The vcons issue is covered by bug 144178, and since it has a more detailed analysis of the issue let's focus this bug report on the broken DPMS issue.
The corruption and performance issues mentioned in comment #6 are covered by bug #154514.
For the tuxpaint issue described in comment #7, bug #144182 seems to cover that.
The vcons issue is covered by bug 144178, and since it has a more detailed analysis of the issue let's focus this bug report on the broken DPMS issue.
The corruption and performance issues mentioned in comment #6 are covered by bug #154514.
For the tuxpaint issue described in comment #7, bug #144182 seems to cover that.