Description of problem: External DVI display on flickers to black. This is a regression. Version-Release number of selected component (if applicable): xorg-x11-drv-ati-6.10.0-1.fc10.i386, does not work xorg-x11-drv-ati-6.9.0-63.fc10, worked beautifully How reproducible: Everytime. Steps to Reproduce: 1. boot with default radeon driver (no xorg.conf) and external display connected 2. login 3. external DVI display flickers and is unusable Actual results: Image that flickers to black. Expected results: Stable image. Additional info: HP Compaq 8510p laptop. HP LP2465 DVI display. $ lspci | grep ATI 01:00.0 VGA compatible controller: ATI Technologies Inc M76 [Radeon Mobility HD 2600 Series] 01:00.1 Audio device: ATI Technologies Inc RV630/M76 audio device [Radeon HD 2600 Series] $ xrandr -q Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 3840 x 1920 VGA-0 disconnected (normal left inverted right x axis y axis) LVDS connected 1680x1050+0+0 (normal left inverted right x axis y axis) 331mm x 207mm 1680x1050 59.9*+ 1400x1050 60.0 1280x1024 60.0 1280x960 60.0 1024x768 60.0 800x600 60.3 640x480 59.9 DVI-0 connected (normal left inverted right x axis y axis) 1920x1200 60.0 + 1600x1200 60.0 1680x1050 59.9 1600x1000 60.0 1400x1050 74.8 60.0 1280x1024 85.0 75.0 60.0 1280x960 85.0 60.0 1152x864 75.0 1152x720 60.0 1024x768 85.0 75.0 70.1 60.0 832x624 74.6 800x600 85.1 72.2 75.0 60.3 56.2 640x480 85.0 75.0 72.8 75.0 59.9 720x400 85.0 70.1 640x400 85.1 640x350 85.1 HDMI-0 connected (normal left inverted right x axis y axis) 1920x1200 60.0 + 1600x1200 60.0 1680x1050 59.9 1600x1000 60.0 1400x1050 74.8 60.0 1280x1024 85.0 75.0 60.0 1280x960 85.0 60.0 1152x864 75.0 1152x720 60.0 1024x768 85.0 75.0 70.1 60.0 832x624 74.6 800x600 85.1 72.2 75.0 60.3 56.2 640x480 85.0 75.0 72.8 75.0 59.9 720x400 85.0 70.1 640x400 85.1 640x350 85.1
Thanks for the bug report. We have reviewed the information you have provided above, and there is some additional information we require that will be helpful in our diagnosis of this issue. Please attach your X server config file (/etc/X11/xorg.conf, if available) and X server log file (/var/log/Xorg.*.log) to the bug report as individual uncompressed file attachments using the bugzilla file attachment link below. Could you please also try to run without any /etc/X11/xorg.conf (if you have one) whatsoever and let X11 autodetect your display and video card? Attach to this bug /var/log/Xorg.0.log from this attempt as well, please. We will review this issue again once you've had a chance to attach this information. Thanks in advance.
Created attachment 331491 [details] run without any /etc/X11/xorg.conf
Created attachment 331579 [details] Xorg.0.log from latest git has regression too
Still a problem on Fedora 11. $ rpm -q xorg-x11-drv-ati xorg-x11-drv-ati-6.12.2-14.fc11.i586 I found a workaround though, maybe this will help in fixing this bug too? xrandr --newmode "1920x1200_60.00" 162 1920 2048 2256 2592 1200 1201 1204 1242 -HSync +Vsync xrandr --addmode DVI-0 1920x1200_60.00 xrandr --output DVI-0 --mode 1920x1200_60.00 xrandr --output DVI-0 --right-of LVDS
I should note the flickering *only* happens when I set my monitor to native 1920x1200 resolution as exposed through xrandr. $ xrandr --output DVI-0 --mode 1920x1200 If I choose 1680x1050 there is no flickering. However using the custom 1920x1200 modeline I mentioned in comment #4 fixes the flickering.
Using the latest from rawhide things have gotten worse. The external 1920x1200 DVI display does not even come on to flicker anymore. It just stays black. And using the previous workaround from comment #4 doesn't work anymore. $ uname -a Linux localhost.localdomain 2.6.31.5-112.fc12.x86_64 #1 SMP Tue Nov 3 00:28:52 EST 2009 x86_64 x86_64 x86_64 GNU/Linux $ cat /etc/redhat-release Fedora release 11.92 (Rawhide)
Since this bugzilla report was filed, there have been several major updates in various components of the Xorg system, which may have resolved this issue. Users who have experienced this problem are encouraged to upgrade their system to the latest version of their packages. For packages from updates-testing repository you can use command yum upgrade --enablerepo='*-updates-testing' Alternatively, you can also try to test whether this bug is reproducible with the upcoming Fedora 12 distribution by downloading LiveMedia of F12 Beta available at http://alt.fedoraproject.org/pub/alt/nightly-composes/ . By using that you get all the latest packages without need to install anything on your computer. For more information on using LiveMedia take a look at https://fedoraproject.org/wiki/FedoraLiveCD . Please, if you experience this problem on the up-to-date system, let us now in the comment for this bug, or whether the upgraded system works for you. If you won't be able to reply in one month, I will have to close this bug as INSUFFICIENT_DATA. Thank you. [This is a bulk message for all open Fedora Rawhide Xorg-related bugs. I'm adding myself to the CC list for each bug, so I'll see any comments you make after this and do my best to make sure every issue gets proper attention.]
(In reply to comment #7) > Please, if you experience this problem on the up-to-date system, let us now in > the comment for this bug, or whether the upgraded system works for you. I have tested again with a newer build, desktop-i386-20091104.16.iso, and the problem still exists. There are two cases here 1. booting with KMS (the default) On boot my secondary DVI display does not light up at all. No flickering or anything. The green status light on my monitor doesn't even come on to indicate a signal. I'm left with no way of logging in because the GDM puts the login on the dark screen. (This was the the same case from comment #6) 2. booting with 'nomodeset' kernel option On boot the secondary DVI display lights up but flickers very badly just like my original bug report. Adding a custom modeline as in comment #4 fixes the flickering. I'm not sure how you want to handle this bug. Ignore the 'nomodeset' case and just focuss on getting it to work with KMS?
From my comment #8, the first case looks like bug #421982 (and presumably duplicates bug #484992 and bug #522238). Situation, the secondary DVI output does not light up monitor when using KMS. Using VGA connection instead *does* light up monitor with KMS.
Sorry, s/bug #421982/bug #521982
I've filed a new bug #544018 to cover case #1 (booting with KMS) from comment #8
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This is fixed in F13.
Great! Thank you for reporting back.