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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.
Can you please attach dmesg & kernel log Video bugs often only happen on a very specific combination of GPU, motherboard, screen and thus may only affect a very small number of peoples (sometimes only 1)
Created attachment 504958 [details] dmesg command output M. Glisse: You also asked for the kernel log. Unfortunately, I do not know the command to produce this. If you could advise, I will be happy to oblige. Regards, Steve Steven Zafonte
dmesg command in a terminal.
M. Glisse, The dmesg output is found in the old attachment. I bought a new graphics board to get the glitch to stop so I have no further input on it. Regards, Steven Zafonte
Since RHEL 6.2 External Beta has begun, and this bug remains unresolved, it has been rejected as it is not proposed as exception or blocker. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux.
Red Hat Enterprise Linux 6 is in the Production 3 Phase. During the Production 3 Phase, Critical impact Security Advisories (RHSAs) and selected Urgent Priority Bug Fix Advisories (RHBAs) may be released as they become available. The official life cycle policy can be reviewed here: http://redhat.com/rhel/lifecycle This issue does not meet the inclusion criteria for the Production 3 Phase and will be marked as CLOSED/WONTFIX. If this remains a critical requirement, please contact Red Hat Customer Support to request a re-evaluation of the issue, citing a clear business justification. Note that a strong business justification will be required for re-evaluation. Red Hat Customer Support can be contacted via the Red Hat Customer Portal at the following URL: https://access.redhat.com/