| Summary: | UXA accelleration renders compiz transparency bleached | ||||||
|---|---|---|---|---|---|---|---|
| Product: | xorg | Reporter: | Martin <bugs> | ||||
| Component: | Driver/intel | Assignee: | Eric Anholt <eric> | ||||
| Status: | RESOLVED FIXED | QA Contact: | Xorg Project Team <xorg-team> | ||||
| Severity: | normal | ||||||
| Priority: | medium | CC: | jian.j.zhao, sa, vvasaitis | ||||
| Version: | 7.4 (2008.09) | Keywords: | NEEDINFO | ||||
| Hardware: | Other | ||||||
| OS: | All | ||||||
| Whiteboard: | |||||||
| i915 platform: | i915 features: | ||||||
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Forgot to mention the hardware: GM965/GL960. Don't know if that helps, but I can confirm that bug with GM45 and 4500MHD using git master branch of every component involved (mesa, libdrm, xorg, video-intel, kernel+drm-intel-next). This only happens with compiz. KDE composite window manager (kwin) also has transparency but doesn't bleach. *** This bug has been marked as a duplicate of bug 19970 *** Reopening because I the fix this was marked as a dupe of shouldn't have fixed this, and I think I reproduced it just the other day with Mesa master. Confirm that the bug is still present with Tormods intel driver in Jaunty: 2:2.6.99.1+git20090309.dc12c4b3-0ubuntu0tormod I can't reproduce this now with current Mesa master. Could you re-test? Works fine for me too, using Mesa commit 699897e81c623e53be51fba0488f535b0a8d7761. Fixed for me too! Thx. (Not sure if it's best to reopen this bug or submit a new one, but since the description of this one matches the behaviour I'm experiencing exactly, I thought I'd reuse it.) When I switch from EXA to UXA, I get the following behaviour under compiz: - First of all, anything that has 100% opacity displays fine. - Completely black areas become completely transparent, at any opacity other than 100%. - Anything else that is partially transparent creates a "washed out" effect when blended with the background. The effect is more pronounced as the luminance and the opacity increases; i.e. it's worse for bright areas compared to dark areas, and it's worse for high opacity compared to high transparency. With EXA everything displays fine. Hardware information: Dell Optiplex GX620 00:02.0 VGA compatible controller: Intel Corporation 82945G/GZ Integrated Graphics Controller (rev 02) Intel(R) Pentium(R) D CPU 3.00GHz (running in 64-bit mode) monitor connected to the VGA connector System information: Debian GNU/Linux unstable kernel: linux-image-2.6.29-2-amd64 2.6.29-5 (based on upstream 2.6.29.3) X server: xserver-xorg-core 2:1.6.1.901-2 intel driver: xserver-xorg-video-intel 2:2.7.1-1 mesa: libgl1-mesa-glx 7.4.1-1 libdrm: libdrm-intel1 2.4.9-2 / libdrm2 2.4.9-2 I have also tested this with xserver-xorg-video-intel 2:2.7.99.1-1 from Debian experimental; the result is exactly the same. I can attach xorg.conf / Xorg.0.log / dmesg as needed. Thanks, Vasilis Just thought I'd mention that I've just tried this again with kernel 2.6.30 (again the Debian stock kernel, package linux-image-2.6.30-1-amd64 2.6.30-1), both with xserver-xorg-video-intel 2:2.7.1-1 and 2:2.7.99.901-2, and the problem remains the same. Vasilis: you're running old Mesa. OK, fair enough. I've just tried with version 7.5~rc4-1 of the libgl1-mesa-glx package from Debian experimental, and while a few of the visual artifacts I've described have disappeared, quite a few of them remain too. Might I ask which version I would need to get? Thanks. Never mind, I missed libgl1-mesa-dri when I was upgrading the packages, everything displays correctly now thanks. :^) |
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Created attachment 21951 [details] Picture showing the bleached transparancy rendering of UXA and normal for EXA I'm testing Kubuntu Jaunty with xorg-edgers packages (launchpad.net) and noticed that when I'm using UXA (which implies DRI2) transparancy in compiz is rendered bleached. I've attached a screenshot to explain the bug. Intel driver in xorg-edgers momentarily is 2.6.99, xorg server 1.5.99.3, DRI2 is 1.5.99.3