Hello! Sorry for some delay..
Here are test results: kernel changed from 2.6.32.5 > 3.7.4 1. loading without any radeon specific kernel options > the same result (totally unusable, 1 flickering in 2 sec.) 2. loading with radeon.disp_priority=2 > the same result (totally unusable, 1 flickering in 2 sec.) 3. loading with radeon.new_pll=0 > the same result (totally unusable, 1 flickering in 2 sec.) 4. loading with radeon.disp_priority=2 AND radeon.new_pll=0 > much better (partially usable, 1 flickering in 15-20 sec., but, of course in general can't be used). Resolution used:; 1600 x1200 At resolution 1280x1024 (non-default, lower) - still all OK with any options above. Is it Radeon 9200 card related stuff or not? Thank you! 2013/2/4 Alex Deucher <alexdeuc...@gmail.com>: > On Sun, Feb 3, 2013 at 7:54 AM, Eduard Tibet <eduard.ti...@gmail.com> wrote: >> Hello! >> >> I've already post this message to other several X-related forums some >> time ago, but unfortunately I didn't get some information from there. >> Seems that other people didn't faced such problems. Searching this >> list for such problem gives some results but don't seem to be the same >> as mine. >> >> Initial state: >> I have 1 graphic card (based on ATI Radeon 9200) and 2 monitors (both >> EIZO) with Debian 6.0 powered PC (default kernel 2.6.32.5-686). >> Monitors have different resolutions: S1961 (1280x1024) and L985EX >> (1600x1200). I use only single monitor each time (the other one even >> doesn't connected to signal output). Both are works OK in console >> (text) modes at all outputs (so technically they are seems to be OK). >> S1961 works OK in all modes at all outputs in X session (DVI, VGA). >> But L985EX has very strange problem: it works OK in all modes at VGA >> output, but begins to blink when using DVI output. It seems like >> monitor probing procedure takes place (i.e.: blank screen 1-2 sec. > >> restoring image 2-3 sec. > blank screen again 1-2 sec. > restoring >> image 2-3 sec.). Other interesting thing that the frequency of such >> behaviour is mostly depends on resolution. At default (max res.) >> 1600x1200 there are no possible to do anything in X session (blanking >> and stable image are approx. 2 sec. each). If I change the resolution >> to 1280x1024 X session begin more stable (blanking for 1 sec with >> 20-30 sec. interval of stable image). If I change the resolution >> futher to 1024x768 X session begin most stable at DVI output. I don't >> face any blinking at all. > > Sounds like display bandwidth issues. You might try setting the > display priority to high: > radeon.disp_priority=2 > As per your attempt 4 below. As for the error you are getting, your > kernel may be too old to support that parameter. A newer kernel may > work better in general. > > Alex > >> >> My experiments to solve the issue: >> Try 1. First I tried to use other hdd with other non X-based OS and it >> seems to be OK at 1600x1200 at DVI so it seems not to be a real >> hardware problem. >> Try 2. Then I tried to upgrade X.org to most recent version from >> debian backports repo (first - was, second - upgraded): xserver-xorg >> (7.5.8 > 7.6.8), xserver-xorg-core (1.7.7.14 > 1.10.4.1) >> xserver-xorg-video-radeon (6.13.1.2 > 6.14.2.1). Sorry for the >> packages name - they are debian specific, because I don't know how it >> called in X repo. But nothing happened. >> Try 3. I tried to play with xrandr modes, but no success. >> Try 4. I tried to put radeon.disp_priority=2 at kernel boot (as >> mentioned at [1], [2], [3]) but got an error message: "[5.433004] >> radeon: Unknown parameter `disp_priority'" (initial call string: >> [0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-2.6.32-5-686 >> root=UUID=4ddfc6de-7006-47ae-b142-7fdf1228beae ro quiet >> radeon.disp_priority=2 ) >> >> Now I don't know where to digg to solve the issue. >> >> I know that I need to provide the X.org.log and dmesg.out, but I don't >> know, if I allowed to send it directly to the list. >> >> [1] https://bugzilla.kernel.org/show_bug.cgi?id=26552 >> [2] https://bugs.freedesktop.org/show_bug.cgi?id=33657 >> [3] https://bugs.freedesktop.org/show_bug.cgi?id=48772 >> >> -- >> regards, Eduard >> _______________________________________________ >> xorg@lists.x.org: X.Org support >> Archives: http://lists.freedesktop.org/archives/xorg >> Info: http://lists.x.org/mailman/listinfo/xorg >> Your subscription address: alexdeuc...@gmail.com _______________________________________________ xorg@lists.x.org: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: http://lists.x.org/mailman/listinfo/xorg Your subscription address: arch...@mail-archive.com
