Bug 442892 - Intel Coffee Lake-S GT2 - Integrated Graphics Controller is not setup correctly.
Summary: Intel Coffee Lake-S GT2 - Integrated Graphics Controller is not setup correctly.
Status: RESOLVED WORKSFORME
Alias: None
Product: kwin
Classification: Plasma
Component: general (show other bugs)
Version: 5.21.5
Platform: Kubuntu Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords: regression
Depends on:
Blocks:
 
Reported: 2021-09-24 11:52 UTC by mik30
Modified: 2022-10-08 04:53 UTC (History)
2 users (show)

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Description mik30 2021-09-24 11:52:39 UTC
SUMMARY
Intel Coffee Lake-S GT2 - Integrated Graphics Controller is not setup correctly.
No failsafe return to former display settings implemented.
Just 2 vertical frequencies possible (50Hz or 60Hz) from which 60Hz is incorrectly setup. In 18.04.5 there was at least the option for 59,94Hz

STEPS TO REPRODUCE
1. Boot 21.04 or 18.04 from Bootstick on a FullHD Display connected through a Yamaha RX-V767 Receiver. The system Boots with just 720p resolution.
2. Got to display settings and change resoloution to 1080p.

OBSERVED RESULT
No HDMI signal is produced. 
No failsafe fallback after a few seconds.
The system is unusable.


EXPECTED RESULT
The Display should change to 1080p with 60Hz vertical refresh.
The Driver should do a fallback if the user does not acknowledge a proper
Resolution within 5 seconds.


SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 18.04.5 and 21.04
Comment 1 Nate Graham 2022-09-08 16:13:34 UTC
Are you able to reproduce this issue in Plasma 5.25 or later?
Comment 2 Bug Janitor Service 2022-09-23 04:48:32 UTC
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 3 Bug Janitor Service 2022-10-08 04:53:54 UTC
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!