Thank you for taking the time to report this issue and helping to make Ubuntu better.
Examining the information you have given us, I see many hardware issues and wonder if you have a faulty power supply (thus possibly your disk issues, plus the video flickering issues), and suggest you check that out. For example this appears over & over again :- [ 1576.177440] ata1.00: configured for UDMA/133 [ 1576.177458] sd 0:0:0:0: [sda] tag#4 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 1576.177464] sd 0:0:0:0: [sda] tag#4 Sense Key : Medium Error [current] [descriptor] [ 1576.177468] sd 0:0:0:0: [sda] tag#4 Add. Sense: Unrecovered read error - auto reallocate failed [ 1576.177473] sd 0:0:0:0: [sda] tag#4 CDB: Read(10) 28 00 3f 0e 8c 00 00 00 08 00 [ 1576.177477] blk_update_request: I/O error, dev sda, sector 1057917952 This bug report can be converted to a question (which is aimed at support). You can also find help with your problem in the support forum of your local Ubuntu community http://loco.ubuntu.com/ or asking at https://askubuntu.com or https://ubuntuforums.org, or for more support options please look at https://discourse.ubuntu.com/t/community- support/709 I've marked this bug incomplete as normal support steps don't appear to have been tried, or evidence of them hasn't been provided. If you believe I'm in error, or can provide additional detail of steps done, please change status back to "New" and leave comment, or additional information as to what was attempted. Thanks again for helping make Ubuntu better. ** Changed in: xorg (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1844609 Title: my screen flickering To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1844609/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
