Red Hat Bugzilla – Full Text Bug Listing
|Summary:||scrolling in gnome-terminal causes flickering of the whole screen|
|Product:||[Fedora] Fedora||Reporter:||Michal Schmidt <mschmidt>|
|Component:||xorg-x11-drv-ati||Assignee:||Dave Airlie <airlied>|
|Status:||CLOSED RAWHIDE||QA Contact:||Fedora Extras Quality Assurance <extras-qa>|
|Version:||11||CC:||behdad, ehabkost, honza, johannbg, me, phuang, samtygier, xgl-maint|
|Fixed In Version:||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|Last Closed:||2009-09-07 11:28:14 EDT||Type:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
Description Michal Schmidt 2008-09-20 17:07:46 EDT
Created attachment 317292 [details] Xorg.0.log Description of problem: Scrolling text in gnome-terminal causes annoying flickering of the whole desktop. It's like if the whole picture moves a few pixels down, some additional black stripes appear randomly and then the screen is redrawn correctly. All of this happens in a small fraction of a second. Version-Release number of selected component (if applicable): xorg-x11-drv-ati-6.9.0-14.fc10.x86_64 How reproducible: I can reproduce it at will. Steps to Reproduce: 1. Run gnome-terminal 2. vim some_long_text_file 3. hold the down or up arrow to scroll the text Actual results: About once every second the visible flicker occurs. Expected results: Scrolling in gnome-terminal should not have any effect outside of the window. Additional info: I have a Toshiba laptop with an ATI chip: 01:05.0 VGA compatible controller : ATI Technologies Inc RS690M [Radeon X1200 Series] [1002:791f] I do not have an xorg.conf, I let X autodetect everything. While experimenting with this bug I discovered that it only happens with (the default) EXA acceleration method. Adding a xorg.conf with 'Option "AccelMethod" "XAA"' makes the bug go away.
Comment 1 Matěj Cepl 2008-09-22 10:53:06 EDT
Behdad, any thoughts? Or is it just pure our mess?
Comment 2 Behdad Esfahbod 2008-09-22 12:16:41 EDT
Sounds like X issues. Very unlikely to be g-t.
Comment 3 Michal Schmidt 2008-09-23 08:27:56 EDT
I downloaded and installed an older version of the driver from Koji: xorg-x11-drv-ati-6.8.0-19.fc10.x86_64 The older version defaults to XAA, but when forced to use EXA with 'Option "AccelMethod" "EXA"', the same flickering happens.
Comment 4 Matěj Cepl 2008-09-24 18:20:23 EDT
And what about other way around? Using the latest -ati driver and put "AccelMethod" "XAA" into xorg.conf?
Comment 5 Michal Schmidt 2008-09-25 04:17:17 EDT
Matej, I wrote that in the original report. With the current driver version 'Option "AccelMethod""XAA"' makes the bug go away. So no matter whether I use the old or the new driver version, EXA always flickers, XAA never does.
Comment 6 Michal Schmidt 2008-10-13 10:04:08 EDT
Still reproducible with xorg-x11-drv-ati-6.9.0-25.fc10.x86_64. The flickering effect is best observed when cpufreq is set to a lower frequency (in my case 800 MHz). With the CPU running at full speed (2 GHz), the flickering is much less visible. Also I noticed the flickering happens with other applications besides gnome-terminal. With gnome-terminal it's just the easiest to reproduce.
Comment 7 Jan Martinek 2008-10-28 11:00:18 EDT
On my computer (MB Asus M2A-VM with RS690), the flickering is visible only when the display is rotated to portrait mode using "xrandr -o left" AND the system is resumed from sleep mode. After fresh boot, the flickering is barely visible. But after suspend/resume it becomes clearly noticeable and annoying even with CPU running at full 2.5 GHz. kernel: 22.214.171.124-51.fc10.x86_64 driver: xorg-x11-drv-ati-6.9.0-31.fc10.x86_64 Dmesg after wakeup shows this: [drm] Loading RS690/RS740 Microcode [drm] Num pipes: 1
Comment 8 Jan Martinek 2008-10-28 11:41:38 EDT
I just noticed that once the flickering starts (after resuming the computer from suspend), killing/restarting the X server does not help. I must reboot the machine to get rid of the flickering.
Comment 9 Bug Zapper 2008-11-25 22:09:29 EST
This bug appears to have been reported against 'rawhide' during the Fedora 10 development cycle. Changing version to '10'. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
Comment 10 Jóhann B. Guðmundsson 2008-12-01 06:35:49 EST
There have been bunch of bug fixes Could you retest with the latest kernel ( -132 at the time of this writing ) You can get the latest kernel build here http://koji.fedoraproject.org/koji/buildinfo?buildID=72270 And with the latest xorg-x11-drv-ati. ( -60 at the time of this writing ) You can get the latest xorg-x11-drv-ati build here http://koji.fedoraproject.org/koji/packageinfo?packageID=95 And report back if it either improves or fixes this issue.. Thanks.
Comment 11 Michal Schmidt 2008-12-01 10:55:00 EST
I have kernel kernel-126.96.36.199-133 (built myself from Fedora CVS) and xorg-x11-drv-ati-6.9.0-60. The bug is still there.
Comment 12 Michal Schmidt 2008-12-01 10:59:42 EST
Unlike Jan, I do not need to rotate the screen or suspend/resume to see the flickering. I am seeing the bug right after a fresh boot and without rotation.
Comment 13 Jóhann B. Guðmundsson 2008-12-02 03:27:43 EST
Hum.. Which X server build are you using? Update to the latest in koji, Let's see if that does some wonders.. http://koji.fedoraproject.org/koji/buildinfo?buildID=69927
Comment 14 Michal Schmidt 2008-12-02 04:47:25 EST
xorg-x11-server-1.5.3-5.fc10 (currently the latest) is the one in F10 GA, so I'm already running that one. I have upgraded to xorg-x11-drv-ati-6.9.0-61.fc10 and kernel-188.8.131.52-134.fc10 and the bug is still present.
Comment 15 Michal Schmidt 2009-01-28 11:00:31 EST
Still trivially reproducible with: xorg-x11-drv-ati-6.10.0-1.fc10.x86_64 xorg-x11-server-Xorg-1.5.3-6.fc10.x86_64 kernel-184.108.40.206-170.2.5.fc10.x86_64
Comment 16 Michal Schmidt 2009-03-26 12:47:09 EDT
I upgraded the laptop to Rawhide. I can still reproduce the flickering as described in my original report. xorg-x11-drv-ati-6.12.0-2.fc11.x86_64 xorg-x11-server-Xorg-1.6.0-15.fc11.x86_64 kernel-2.6.29-0.279.rc8.git6.fc11.x86_64
Comment 17 Sam Tygier 2009-06-15 11:56:29 EDT
seeing the same thing on a toshiba with 01:05.0 VGA compatible controller: ATI Technologies Inc RS690M [Radeon X1200 Series] on fedora11 i have tried setting accelmethod to xaa, but i still get exa, and the flickering.
Comment 18 Michal Schmidt 2009-07-03 08:39:59 EDT
The flickering is still reproducible with current Fedora 11, both with or without KMS. There's a bit of good news: current upstream xf86-video-ati from git master is not affected. Here's a scratch build for testing: http://koji.fedoraproject.org/koji/taskinfo?taskID=1452541 It has serious issues with modesetting enabled, but works fine with "nomodeset".
Comment 19 Eduardo Habkost 2009-08-08 19:48:25 EDT
Also reproduced here, on a Thinkpad T60 running Fedora 11, with modesetting disabled. 01:00.0 VGA compatible controller : ATI Technologies Inc M52 [Mobility Radeon X1300] [1002:7149] I am running xorg-x11-drv-ati-6.12.2-14.fc11.i586. The problem was gone when using 'Option "AccelMethod" "XAA"'.
Comment 20 Michal Schmidt 2009-09-07 11:28:14 EDT
I cannot reproduce this in Rawhide, with or without KMS. With KMS the scrolling is slow and far from smooth, but no flickering happens. kernel-2.6.31-0.204.rc9.fc12.x86_64 xorg-x11-drv-ati-6.13.0-0.2.20090821gitb1b77a4d6.fc12.x86_64 xorg-x11-server-Xorg-1.6.99-45.20090903.fc12.x86_64
Comment 21 Ryan H. Lewis (rhl) 2010-03-31 18:59:34 EDT
I'm running F12 with fluxbox as my desktop manager and having the same problem when using gnome-terminal. I'm on all the latest updates from yum update Here is all the relevant package info NOTE-- I'm not using an ATI card at all: lspci -v | fpaste http://fpaste.org/Mjj0/ yum info vim* | fpaste http://fpaste.org/KZOU/ yum info xorg* | grep Name | fpaste http://fpaste.org/pzYF/ yum info xorg* | fpaste http://fpaste.org/evVQ/ I fix the issue by closing all my gnome-terminals and the problem goes away immediately.
Comment 22 Michal Schmidt 2010-04-01 08:53:53 EDT
Ryan, issues like these are almost certainly hardware-specific and this BZ was about ATI, so please file a new bug and attach dmesg, /var/log/Xorg.0.log, /etc/X11/xorg.conf (if you use one) to it (directly to BZ, not via fpaste). Thank you.
Comment 23 Ryan H. Lewis (rhl) 2010-04-20 11:27:41 EDT
Created attachment 407847 [details] rhl6856 xorg.0.log
Comment 24 Ryan H. Lewis (rhl) 2010-04-20 11:30:03 EDT
Created attachment 407848 [details] rhl6856 xorg.conf