN6986173Q1835. BIOS: Dell v: 2.6.2 date: 08/12/2008 Graphics: Device-1: Intel 82Q963/Q965 Integrated Graphics vendor: Dell driver: i915 v: kernel bus ID: 00:02.0 chip ID: 8086:2992 Display: server: X.Org 1.20.3 driver: modesetting unloaded: fbdev,vesa alternate: intel resolution: 1680x1050~60Hz OpenGL: renderer: Mesa DRI Intel 965Q v: 2.1 Mesa 18.3.2 direct render: Yes # lspci -vv 00:02.0 VGA compatible controller: Intel Corporation 82Q963/Q965 Integrated Graphics Controller (rev 02) (prog-if 00 [VGA controller]) ... 00:02.1 Display controller: Intel Corporation 82Q963/Q965 Integrated Graphics Controller (rev 02) -- Evolution as taught in public schools is religion, not science. Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata *** http://fm.no-ip.com/ _______________________________________________ xorg@lists.x.org: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: https://lists.x.org/mailman/listinfo/xorg Your subscription address: %(user_address)s