From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 56F9F417350; Thu, 2 Jul 2026 16:29:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783009763; cv=none; b=CEOXpIcCuvqAiYQmtXoobXaJzW+0I4x+gbq35oJ5xijRC3duOJel+nIGwBIPTIrxEs3XkuqVfsp9AUjNojo7jR7jn1aEyTfBwLtqd6mj/nSbJCg2zhOn8+eSqmyPexCS1RujBCNBWmqR9UPckUTXFGgUQ+HapwMAL1ICyWiKelk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783009763; c=relaxed/simple; bh=ww0G4Xis/O98MFl++M2OOm89lS0/4JuxhSCsYCY5TFI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HT1267kf5uguPGrEM3eLgcfwLXxKRMpkQSHK6IbhjOdSOGXu/9u2JFjUc45suIISS/vW+yocTPfl6WrWM0njtACuo6xbIDAybaDhG4EmnVWqBU6uayv0geAJLb2tUTE+WjxJ175Wiy+v65AphZnx6elWK00199EsvCxaPMl0Vck= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=l9cEQuY+; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="l9cEQuY+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1E97A1F00A3D; Thu, 2 Jul 2026 16:29:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1783009759; bh=ZZIVxnzYcb3cftog1GmBd8IlvlKZmGS2TRHsrK9XKqU=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=l9cEQuY+vbFhbHMPm96fttbCYrt2aaXIE9vm0jbaeaur9pxx7NWAiZWwzY9lE7rQQ 7Qyxc2kk5hynboyfonsKMEyXMpAXnVFWLBbqb3/l3IObAB2VRyuJ/jlIVPz+d57xsT +cKXIOYQf/53ouLXLohX1ZGWXxbtadjczn01ObIE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Steffen Persvold , Helge Deller Subject: [PATCH 5.15 76/95] fbdev: modedb: Fix misaligned fields in the 1920x1080-60 mode Date: Thu, 2 Jul 2026 18:20:19 +0200 Message-ID: <20260702155110.811651334@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260702155109.196223802@linuxfoundation.org> References: <20260702155109.196223802@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Steffen Persvold commit d894c48a57d78206e4df9c90d4acfaf39394806a upstream. The 1920x1080@60 modedb entry has one too many initializers before its sync field: a stray "0" occupies the sync slot, which shifts the remaining values by one field. The entry therefore decodes as sync = 0, vmode = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT (0x3, i.e. FB_VMODE_INTERLACED | FB_VMODE_DOUBLE), and flag = FB_VMODE_NONINTERLACED, instead of the intended sync = positive H/V, vmode = non-interlaced. fb_find_mode() then returns a 1920x1080 mode flagged as interlaced + doublescan with active-low syncs. Drivers that honour var->vmode and var->sync when programming display timing enable doublescan and the wrong sync polarity, corrupting the output. Drop the stray initializer so sync and vmode hold their intended values (positive H/V sync, non-interlaced), matching the adjacent 1920x1200 entry. Fixes: c8902258b2b8 ("fbdev: modedb: Add 1920x1080 at 60 Hz video mode") Cc: stable@vger.kernel.org Signed-off-by: Steffen Persvold Signed-off-by: Helge Deller Signed-off-by: Greg Kroah-Hartman --- drivers/video/fbdev/core/modedb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/video/fbdev/core/modedb.c +++ b/drivers/video/fbdev/core/modedb.c @@ -258,7 +258,7 @@ static const struct fb_videomode modedb[ FB_VMODE_DOUBLE }, /* 1920x1080 @ 60 Hz, 67.3 kHz hsync */ - { NULL, 60, 1920, 1080, 6734, 148, 88, 36, 4, 44, 5, 0, + { NULL, 60, 1920, 1080, 6734, 148, 88, 36, 4, 44, 5, FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED },