[RS690M X1200] (Needs 55fbdbae) screen randomly blanks for short times
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
xserver-xorg-driver-ati |
Fix Released
|
Medium
|
|||
xserver-xorg-video-ati (Ubuntu) |
Fix Released
|
Low
|
Unassigned |
Bug Description
Binary package hint: xserver-
I'm using Ubuntu 8.10 with the open source Radeon driver (used by default after installation). By default the driver doesn't detect my display's size and runs at 1024x768. In this mode everything works fine. If I add 'Option "PanelSize" "1680x1050"' to my xorg.conf and restart, the driver uses the display's correct native resolution.
At the higher resolution, the screen now randomly blanks out for a second. On an idle system these blanks are rather seldom, mabye once per 5 minutes. If I enter a 3D game, such as ppracer, these blanks occur much more frequently, many times per minute.
This looks like the 'display buffer underflow' problem described in 'man radeon'. Unfortunately setting option "DisplayPriority" to "HIGH" or "BIOS" doesn't help.
$ lspci -d 1002:791f
01:05.0 VGA compatible controller: ATI Technologies Inc RS690M [Radeon X1200 Series]
snipset from 'apt-cache policy xserver-
Installed: 1:6.9.0+
I'm using a 1680x1050 display connected digitally via my board's HDMI output. I only have a single 2GB SO-DIMM DDR2-800 RAM module on my mainboard, which is used for the shared video RAM.
Copy of Xorg.0.log attached.
Using the proprietary fglrx driver, I don't see those blanks, which should rule out a hardware problem.
Related branches
Changed in xserver-xorg-video-ati: | |
status: | Incomplete → New |
Changed in xserver-xorg-driver-ati: | |
status: | Unknown → Confirmed |
Changed in xserver-xorg-video-ati: | |
importance: | Undecided → Low |
status: | Confirmed → Triaged |
Changed in xserver-xorg-driver-ati: | |
status: | Confirmed → Invalid |
Changed in xserver-xorg-driver-ati: | |
status: | Invalid → Unknown |
Changed in xserver-xorg-driver-ati: | |
status: | Unknown → Fix Released |
summary: |
- [RS690M X1200] screen randomly blanks for short times + [RS690M X1200] (Needs 55fbdbae) screen randomly blanks for short times |
tags: | added: intrepid |
Changed in xserver-xorg-driver-ati: | |
importance: | Unknown → Medium |
Changed in xserver-xorg-driver-ati: | |
importance: | Medium → Unknown |
Changed in xserver-xorg-driver-ati: | |
importance: | Unknown → Medium |
Does the problem also appear if you use the radeonhd driver instead of the driver "radeon"?
Thanks.