Just to add that all the icons in Elements panel, not just arrowheads, are expanded, unlike text that ignores Page zoom. Other icons, ugly as they appear when zoomed, do seem to function though.
Steps to reproduce:
1. Start Chromium with new (temporary) profile
2. Go to chrome://settings/advanced
3. Set Page zoom to 500%
4. For any page with content, open the Elements panel
5. Try to expand/shrink elements
What happens:
With the expanding/shrinking arrowheads zoomed 500%, but with code still at default zoom, it’s extremely difficult to hit the arrowhead in the right spot to expand/shrink elements. Depending on the selected Page zoom level the actual hotspot may even fall completely outside the arrowhead graphic (to the left from it).
What I expect to happen:
For the arrowheads and the code to both follow the Page zoom setting or ignore it, and either way, for the arrowhead graphic to function as the actual hotspot for expanding/shrinking elements.
I still don’t have a surefire recipe for reproducing this, but it seems especially prone to occur when I have multiple Gnome terminal windows open, or one with multiple tabs in it, in addition to other apps. I have a gut feeling it’s triggered 4/5 times by switching from something else into the set of Gnome terminal windows (with the mouse, via launcher).
I went back in Precise kernels [1] all the way back to 3.0.0-12.20. There seem to be no easy answers: now even 3.0.0-12.20 crashes with -intel.
I think this either means that the hardware’s broken, or that the issue has been lurking in kernels all the way back to (at least) 3.0.0-12.20, and was only triggered by some early Precise updates (during the time window I described above). As I said, it (definitely) wasn’t there when I filed Bug #903831 on 2011-12-13 (because I couldn’t have gotten far enough to trigger that bug with this on the way).
I’ll attach shots of current results with the early Precise kernels below just in case there’s anything useful there.
I think I’ll try ruling out hardware failure with Oneiric, either with the live disc (if that uses -intel) or by reinstalling.
V3.3-rc6 still crashes, irregardless of RC6 being enabled/disabled.
That’s a negative: this one persists.
With persistent booting I was able to get a panic [1] showing with 3.3.0-030300rc4, and it looks the same as what the dmesg I posted in #29 [2] showed: print_bad_pte+0x187/0x1e0 is on top the Trace. Despite the numerous boots I was still unable to reproduce the initial printk+0x2d/0x2f, so it may be fixed in Main or masked by the print_bad_pte+0x187/0x1e0 (though this still is based only on two datapoints in a frustratingly random issue).
Whether RC6 is enabled or disabled doesn’t seem to have bearing on this. 3.2.0-17 produces printk+0x2d/0x2f either way [3], and 3.2.0-18.28 also panics, though less consistently: I was only able to produce a sure printk+0x2d/0x2f once [4], with 3.2.0-18.28 non-pae. Mostly the errors fail to reveal themselves, and when they do, they are different from printk+0x2d/0x2f but also from each other: a couple of times a warn_slowpath_common+0x72/0xa0 (as in Bug #917668, though the hardware and pointers are different) occurred [5], and once it was a Bad page map [6] in unity-greeter.
* [1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/926007/comments/32
* [2] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/926007/comments/29
* [3] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/926007/comments/33
* [4] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/926007/comments/34
* [5] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/926007/comments/35
* [6] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/926007/comments/36
I’ll upload a bunch of new screenshots for reference. They’re all related to testing this so bear with me, I’ll explain them further after uploading.
Still present in upstream 3.3.0-030300rc4 as it was in 3.2.0-17.27.