On Fri, 2010-02-12 at 16:50 +0100, Bruno Kleinert wrote: > Am Dienstag, den 02.02.2010, 16:08 +0100 schrieb Bruno Kleinert: > > A further experiment to collect information: > > > > On the Intel notebook I tried blindly to restore gamma values from the > > KMS framebuffer text console with DISPLAY=:0.0 xgamma -gamma 1.0 but > > that didn't bring back neither the framebuffer console nor the X session > > when I tried to switch to it. > > > > Only Blindly unlocking the GNOME screensaver and issuing the xgamma > > command restores the gamma values for the X session and also the KMS > > framebuffer text. Btw.: Also at the framebuffer console when I issued > > the xgamma command before, xgamma claimed that the gamma settings > > already were all set to 1.0 for R, G and B. > And some other news from tests: > > After installing xserver-xorg-video-radeon and mesa 7.7, both from > experimental, the AMD/ATI machine is able to run compiz (Works really > surprisingly stable - but that's off topic here ;). > > I installed compiz packages also on the Notebook with Intel GPU. To my > surprise *both* machines could suspend and resume without any black > screen at all! I don't have too many suspend/resume cycles until now, > but ATM it seems as if both machines resume reliably when they're > running compiz.
That might explain why I haven't seen the problem, as I run compiz almost exclusively. :) > * Software - that likely is - involved: Metacity, configured as > compositing manager (Use gconf-editor to > set /apps/metacity/general/compositing_manager to 'true') and > GNOME screensaver Does the problem also occur with Metacity with compositing disabled? What about other window managers? > My conclusion: It's hardware and driver independent, so it's likely to > be a bug in the core xserver. ...and somehow the usage of AIGLX by > compiz works around that issue. If DRI2 is enabled on the Intel machine, compiz probably isn't using AIGLX. I think it's more likely related to some kind of colourmap related interaction unique to compiz or Metacity. -- Earthling Michel Dänzer | http://www.vmware.com Libre software enthusiast | Debian, X and DRI developer -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
