On Mon, Oct 09, 2023 at 09:27:02AM +0800, Huacai Chen wrote: > Hi, all, > > On Tue, Sep 26, 2023 at 10:31 PM Huacai Chen <chenhua...@kernel.org> wrote: > > > > Hi, all, > > > > On Tue, Sep 26, 2023 at 7:15 PM Linux regression tracking (Thorsten > > Leemhuis) <regressi...@leemhuis.info> wrote: > > > > > > [CCing the regression list, as it should be in the loop for regressions: > > > https://docs.kernel.org/admin-guide/reporting-regressions.html] > > > > > > Hi, Thorsten here, the Linux kernel's regression tracker. > > > > > > On 13.09.23 14:02, Jaak Ristioja wrote: > > > > > > > > Upgrading to Linux 6.5 on a Lenovo ThinkPad L570 (Integrated Intel HD > > > > Graphics 620 (rev 02), Intel(R) Core(TM) i7-7500U) results in a blank > > > > screen after boot until the display manager starts... if it does start > > > > at all. Using the nomodeset kernel parameter seems to be a workaround. > > > > > > > > I've bisected this to commit 60aebc9559492cea6a9625f514a8041717e3a2e4 > > > > ("drivers/firmware: Move sysfb_init() from device_initcall to > > > > subsys_initcall_sync"). > > > > > > Hmmm, no reaction since it was posted a while ago, unless I'm missing > > > something. > > > > > > Huacai Chen, did you maybe miss this report? The problem is apparently > > > caused by a commit of yours (that Javier applied), you hence should look > > > into this. > > I'm sorry but it looks very strange, could you please share your config > > file? > As confirmed by Jaak, disabling DRM_SIMPLEDRM makes things work fine > again. So I guess the reason:
Did Jaak reply privately? It should have been disclosed in public
ML here instead.
>
> When SIMPLEDRM takes over the framebuffer, the screen is blank (don't
> know why). And before 60aebc9559492cea6a9625f ("drivers/firmware: Move
> sysfb_init() from device_initcall to subsys_initcall_sync") there is
> no platform device created for SIMPLEDRM at early stage, so it seems
> also "no problem".
I don't understand above. You mean that after that commit the platform
device is also none, right?
Confused...
--
An old man doll... just what I always wanted! - Clara
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