Bug 706634

Description of problem:

Upon upgrading from RHEL 6.0 to 6.1 via software updates:

The screen started to jitter (could be described as a flash) to the right (screen left) by random amounts, then jitter back immediately. The distribution implies the jumps are by 2^N pixel differences,though it could also be a 2^N inch distance.

Sometimes the screen goes black for 1/4 to 2 seconds.

These jitters occur about every other second or so. The screen blanks occur a few times a minute.

The jitter continues to occur during the installation process and when only the encryption password dialog box during startup - though I have not witnessed any screen blanking during the last.

If I weren't so patient, this would make the system unusable, it does give me a headache after 30 minutes or so. When I switch my kvm back to the windows the problem stops.

Also, I tried reinstalling RHEL 6.1 from a downloaded DVD - the problem remains the same. I would go back to RHEL 6.0 if I could, but that is not possible.

My hardware is:
HP Pavillion Slimline s5610y
Model #:BM414AA#ABA
8GB Memory
AMD Athlon X2


Version-Release number of selected component (if applicable):

See above & RHEL 6.1

How reproducible:

Happens randomly, roughly every second or so.

Steps to Reproduce:
1.Happens continuously, doesn't crash the system or interfere with keyboard input.
2.
3.
  
Actual results:

Video glitches as described above.

Expected results:

Stationary video, no headache.

Additional info:

I assumed this was egregious enough that everyone would be reporting it and it would be fixed quickly. After a few days, I decided to figure out how to do a bug report because no one could get a significant amount of work done with this bug on her system.