From: "Maciej W. Rozycki" <email@example.com> To: Greg Kroah-Hartman <firstname.lastname@example.org>, Jiri Slaby <email@example.com> Cc: Linus Torvalds <firstname.lastname@example.org>, Tetsuo Handa <email@example.com>, Daniel Vetter <firstname.lastname@example.org>, Martin Hostettler <email@example.com>, Peilin Ye <firstname.lastname@example.org>, email@example.com, firstname.lastname@example.org, email@example.com Subject: [PATCH 0/3] VT_RESIZEX fixes Date: Thu, 13 May 2021 02:37:13 +0200 (CEST) [thread overview] Message-ID: <alpine.DEB.firstname.lastname@example.org> (raw) Hi, I got to the bottom of the issue with VT_RESIZEX recently discussed and came up with this small patch series, fixing an additional issue that I originally thought might be broken VGA hardware emulation with my laptop, which however turned out to be intertwined with the original problem and also a regression introduced somewhat later. This had to become 1/3 then and to make backporting feasible I had to put a revert of the offending change from last Sep next, followed by a proper fix for the framebuffer issue the Sep change tried to address. See individual change descriptions for details. These have been verified with true VGA hardware (a Trident TVGA8900 ISA video adapter) using various combinations of `svgatextmode' and `setfont' command invocations to change both the VT size and the font size, and also switching between the text console and X11, both by starting/stopping the X server and by switching between VTs. All this to ensure bringing the behaviour of VGA text console back to correct operation as it used to be with Linux 2.6.18. A minor glitch observed was that when I called `svgatextmode' while running X11 the screen became garbled and upon a subsequent VT switch to a text console the machine locked up hard right away. This might require further attention, but is not itself a problem with this patch series or a regression. Please apply then. Maciej
next reply other threads:[~2021-05-13 0:39 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-05-13 0:37 Maciej W. Rozycki [this message] 2021-05-13 0:37 ` [PATCH 1/3] vgacon: Record video mode changes with VT_RESIZEX Maciej W. Rozycki 2021-05-13 0:37 ` [PATCH 2/3] vt_ioctl: Revert VT_RESIZEX parameter handling removal Maciej W. Rozycki 2021-05-13 0:37 ` [PATCH 3/3] vt: Fix character height handling with VT_RESIZEX Maciej W. Rozycki
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