Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: ubuntu-drivers-common (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1835996
Title:
Dell Precision 7730 - The screen will be flickering after resumed from
"display sleep" (ONLY occurs on AUO UHD#8CJK2 panel)
Status in ubuntu-drivers-common package in Ubuntu:
Confirmed
Bug description:
[Summary]
Dell Precision 7730 - The screen will be flickering after resumed from
"display sleep" (ONLY occurs on AUO UHD#8CJK2 panel)
[Reproduce Steps]
1. Install Ubuntu 16.04/18.04 on Precision 7730;
2. Disable automatic system sleep;
3. Wait for display to enter sleep;
4. Resume from display sleep.
[Results]
Expected: The screen wakes up as normal;
Actual: The screen is flickering.
[Additional Information]
1. This bug can be reproduced both Dell OEM Ubuntu 16.04 image and
Canonical Ubuntu 16.04 image (Default video driver/firmware version is 390.25);
2. This bug still can be reproduced on Ubuntu 18.04;
3. "apt-get install nvidia current", the video driver/firmware version
304.135 will be installed. This bug does not appear with this driver;
4. Also tested version 331 (working properly) and version 384 (This bug
can be reproduced.);
5. This bug does not appear on external monitors (working properly via
WD15 and directly attached);
6 Same behavior with BIOS 1.4.2;
7. Similar behavior with RHEL Enterprise Linux Developer Workstation 7.5
64bit -> No video at all when attempting to resume from display sleep or system
sleep;
8. System is working properly using Windows 10 Pro 64bit;
9. More information from customer:
https://www.dell.com/community/XPS/Precision-7730-display-lined-flickering-in-BIOS-DO-NOT-BUY/td-p/6219020
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