rokicki@rocky.STANFORD.EDU (Tomas Rokicki) (10/14/87)
[ This is in reply to some article I can no longer find . . . ] Someone mentioned a bug with the screens. I have seen it quite often, and found a reliable way to duplicate it. To duplicate this bug, collect: A virgin copy of WB 1.2 (or any old bootable copy, actually) Fish disks 60 and 72 Boot the WB. Go into preferences, turn interlace on, and select save. Copy show/show from fish disk 60 onto the WB, probably to the c directory. Copy HAM/sugar and HAM/cathy from 72 onto the WB (you'll probably have to delete preferences and a lot of other stuff to do this.) Now, reboot off that floppy. Wait until everything settles down, and you have a CLI window. (If necessary, open one.) Type 1> show cathy As soon as the disk stops spinning, select `screen to back'. Now, type 1> show sugar Again, wait for the disk to stop spinning. Select `screen to back'; now you see the workbench. Select `screen to back' on the workbench, and you see one of two things: a) the top half of cathy, in non-interlace mode, or b) pyrotechnics, but no crash. At this point, selecting the `screen to back' will probably crash the system. I'm giving Dale a disk so constructed Thursday at BADGE; see y'all there! -tom
rokicki@rocky.STANFORD.EDU (Tomas Rokicki) (10/15/87)
[ This is in reply to some message I can no longer find ] To duplicate this bug, collect: A virgin copy of WB 1.2 (or any old bootable copy, actually) Fish disks 60 and 72 Boot the WB. Go into preferences, turn interlace on, and select save. Copy show/show from fish disk 60 onto the WB, probably to the c directory. Copy HAM/sugar and HAM/cathy from 72 onto the WB (you'll probably have to delete preferences and a lot of other stuff to do this.) Now, reboot off that floppy. Wait until everything settles down, and you have a CLI window. (If necessary, open one.) Type 1> show cathy As soon as the disk stops spinning, select `screen to back'. Now, type 1> show sugar Again, wait for the disk to stop spinning. Select `screen to back'; now you see the workbench. Select `screen to back' on the workbench, and you see one of two things: a) the top half of cathy, in non-interlace mode, or b) pyrotechnics, but no crash. At this point, selecting the `screen to back' will probably crash the system. I'm giving Dale a disk so constructed Thursday at BADGE; see y'all there! -tom
rokicki@rocky.STANFORD.EDU (Tomas Rokicki) (10/15/87)
Actually, you can make that bug pop up quite easily: - Run an interlaced workbench, reboot. - Run a program which opens a custom interlaced screen - Push the screen to back - Run a program which opens a custom non-interlaced screen - Push that screen to back - Push the workbench to back. That's all it takes. The custom screens can be any number of bit planes, high or low res, etc. -tom