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[88.94.97.57]) by smtp.googlemail.com with ESMTPSA id 38308e7fff4ca-39929f18210sm7484111fa.22.2026.06.12.09.41.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Jun 2026 09:41:05 -0700 (PDT) From: Steffen Persvold To: Helge Deller , Simona Vetter Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Steffen Persvold , stable@vger.kernel.org Subject: [PATCH] fbdev: modedb: Fix misaligned fields in the 1920x1080-60 mode Date: Fri, 12 Jun 2026 18:40:41 +0200 Message-Id: <20260612164041.3652599-1-spersvold@gmail.com> X-Mailer: git-send-email 2.40.1 Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 --- drivers/video/fbdev/core/modedb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/fbdev/core/modedb.c b/drivers/video/fbdev/core/modedb.c index 7196b055..333b3d9a 100644 --- 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 }, -- 2.40.1