MrChromebox
Dell Latitude 5400 Chrome (google/sarien): RW_LEGACY: Panel problems
Installing RW_LEGACY (TianoCore) using the Chrome OS Firmware Utility script worked fine.
Not knowing, where to best report issues, I am using this issue tracker.
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But starting Ubuntu 21.10 live system (linux-image-5.13.0-19-generic) from USB or installing Debian sid/unstable (linux-image-5.16.0-rc5-amd64-unsigned), the panel often has a grey vertical bar in the middle.
I reported it to the Linux graphics developers as google/sarien (Dell Latitude 5400 Chrome): Panel issues (vertical middle bar, resolution, …), but didn’t get a response yet.
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Resuming from suspend, the panel has “a lower resolution” – probably related to the first issue.
[Edit: 3rd issue split out into issue https://github.com/MrChromebox/firmware/issues/319.]
no such issue on newer 6.14 kernel, I suggest to try a recent version and close the issue.
no such issue on newer 6.14 kernel, I suggest to try a recent version and close the issue.
It might also be firmware related. What (ChromeOS) coreboot version does your system currently have?
Right, I ran all latest versions
On Sun, 14 Sept 2025, 09:16 Paul Menzel, @.***> wrote:
paulmenzel left a comment (MrChromebox/firmware#318) https://github.com/MrChromebox/firmware/issues/318#issuecomment-3289301436
no such issue on newer 6.14 kernel, I suggest to try a recent version and close the issue.
It might also be firmware related. What (ChromeOS) coreboot version does your system currently have?
— Reply to this email directly, view it on GitHub https://github.com/MrChromebox/firmware/issues/318#issuecomment-3289301436, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAGB3CLSO32H6J357SY277T3SUI3VAVCNFSM6AAAAACGHRQBU2VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTEOBZGMYDCNBTGY . You are receiving this because you commented.Message ID: @.***>
Right, I ran all latest versions
For posterity, can you please add the version numbers. dmesg should contain them in a line starting with DMI:, for example.